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@ -1,50 +1,28 @@
name: Build Golang packages
on:
push:
branches:
- "**"
tags:
- "v*.*.*"
pull_request:
branches:
- "main"
# # https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
# # https://github.com/goreleaser/goreleaser-action
jobs:
release:
if: startsWith(github.ref, 'refs/tags/')
runs-on: ubuntu-docker
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Setup go
uses: actions/setup-go@v4
with:
go-version: '>=1.22'
cache: false
- name: release-build-linux-amd64
run: GOOS=linux GOARCH=amd64 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-linux-amd64
- name: release-build-linux-386
run: GOOS=linux GOARCH=386 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-linux-386
- name: release-build-linux-arm64
run: GOOS=linux GOARCH=arm64 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-linux-arm64
- name: release-build-linux-arm
run: GOOS=linux GOARCH=arm go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-linux-arm
- name: release-build-linux-riscv64
run: GOOS=linux GOARCH=riscv64 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-linux-riscv64
# name: Release Go package
# on: [push]
- name: release-build-windows-amd64
run: GOOS=windows GOARCH=amd64 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-windows-amd64.exe
- name: release-build-windows-arm64
run: GOOS=windows GOARCH=arm64 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-windows-arm64.exe
# jobs:
- name: release-build-darwin-amd64
run: GOOS=darwin GOARCH=amd64 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-darwin-amd64
- name: release-build-darwin-arm64
run: GOOS=darwin GOARCH=arm64 go build -v -ldflags="-s -w -X 'main.Version=${{ github.ref_name }}'" -o bin/p1-logger-${{ github.ref_name }}-darwin-arm64
# build:
# runs-on: ubuntu-docker
# strategy:
# matrix:
# go-version: [ '1.21' ]
# steps:
# - uses: actions/checkout@v4
# # - name: Setup Go ${{ matrix.go-version }}
# # uses: actions/setup-go@v4
# # with:
# # go-version: ${{ matrix.go-version }}
# # # You can test your matrix by printing the current Go version
# - name: Display Go version
# run: go version
# - name: Run GoReleaser
# uses: goreleaser/goreleaser-action@master
# with:
# version: latest
# args: release --rm-dist
- name: Create release
uses: https://gitea.com/actions/release-action@main
with:
files: |-
bin/**
api_key: '${{secrets.RELEASE_TOKEN}}'

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@ -1,5 +1,5 @@
# Use buildx for multi-architecture support
FROM --platform=${BUILDPLATFORM} golang:1.24 AS builder
FROM --platform=${BUILDPLATFORM} golang:1.21 AS builder
WORKDIR /app
@ -11,9 +11,6 @@ RUN go mod download
COPY . .
# Build the application for the specified target architecture
# https://www.docker.com/blog/faster-multi-platform-builds-dockerfile-cross-compilation-guide/
# Declare TARGETOS and TARGETARCH in the local scope so they can be used in the build stage.
ARG TARGETOS TARGETARCH
RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} go build -o p1-logger .
# Create a minimal runtime image

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@ -1,235 +0,0 @@
GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
Preamble
The GNU Affero General Public License is a free, copyleft license for software and other kinds of works, specifically designed to ensure cooperation with the community in the case of network server software.
The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, our General Public Licenses are intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users.
When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things.
Developers that use our General Public Licenses protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License which gives you legal permission to copy, distribute and/or modify the software.
A secondary benefit of defending all users' freedom is that improvements made in alternate versions of the program, if they receive widespread use, become available for other developers to incorporate. Many developers of free software are heartened and encouraged by the resulting cooperation. However, in the case of software used on network servers, this result may fail to come about. The GNU General Public License permits making a modified version and letting the public access it on a server without ever releasing its source code to the public.
The GNU Affero General Public License is designed specifically to ensure that, in such cases, the modified source code becomes available to the community. It requires the operator of a network server to provide the source code of the modified version running there to the users of that server. Therefore, public use of a modified version, on a publicly accessible server, gives the public access to the source code of the modified version.
An older license, called the Affero General Public License and published by Affero, was designed to accomplish similar goals. This is a different license, not a version of the Affero GPL, but Affero has released a new version of the Affero GPL which permits relicensing under this license.
The precise terms and conditions for copying, distribution and modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU Affero General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.
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a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or
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However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.
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You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.
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A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.
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If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
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If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may
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13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the Program, your modified version must prominently offer all users interacting with it remotely through a computer network (if your version supports such interaction) an opportunity to receive the Corresponding Source of your version by providing access to the Corresponding Source from a network server at no charge, through some standard or customary means of facilitating copying of software. This Corresponding Source shall include the Corresponding Source for any work covered by version 3 of the GNU General Public License that is incorporated pursuant to the following paragraph.
Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the work with which it is combined will remain governed by version 3 of the GNU General Public License.
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The Free Software Foundation may publish revised and/or new versions of the GNU Affero General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU Affero General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU Affero General Public License, you may choose any version ever published by the Free Software Foundation.
If the Program specifies that a proxy can decide which future versions of the GNU Affero General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.
p1-logger
Copyright (C) 2024 Pieter Hollander
This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer network, you should also make sure that it provides a way for users to get its source. For example, if your program is a web application, its interface could display a "Source" link that leads users to an archive of the code. There are many ways you could offer source, and different solutions will be better for different programs; see section 13 for the specific requirements.
You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU AGPL, see <http://www.gnu.org/licenses/>.

135
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@ -1,135 +0,0 @@
# P1 logger
P1 logger is a tool designed to store meter data conforming to the [ESMR or DSMR (European / Dutch Smart Meter Requirements) standard](https://github.com/jvhaarst/DSMR-P1-telegram-reader/blob/master/documentation/Dutch%20Smart%20Meter%20Requirements%20v5.0.2%20Final%20P1.pdf) as efficiently as possible in a PostgreSQL database. Optionally, TimescaleDB is supported. The data can easily be retrieved using tools such as Grafana for visualisation and analysis.
![P1 logs visualised in Grafana](https://git.hollander.online/energy/p1-logger/raw/branch/main/screenshots/P1-data-grafana.png)
## Background: data storage architecture
P1 logger aims to store detailed meter data as efficiently as possible. Therefore, a few design choices were made.
All metrics are stored as INT and not NUMERIC or FLOAT to optimise their storage size.
Dt1, Dt2, Rt1, Rt2, G, F and Fl are cumulative meter readings. Therefore, they function as counters that can only go up. By making them pointers to int, they can be set to 'nil' whenever a reading has not changed. This way, they are logged as NULL in the database when no change has happened, saving storage capacity. As an added benefit, this makes data retrieval, visualisation and analysis more light-weight.
Typical P1 meters update gas consumption once per minute. Not saving intermittent values theoretically saves 4 bytes per value. An average month has 43,829.0639 minutes. 4*43,829.0639 = 175,316.26 bytes = 0.18 MB
In practice, storage will be even lower, as gas is usually not consumed continuously. Therefore, a new metric won't be available for every minute.
When Tariff 1 is active, Tariff 2 isn't. When energy is being imported, it is not being returned.
Therefore, only updating their values on-change should save at least 75% storage capacity requirements
An average month has 2,629,743.83 seconds.
This saves at least:
2,629,743.83 seconds * 4 bytes = 10,518,975.32 bytes = 10,518.98 kB = 10.52 MB
This applies both to Dt1 and Dt2 as well as Rt1 and Rt2, only one is recorded at a time.
10.52 * 3 = 31.56 MB.
In addition, many meters only update these metrics once every 10 seconds, meaning even more storage capacity is saved:
10.52 / 10 * 9 = 9,468 MB.
For D1-3 and R1-3, either Dx or Rx will be active. Therefore, their storage requirements can be sliced in half, saving 3 * 10.52 = 42.08 MB. This is different for D and R, as these contain the sum of each phase and are reported simultaneously. Not saving failures when there is no change, will save around 10.52MB per month per metric, so an additional 21.04MB.
### Theoretical storage requirements for a DSMR5 meter with metrics emitted every second
| Column | Column size (bytes) | Per month (MB) | X | Total (MB)|
|:--------------------|---------------------|---------------:|----|-----------:|
| Timestamp | 8 bytes | 21.04 | | |
| Dt1, Dt2, Rt1, Rt2 | 4 bytes | 1.05 | | |
| D, R | 4 bytes | 10.52 | | |
| R | 4 bytes | 10.52 | | |
| F | 4 bytes | 0.00 | | |
| Fl | 4 bytes | 0.00 | | |
| G | 4 bytes | 0.18 | | |
| V1-3, C1-3 | 4 bytes | 10.52 | 6 | 63.12 |
| D1-3, R1-3 | 4 bytes | 10.52 | 3 | 31.56 |
| **Total** | | | | **137.99** |
### Theoretical storage requirements without optimisations
| Column | Column size (bytes) | Per month (MB) | X | Total (MB) |
|:--------------------|---------------------|---------------:|----|-----------:|
| Timestamps | 8 bytes | 21.04 | | |
| Values | 4 bytes | 10.52 | 21 | 220.92 |
| **Total** | | | | **241.96** |
At the expense of having to create more complicated queries for analysis and visualisation, the optimisations save at least 103.97 MB or 1-137.99/241.96 = 43% in uncompressed storage space per month.
### Real-world experiences
In practice, the storage requirements are lower than those mentioned in the aforementioned theoretical calculations. Over 8 months, I collected a database of 1.04GB of metrics. Using ZSTD with the default level 3, the database can be compressed to just 12.77% of this.
```sh
zstd p1_backup.sql
p1_backup.sql : 12.77% ( 1.04 GiB => 136 MiB, p1_backup.sql.zst)
```
It is therefore recommended to use filesystems supporting compression, such as BTRFS. The P1 logger operating on a btrfs filesystem with compression enabled at default levels, can store the aforementioned 1.04GB of metrics in just 136MB of physical disk space. With the highest ZSTD compression level, 19, the 1.04GB database is stored in just 8.14% of its original size.
```sh
zstd -19 p1_backup.sql
p1_backup.sql : 8.14% ( 1.04 GiB => 86.6 MiB, p1_backup.sql.zst)
```
### Storage requirements conclusion
Extrapolating on the real-world data, a full year of P1 metrics logged by this program can be stored in in around 233MB of physical disk space.
### Columns
Data is stored in a table containing the following columns
- timestamp
- delivered_tariff1, delivered_tariff2, returned_tariff1, returned_tariff2
- delivery_all
- returning_all
- failures
- long_failures
- gas
- voltage_l1, voltage_l2, voltage_l3
- current_l1, current_l2, current_l3
- delivery_l1, delivery_l2, delivery_l3
- returning_l1, returning_l2, returning_l3
## Input: P1 reader
P1 Logger relies on a JSON input provided by a P1 reader.
The P1 reader should send its data to an MQTT broker. Each message should be in the following JSON structure.
```json
{
"t":"240615205754S",
"dt1":1448411,
"dt2":1188886,
"rt1":498463,
"rt2":1111828,
"d":0,
"r":121,
"f":18,
"fl":17,
"g":1238688,
"v1":228,
"v2":231,
"v3":230,
"c1":0,
"c2":0,
"c3":0,
"d1":0,
"d2":0,
"d3":4,
"r1":41,
"r2":71,
"r3":0
}
```
This is currently achieved using an ESP32 with ESPhome. Configuration files for the ESP32 setup is included in `esphome/example.yml`.
## Known limitations
- The Grafana database query for "Actuele import of export" is currently quite slow. It works, but would benefit from optimisation.
## References
- <http://domoticx.com/p1-poort-slimme-meter-hardware/>

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@ -0,0 +1,53 @@
# ChatGPT prompt
Please write a golang program that subscribes to an mqtt topic which outputs the following payload
```json
{"t":"231205164749W","dt1":830959,"dt2":729319,"rt1":33727,"rt2":111841,"d":224,"r":0,"f":18,"fl":17,"g":426077,"v1":219,"v2":227,"v3":223,"c1":0,"c2":0,"c3":0,"d1":84,"d2":50,"d3":90,"r1":0,"r2":0,"r3":0}
```
T is the Timestamp in Timezone Europe/Amsterdam and format YYMMDDhhmmss. The letter at the end of the timestamp can be either "W" for Winter or "S" for Summer and indicates daylight savings time.
The data should be inserted into a configurable postgres database with structure
```sql
CREATE TABLE p1 (
timestamp TIMESTAMPTZ,
delivered_tariff1 INT,
delivered_tariff2 INT,
returned_tariff1 INT,
returned_tariff2 INT,
delivery_all INT,
returning_all INT,
failures INT,
long_failures INT,
gas INT,
voltage_l1 INT,
voltage_l2 INT,
voltage_l3 INT,
current_l1 INT,
current_l2 INT,
current_l3 INT,
delivery_l1 INT,
delivery_l2 INT,
delivery_l3 INT,
returning_l1 INT,
returning_l2 INT,
returning_l3 INT
);
CREATE EXTENSION IF NOT EXISTS timescaledb;
SELECT create_hypertable('p1', 'timestamp', if_not_exists => TRUE);
```
The connections should be configured using the following environment variables
```conf
MQTT_BROKER=tls://mqtt.example.com:8883
MQTT_TOPIC=p1/#
MQTT_USERNAME=your_mqtt_username
MQTT_PASSWORD=your_mqtt_password
PG_DB='host=localhost port=5432 user=p1 password=secret-replace dbname=p1 sslmode=disable'
```
The program should be usable in production and should automatically recover on database or mqtt service interruptions.

View file

@ -28,14 +28,15 @@ services:
MQTT_USERNAME: ${MQTT_USERNAME}
MQTT_PASSWORD: ${MQTT_PASSWORD}
PG_DB: ${PG_DB}
TIMESCALEDB_ENABLED: ${TIMESCALEDB_ENABLED}
LOG_LEVEL: ${LOG_LEVEL}
TZ: ${TZ}
depends_on:
timescaledb:
condition: service_healthy
networks:
- internal
volumes:
- /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro
networks:
internal:

View file

@ -8,6 +8,7 @@ services:
MQTT_USERNAME: ${MQTT_USERNAME}
MQTT_PASSWORD: ${MQTT_PASSWORD}
PG_DB: ${PG_DB}
TIMESCALEDB_ENABLED: ${TIMESCALEDB_ENABLED}
LOG_LEVEL: ${LOG_LEVEL}
TZ: ${TZ}
volumes:
- /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro

5
esphome/.gitignore vendored
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@ -1,5 +0,0 @@
# Gitignore settings for ESPHome
# This is an example and may include too much for your use-case.
# You can modify this file to suit your needs.
/.esphome/
/secrets.yaml

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@ -1,318 +0,0 @@
# This configuration is loosely based on https://github.com/zuidwijk/slimmelezer-wt32-eth01
substitutions:
device_name: p1reader
device_description: "P1 reader"
esphome:
name: ${device_name}
comment: "${device_description}"
name_add_mac_suffix: false
on_boot:
then:
- if:
condition:
lambda: return id(has_key);
then:
- lambda: |-
std::string key(id(stored_decryption_key), 32);
id(dsmr_instance).set_decryption_key(key);
else:
- logger.log:
level: info
format: "Not using decryption key. If you need to set a key use Home Assistant service 'ESPHome: ${device_name}_set_dsmr_key'"
esp32:
board: esp32dev
framework:
type: arduino
# Enable logging
logger:
baud_rate: 115200
logs:
component: ERROR
# Enable Home Assistant API
# api:
# services:
# service: set_dsmr_key
# variables:
# private_key: string
# then:
# - logger.log:
# format: Setting private key %s. Set to empty string to disable
# args: [private_key.c_str()]
# - globals.set:
# id: has_key
# value: !lambda "return private_key.length() == 32;"
# - lambda: |-
# if (private_key.length() == 32)
# private_key.copy(id(stored_decryption_key), 32);
# id(dsmr_instance).set_decryption_key(private_key);
ota:
safe_mode: true
# dashboard_import:
# package_import_url: github://zuidwijk/slimmelezer-wt32-eth01/sl32.yaml@main
uart:
id: uart_dsmr
baud_rate: 115200
rx_pin: GPIO5
rx_buffer_size: 1700
web_server:
port: 80
network:
enable_ipv6: true
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 1
power_pin: GPIO16
globals:
- id: has_key
type: bool
restore_value: yes
initial_value: "false"
- id: stored_decryption_key
type: char[32]
restore_value: yes
# https://esphome.io/components/sensor/dsmr.html
dsmr:
uart_id: uart_dsmr
id: dsmr_instance
max_telegram_length: 1700
# For Luxembourg users set here your decryption key
#decryption_key: !secret decryption_key // enable this when using decryption for Luxembourg; key like '00112233445566778899AABBCCDDEEFF'
# Time is required for Wireguard to function properly.
time:
- platform: sntp
id: sntp_time
timezone: Europe/Amsterdam
servers:
- 0.pool.ntp.org
- 1.pool.ntp.org
- 2.pool.ntp.org
# wireguard:
# address: YOUR_ADDRESS
# private_key: YOUR_PRIVATE_KEY
# peer_endpoint: YOUR_PEER_ENDPOINT
# peer_public_key: YOUR_PEER_PUBLIC_KEY
# # Optional netmask (below are the defaults if omitted)
# # https://esphome.io/components/wireguard.html#static-routes-and-outgoing-connections
# netmask: 255.255.0.0
# # Optional endpoint port (WireGuard default if omitted)
# peer_port: 51820
# # Optional pre-shared key (omit if not in use)
# # peer_preshared_key: XxYyZzWw...=
# # Optional list of ip/mask (any host is allowed if omitted)
# peer_allowed_ips:
# - 10.10.10.0/24
# # Optional keepalive (disabled by default)
# peer_persistent_keepalive: 25s
mqtt:
# https://esphome.io/components/mqtt.html
# topic_prefix (Optional, string): The prefix used for all MQTT messages. Should not contain trailing slash. Defaults to <APP_NAME>. Use null to disable publishing or subscribing of any MQTT topic unless it is explicitly configured.
topic_prefix: null
discovery: false
discovery_retain: false
birth_message:
topic: p1/status
payload: online
will_message:
topic: p1/status
payload: offline
id: p1_reader
broker: 10.10.10.23
port: 1883
username: p1_reader
password: your_password
sensor:
- platform: dsmr
gas_delivered:
name: "Gas Consumed"
id: gas_delivered
energy_delivered_tariff1:
name: "Energy Consumed Tariff 1"
id: energy_delivered_tariff1
energy_delivered_tariff2:
name: "Energy Consumed Tariff 2"
id: energy_delivered_tariff2
energy_returned_tariff1:
name: "Energy Produced Tariff 1"
id: energy_returned_tariff1
energy_returned_tariff2:
name: "Energy Produced Tariff 2"
id: energy_returned_tariff2
power_delivered:
name: "Power Consumed"
accuracy_decimals: 3
id: power_delivered
power_returned:
name: "Power Produced"
accuracy_decimals: 3
id: power_returned
electricity_failures:
name: "Electricity Failures"
icon: mdi:alert
id: electricity_failures
electricity_long_failures:
name: "Long Electricity Failures"
icon: mdi:alert
id: electricity_long_failures
electricity_sags_l1:
name: "Voltage sags L1"
icon: mdi:alert
id: electricity_sags_l1
electricity_sags_l2:
name: "Voltage sags L1"
icon: mdi:alert
id: electricity_sags_l2
electricity_sags_l3:
name: "Voltage sags L1"
icon: mdi:alert
id: electricity_sags_l3
electricity_swells_l1:
name: "Voltage swells L1"
icon: mdi:alert
id: electricity_swells_l1
electricity_swells_l2:
name: "Voltage swells L1"
icon: mdi:alert
id: electricity_swells_l2
electricity_swells_l3:
name: "Voltage swells L1"
icon: mdi:alert
id: electricity_swells_l3
voltage_l1:
name: "Voltage Phase 1"
id: voltage_l1
accuracy_decimals: 0
voltage_l2:
name: "Voltage Phase 2"
id: voltage_l2
accuracy_decimals: 0
voltage_l3:
name: "Voltage Phase 3"
id: voltage_l3
accuracy_decimals: 0
current_l1:
name: "Current Phase 1"
id: current_l1
current_l2:
name: "Current Phase 2"
id: current_l2
current_l3:
name: "Current Phase 3"
id: current_l3
power_delivered_l1:
name: "Power Consumed Phase 1"
accuracy_decimals: 3
id: power_delivered_l1
power_delivered_l2:
name: "Power Consumed Phase 2"
accuracy_decimals: 3
id: power_delivered_l2
power_delivered_l3:
name: "Power Consumed Phase 3"
accuracy_decimals: 3
id: power_delivered_l3
power_returned_l1:
name: "Power Produced Phase 1"
accuracy_decimals: 3
id: power_returned_l1
power_returned_l2:
name: "Power Produced Phase 2"
accuracy_decimals: 3
id: power_returned_l2
power_returned_l3:
name: "Power Produced Phase 3"
accuracy_decimals: 3
id: power_returned_l3
on_value:
- mqtt.publish_json:
topic: p1/metrics
payload: |-
root["t"] = id(dsmr_timestamp).state;
root["dt1"] = id(energy_delivered_tariff1).state * 1000;
root["dt2"] = id(energy_delivered_tariff2).state * 1000;
root["rt1"] = id(energy_returned_tariff1).state * 1000;
root["rt2"] = id(energy_returned_tariff2).state * 1000;
root["d"] = id(power_delivered).state * 1000;
root["r"] = id(power_returned).state * 1000;
root["f"] = id(electricity_failures).state;
root["fl"] = id(electricity_long_failures).state;
root["g"] = id(gas_delivered).state * 1000;
root["v1"] = id(voltage_l1).state;
root["v2"] = id(voltage_l2).state;
root["v3"] = id(voltage_l3).state;
root["c1"] = id(current_l1).state;
root["c2"] = id(current_l2).state;
root["c3"] = id(current_l3).state;
root["d1"] = id(power_delivered_l1).state * 1000;
root["d2"] = id(power_delivered_l2).state * 1000;
root["d3"] = id(power_delivered_l3).state * 1000;
root["r1"] = id(power_returned_l1).state * 1000;
root["r2"] = id(power_returned_l2).state * 1000;
root["r3"] = id(power_returned_l3).state * 1000;
- platform: uptime
name: "SlimmeLezer Uptime"
- platform: wireguard
latest_handshake:
name: 'WireGuard Latest Handshake'
text_sensor:
- platform: dsmr
identification:
name: "DSMR Identification"
p1_version:
name: "DSMR Version"
timestamp:
name: "DSMR Timestamp"
id: dsmr_timestamp
# (YYMMDDhhmmssX, where X is S or W for summer- or wintertime).
# https://github.com/matthijskooijman/arduino-dsmr/blob/master/README.md
# https://srolija.medium.com/gos-summer-time-localization-issues-4c8ab702806b
# https://github.com/thomasvnl/P1DSMRReader-ESPHome
# https://pkg.go.dev/github.com/mijnverbruik/dsmr#Timestamp.Position
# https://pkg.go.dev/github.com/mijnverbruik/dsmr#Timestamp
- platform: version
name: "ESPHome Version"
hide_timestamp: true
- platform: ethernet_info
ip_address:
name: ESP IP Address
- platform: wireguard
address:
name: 'WireGuard Address'
- platform: template
name: "Current time"
lambda: |-
char str[17];
time_t currTime = id(sntp_time).now().timestamp;
strftime(str, sizeof(str), "%Y-%m-%d %H:%M", localtime(&currTime));
return { str };
update_interval: 1s
binary_sensor:
- platform: wireguard
status:
name: 'WireGuard Status'

View file

@ -4,9 +4,5 @@ MQTT_USERNAME=your_username
MQTT_PASSWORD=your_password
PG_DB='host=localhost port=5432 user=postgres password=secret-replace dbname=p1 sslmode=disable'
TIMESCALEDB_ENABLED=true
# LOG_LEVEL: DEBUG, INFO, WARN or ERROR. Standard: INFO
LOG_LEVEL=INFO
TZ=Europe/Amsterdam

17
go.mod
View file

@ -1,22 +1,15 @@
module git.hollander.online/energy/p1-logger
go 1.24
go 1.21.4
require (
github.com/eclipse/paho.mqtt.golang v1.5.0
github.com/eclipse/paho.mqtt.golang v1.4.3
github.com/lib/pq v1.10.9
github.com/pressly/goose/v3 v3.24.1
)
require (
github.com/mfridman/interpolate v0.0.2 // indirect
github.com/sethvargo/go-retry v0.3.0 // indirect
go.uber.org/multierr v1.11.0 // indirect
)
require (
github.com/gorilla/websocket v1.5.3 // indirect
github.com/gorilla/websocket v1.5.0 // indirect
github.com/joho/godotenv v1.5.1
golang.org/x/net v0.35.0 // indirect
golang.org/x/sync v0.11.0 // indirect
golang.org/x/net v0.8.0 // indirect
golang.org/x/sync v0.1.0 // indirect
)

67
go.sum
View file

@ -1,63 +1,12 @@
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
github.com/eclipse/paho.mqtt.golang v1.5.0 h1:EH+bUVJNgttidWFkLLVKaQPGmkTUfQQqjOsyvMGvD6o=
github.com/eclipse/paho.mqtt.golang v1.5.0/go.mod h1:du/2qNQVqJf/Sqs4MEL77kR8QTqANF7XU7Fk0aOTAgk=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
github.com/eclipse/paho.mqtt.golang v1.4.3 h1:2kwcUGn8seMUfWndX0hGbvH8r7crgcJguQNCyp70xik=
github.com/eclipse/paho.mqtt.golang v1.4.3/go.mod h1:CSYvoAlsMkhYOXh/oKyxa8EcBci6dVkLCbo5tTC1RIE=
github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
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View file

@ -1,902 +0,0 @@
{
"__inputs": [
{
"name": "DS_P1",
"label": "p1",
"description": "",
"type": "datasource",
"pluginId": "grafana-postgresql-datasource",
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{
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{
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"id": "timeseries",
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"version": ""
}
],
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": {
"type": "grafana",
"uid": "-- Grafana --"
},
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
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},
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"fiscalYearStartMonth": 0,
"graphTooltip": 0,
"id": null,
"links": [],
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"panels": [
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"datasource": {
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"fieldConfig": {
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},
"unit": "watt"
},
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},
"gridPos": {
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"w": 12,
"x": 0,
"y": 0
},
"id": 8,
"options": {
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"max",
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"placement": "bottom",
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},
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"sort": "none"
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"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "-- SELECT time_bucket('$__interval', timestamp) AS time, \n-- delivery_l1 - returning_l1 AS \"Vermogen L1\", \n-- delivery_l2 - returning_l2 AS \"Vermogen L2\", \n-- delivery_l3 - returning_l3 AS \"Vermogen L3\",\n-- delivery_all - returning_all AS \"Vermogen totaal\"\n-- FROM p1\n-- WHERE timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz\n\nWITH RECURSIVE DateRange AS (\n SELECT generate_series($__timeFrom()::timestamp, $__timeTo()::timestamp, '$__interval') AS timestamp\n),\nLastValues AS (\n SELECT\n dr.timestamp,\n (SELECT delivery_l1 FROM p1 WHERE timestamp <= dr.timestamp AND delivery_l1 IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS delivery_l1,\n (SELECT delivery_l2 FROM p1 WHERE timestamp <= dr.timestamp AND delivery_l2 IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS delivery_l2,\n (SELECT delivery_l3 FROM p1 WHERE timestamp <= dr.timestamp AND delivery_l3 IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS delivery_l3,\n (SELECT delivery_all FROM p1 WHERE timestamp <= dr.timestamp AND delivery_all IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS delivery_all,\n (SELECT returning_l1 FROM p1 WHERE timestamp <= dr.timestamp AND returning_l1 IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS returning_l1,\n (SELECT returning_l2 FROM p1 WHERE timestamp <= dr.timestamp AND returning_l2 IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS returning_l2,\n (SELECT returning_l3 FROM p1 WHERE timestamp <= dr.timestamp AND returning_l3 IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS returning_l3,\n (SELECT returning_all FROM p1 WHERE timestamp <= dr.timestamp AND returning_all IS NOT NULL ORDER BY timestamp DESC LIMIT 1) AS returning_all\n FROM DateRange dr\n)\nSELECT\n timestamp,\n COALESCE(delivery_l1, 0) - COALESCE(returning_l1, 0) AS \"Leistung L1\",\n COALESCE(delivery_l2, 0) - COALESCE(returning_l2, 0) AS \"Leistung L2\",\n COALESCE(delivery_l3, 0) - COALESCE(returning_l3, 0) AS \"Leistung L3\",\n COALESCE(delivery_all, 0) - COALESCE(returning_all, 0) AS \"Gesamtleistung\"\nFROM LastValues\nORDER BY timestamp;\n",
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"sql": {
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"limit": 50
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"table": "p1"
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"type": "timeseries"
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"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
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"gradientMode": "none",
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"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "linear",
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
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"mappings": [],
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"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "watth"
},
"overrides": []
},
"gridPos": {
"h": 10,
"w": 6,
"x": 12,
"y": 0
},
"id": 4,
"options": {
"legend": {
"calcs": [
"firstNotNull",
"lastNotNull",
"range"
],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "-- SELECT time_bucket('$__interval', timestamp) AS time, \n-- delivered_tariff1+delivered_tariff2 AS \"Import totaal\", \n-- returned_tariff1+returned_tariff2 AS \"Export totaal\", \n-- delivered_tariff1 AS \"Import telwerk 1\", \n-- delivered_tariff2 AS \"Import telwerk 2\", \n-- returned_tariff1 AS \"Export telwerk 1\", \n-- returned_tariff2 AS \"Export telwerk 2\"\n-- FROM p1\n-- WHERE timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz\n\nWITH LastKnownValues AS (\n SELECT\n (SELECT delivered_tariff1 FROM p1 WHERE delivered_tariff1 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_delivered_tariff1,\n (SELECT delivered_tariff2 FROM p1 WHERE delivered_tariff2 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_delivered_tariff2,\n (SELECT returned_tariff1 FROM p1 WHERE returned_tariff1 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_returned_tariff1,\n (SELECT returned_tariff2 FROM p1 WHERE returned_tariff2 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_returned_tariff2\n),\nMainQuery AS (\n SELECT\n time_bucket('$__interval', timestamp) AS time,\n delivered_tariff1,\n delivered_tariff2,\n returned_tariff1,\n returned_tariff2\n FROM\n p1\n WHERE\n timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz\n)\nSELECT\n mq.time,\n (COALESCE(mq.delivered_tariff1, lv.last_delivered_tariff1) + COALESCE(mq.delivered_tariff2, lv.last_delivered_tariff2)) AS \"Import totaal\",\n (COALESCE(mq.returned_tariff1, lv.last_returned_tariff1) + COALESCE(mq.returned_tariff2, lv.last_returned_tariff2)) AS \"Export totaal\",\n COALESCE(mq.delivered_tariff1, lv.last_delivered_tariff1) AS \"Import Zählwerk 1\",\n COALESCE(mq.delivered_tariff2, lv.last_delivered_tariff2) AS \"Import Zählwerk 2\",\n COALESCE(mq.returned_tariff1, lv.last_returned_tariff1) AS \"Export Zählwerk 1\",\n COALESCE(mq.returned_tariff2, lv.last_returned_tariff2) AS \"Export Zählwerk 2\"\nFROM\n MainQuery mq,\n LastKnownValues lv\n",
"refId": "A",
"sql": {
"columns": [
{
"parameters": [],
"type": "function"
}
],
"groupBy": [
{
"property": {
"type": "string"
},
"type": "groupBy"
}
],
"limit": 50
},
"table": "p1"
}
],
"title": "Zählerstände Strom",
"type": "timeseries"
},
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"description": " Erster + Letzter = seit 0, Bereich = aktueller Zeitraum",
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 0,
"gradientMode": "none",
"hideFrom": {
"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "linear",
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
},
"showPoints": "auto",
"spanNulls": false,
"stacking": {
"group": "A",
"mode": "none"
},
"thresholdsStyle": {
"mode": "off"
}
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "watth"
},
"overrides": []
},
"gridPos": {
"h": 10,
"w": 6,
"x": 18,
"y": 0
},
"id": 10,
"options": {
"legend": {
"calcs": [
"firstNotNull",
"lastNotNull",
"range"
],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "-- SELECT time_bucket('$__interval', timestamp) AS time, \n-- delivered_tariff1-returned_tariff1 AS \"Telwerk 1\", \n-- delivered_tariff2-returned_tariff2 AS \"Telwerk 2\", \n-- delivered_tariff1+delivered_tariff2-returned_tariff1-returned_tariff2 AS \"Totaal\"\n-- FROM p1\n-- WHERE timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz\n\nWITH LastKnownValues AS (\n SELECT\n (SELECT delivered_tariff1 FROM p1 WHERE delivered_tariff1 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_delivered_tariff1,\n (SELECT delivered_tariff2 FROM p1 WHERE delivered_tariff2 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_delivered_tariff2,\n (SELECT returned_tariff1 FROM p1 WHERE returned_tariff1 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_returned_tariff1,\n (SELECT returned_tariff2 FROM p1 WHERE returned_tariff2 IS NOT NULL AND timestamp < $__timeFrom()::timestamptz ORDER BY timestamp DESC LIMIT 1) AS last_returned_tariff2\n),\nMainQuery AS (\n SELECT\n time_bucket('$__interval', timestamp) AS time,\n COALESCE(delivered_tariff1, (SELECT last_delivered_tariff1 FROM LastKnownValues)) AS delivered_tariff1,\n COALESCE(delivered_tariff2, (SELECT last_delivered_tariff2 FROM LastKnownValues)) AS delivered_tariff2,\n COALESCE(returned_tariff1, (SELECT last_returned_tariff1 FROM LastKnownValues)) AS returned_tariff1,\n COALESCE(returned_tariff2, (SELECT last_returned_tariff2 FROM LastKnownValues)) AS returned_tariff2\n FROM\n p1\n WHERE\n timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz\n)\nSELECT\n time,\n (delivered_tariff1 - returned_tariff1) AS \"Zählwerk 1\",\n (delivered_tariff2 - returned_tariff2) AS \"Zählwerk 2\",\n (delivered_tariff1 + delivered_tariff2 - returned_tariff1 - returned_tariff2) AS \"Gesamt\"\nFROM\n MainQuery\n",
"refId": "A",
"sql": {
"columns": [
{
"parameters": [],
"type": "function"
}
],
"groupBy": [
{
"property": {
"type": "string"
},
"type": "groupBy"
}
],
"limit": 50
},
"table": "p1"
}
],
"title": "Saldiert Zählerstände",
"type": "timeseries"
},
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"description": "Min: 216,2V. Max: 253V. (-6% bis +10%)",
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
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"gradientMode": "none",
"hideFrom": {
"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "linear",
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
},
"showPoints": "auto",
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},
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"mode": "off"
}
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "volt"
},
"overrides": []
},
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View file

@ -1,902 +0,0 @@
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View file

@ -1,902 +0,0 @@
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}
],
"title": "Meterstanden gesaldeerd",
"type": "timeseries"
},
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"description": "Min: 216,2V. Max: 253V. (-6% tot +10%)",
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 0,
"gradientMode": "none",
"hideFrom": {
"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "linear",
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
},
"showPoints": "auto",
"spanNulls": false,
"stacking": {
"group": "A",
"mode": "none"
},
"thresholdsStyle": {
"mode": "off"
}
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "volt"
},
"overrides": []
},
"gridPos": {
"h": 9,
"w": 12,
"x": 0,
"y": 10
},
"id": 3,
"options": {
"legend": {
"calcs": [
"logmin",
"max",
"mean",
"lastNotNull"
],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "SELECT time_bucket('$__interval', timestamp) AS time, \nvoltage_l1 AS \"Spanning L1\", \nvoltage_l2 AS \"Spanning L2\", \nvoltage_l3 AS \"Spanning L3\"\nFROM p1\nWHERE timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz",
"refId": "A",
"sql": {
"columns": [
{
"parameters": [],
"type": "function"
}
],
"groupBy": [
{
"property": {
"type": "string"
},
"type": "groupBy"
}
],
"limit": 50
},
"table": "p1"
}
],
"title": "Spanning",
"type": "timeseries"
},
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"description": "Hoofdaansluiting: 3*25A",
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 0,
"gradientMode": "none",
"hideFrom": {
"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "linear",
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
},
"showPoints": "auto",
"spanNulls": false,
"stacking": {
"group": "A",
"mode": "none"
},
"thresholdsStyle": {
"mode": "off"
}
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "amp"
},
"overrides": []
},
"gridPos": {
"h": 9,
"w": 12,
"x": 12,
"y": 10
},
"id": 6,
"options": {
"legend": {
"calcs": [
"min",
"max",
"mean",
"lastNotNull"
],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "SELECT time_bucket('$__interval', timestamp) AS time, \ncurrent_l1 AS \"Vermogen L1\", \ncurrent_l2 AS \"Vermogen L2\", \ncurrent_l3 AS \"Vermogen L3\"\nFROM p1\nWHERE timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz",
"refId": "A",
"sql": {
"columns": [
{
"parameters": [],
"type": "function"
}
],
"groupBy": [
{
"property": {
"type": "string"
},
"type": "groupBy"
}
],
"limit": 50
},
"table": "p1"
}
],
"title": "Vermogen",
"type": "timeseries"
},
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 0,
"gradientMode": "none",
"hideFrom": {
"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "linear",
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
},
"showPoints": "auto",
"spanNulls": false,
"stacking": {
"group": "A",
"mode": "none"
},
"thresholdsStyle": {
"mode": "off"
}
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 19
},
"id": 7,
"options": {
"legend": {
"calcs": [
"firstNotNull",
"lastNotNull",
"range"
],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "SELECT time_bucket('$__interval', timestamp) AS time, \nfailures AS \"Stroomuitval\", \nlong_failures AS \"Langdurige stroomuitval\" \nFROM p1\nWHERE timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz",
"refId": "A",
"sql": {
"columns": [
{
"parameters": [],
"type": "function"
}
],
"groupBy": [
{
"property": {
"type": "string"
},
"type": "groupBy"
}
],
"limit": 50
}
}
],
"title": "Stroomuitval",
"type": "timeseries"
},
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"description": "1L = 1 dm^3 dus 1kL = 1m^3. \nRange = verbruik in geselecteerde periode.",
"fieldConfig": {
"defaults": {
"color": {
"fixedColor": "yellow",
"mode": "fixed"
},
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 50,
"gradientMode": "opacity",
"hideFrom": {
"legend": false,
"tooltip": false,
"viz": false
},
"insertNulls": false,
"lineInterpolation": "stepAfter",
"lineStyle": {
"fill": "solid"
},
"lineWidth": 1,
"pointSize": 5,
"scaleDistribution": {
"type": "linear"
},
"showPoints": "auto",
"spanNulls": false,
"stacking": {
"group": "A",
"mode": "none"
},
"thresholdsStyle": {
"mode": "off"
}
},
"fieldMinMax": false,
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "litre"
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 19
},
"id": 5,
"options": {
"legend": {
"calcs": [
"firstNotNull",
"lastNotNull",
"range"
],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "${DS_P1}"
},
"editorMode": "code",
"format": "table",
"rawQuery": true,
"rawSql": "SELECT time_bucket('$__interval', timestamp) AS time, \ngas AS \"Gasverbruik\"\nFROM p1\nWHERE timestamp >= $__timeFrom()::timestamptz AND timestamp < $__timeTo()::timestamptz AND gas IS NOT NULL",
"refId": "A",
"sql": {
"columns": [
{
"parameters": [],
"type": "function"
}
],
"groupBy": [
{
"property": {
"type": "string"
},
"type": "groupBy"
}
],
"limit": 50
}
}
],
"title": "Gasverbruik",
"type": "timeseries"
}
],
"refresh": "5s",
"schemaVersion": 39,
"tags": [],
"templating": {
"list": []
},
"time": {
"from": "now/d",
"to": "now"
},
"timepicker": {},
"timezone": "",
"title": "P1 metergegevens",
"uid": "cf296851-06f4-4479-9d5e-2bf85b56f69b",
"version": 65,
"weekStart": ""
}

382
main.go
View file

@ -1,34 +1,26 @@
// TODO: Process p1/online status.
// TODO: Add health check endpoint.
// TODO: Add multiple P1 monitoring capabilities
// TODO: Make TimescaleDB optional.
package main
import (
"database/sql"
"encoding/json"
"fmt"
"io/fs"
"log"
"log/slog"
"os"
"strconv"
"time"
_ "time/tzdata"
mqtt "github.com/eclipse/paho.mqtt.golang"
"github.com/joho/godotenv"
_ "github.com/lib/pq"
"github.com/pressly/goose/v3"
"git.hollander.online/energy/p1-logger/migrations"
)
// Payload struct
//
// All metrics are stored in PostgreSQL as INT and not NUMERIC or FLOAT to optimise their storage size.
//
// Dt1, Dt2, Rt1, Rt2, G, F and Fl are cumulative meter readings.
// Therefore, they function as counters that can only go up.
// Dt1, Dt2, Rt1, Rt2 and G are cumulative meter readings.
// By making them pointers to int, they can be set to 'nil' when the reading has not changed.
// This way, they are logged as NULL in the database when no change has happened, saving storage capacity.
// As an added benefit, this also make data retrieval, visualisation and analysis more light-weight.
@ -36,11 +28,14 @@ import (
// Gas consumption is updated once per minute.
// Not saving intermittent values theoretically saves 4 bytes per value.
//
// An average month has 43 829.0639 minutes.
// 4*43829,0639 = 175,316.26 bytes = 0.18 MB
//
// In practice, storage will be even lower when gas is not being consumed continuously,
// as a new metric won't be available for every minute.
// Storage for non-NULL values every second:
// 86,400entries/day×4bytes/entry=345,600bytes/day86,400entries/day×4bytes/entry=345,600bytes/day
// Storage for non-NULL values every minute:
// 1,440entries/day×4bytes/entry=5,760bytes/day1,440entries/day×4bytes/entry=5,760bytes/day
// Storage savings:
// 345,600bytes/day5,760bytes/day=339,840bytes/day345,600bytes/day5,760bytes/day=339,840bytes/day
// (about 331.5 KB / day or 9.72 MB / month)
// In practice, savings will be even higher when gas is not being consumed continuously.
//
// When Tariff 1 is active, Tariff 2 isn't.
// When energy is being imported, it is not being returned.
@ -55,57 +50,16 @@ import (
// In addition, many meters only update these metrics once every 10 seconds,
// meaning even more storage capacity is saved:
// 10.52 / 10 * 9 = 9,468 MB.
//
// For D1-3 and R1-3, either Dx or Rx will be active.
// Therefore, their storage requirements can be sliced in half, saving 3 * 10.52 = 42.08 MB
// This is different for D and R, as these contain the sum of each phase and are reported simultaneously.
//
// Not saving failures when there is no change, will save around 10.52MB per month per metric, so an additional 21.04MB
// Theoretical storage requirements for a DSMR5 meter with metrics emitted every second:
//
// Column Column size (bytes) Per month (MB) X Total (MB)
// ---------------------------------------------------------------------------
// Timestamp 8 bytes 021.04
// Dt1, Dt2, Rt1, Rt2 4 bytes 001.05
// D, R 4 bytes 010.52
// R 4 bytes 010.52
// F 4 bytes 000.00
// Fl 4 bytes 000.00
// G 4 bytes 000.18
// V1-3, C1-3 4 bytes 010.52 6 063.12
// D1-3, R1-3 4 bytes 010.52 3 031.56
// ---------------------------------------------------------------------------
// Total 137.99
//
// Compared to no optimisations:
//
// Column Column size (bytes) Per month (MB) X Total (MB)
// ---------------------------------------------------------------------------
// Timestamps 8 bytes 21.04
// Values 4 bytes 10.52 21 220.92
// ---------------------------------------------------------------------------
// Total 241.96
//
// Conclusion:
// At the expense of having to create more complicated queries for analysis and visualisation,
// the optimisations save at least 103.97 MB or 1-137.99/241.96 = 43%
// in uncompressed storage space per month.
type Payload struct {
T string `json:"t"` // Timestamp
Dt1 *int `json:"dt1"` // Delivered / imported meter reading tariff 1 (kWh)
Dt2 *int `json:"dt2"` // Delivered / imported tariff 2 (kWh)
Rt1 *int `json:"rt1"` // Returned / exported tariff 1 (kWh)
Rt2 *int `json:"rt2"` // Returned / exported tariff 2 (kWh)
D *int `json:"d"` // Delivering / importing (W)
R *int `json:"r"` // Returning / exporting (W)
F *int `json:"f"` // Failure (counter)
Fl *int `json:"fl"` // Failure long duration (counter)
Sa1 *int `json:"sa1"` // Number of voltage sags L1
Sa2 *int `json:"sa2"` // Number of voltage sags L2
Sa3 *int `json:"sa3"` // Number of voltage sags L3
Sw1 *int `json:"sw1"` // Number of voltage swells L1
Sw2 *int `json:"sw2"` // Number of voltage swells L1
Sw3 *int `json:"sw3"` // Number of voltage swells L1
D int `json:"d"` // Delivering / importing (W)
R int `json:"r"` // Returning / exporting (W)
F int `json:"f"` // Failure (counter)
Fl int `json:"fl"` // Failure long duration (counter)
G *int `json:"g"` // Gas meter reading (l)
V1 int `json:"v1"` // Voltage L1 (V)
V2 int `json:"v2"` // Voltage L2 (V)
@ -113,107 +67,25 @@ type Payload struct {
C1 int `json:"c1"` // Current L1 (A)
C2 int `json:"c2"` // Current L2 (A)
C3 int `json:"c3"` // Current L3 (A)
D1 *int `json:"d1"` // Delivering / importing L1 (W)
D2 *int `json:"d2"` // Delivering / importing L2 (W)
D3 *int `json:"d3"` // Delivering / importing L3 (W)
R1 *int `json:"r1"` // Returning / exporting L1 (W)
R2 *int `json:"r2"` // Returning / exporting L2 (W)
R3 *int `json:"r3"` // Returning / exporting L3 (W)
GBe *int `json:"gbe"` // Gas meter reading (l) (Belgium)
CAQDBe *int `json:"aeicad"` // Current Average Quarterly Demand for Peak Tariff (Belgium)
CMMQDBe *int `json:"cmmqd"` // Current Months Maximum Quarterly Demand for Peak Tarrif (Belgium)
TMMQDBe *int `json:"13mmqd"` // 13 Month Maximum Quarterly Demand for Peak Tarrif (Belgium).
DLu *int `json:"dlu"` // Energy Delivered (Luxembourg)
RLu *int `json:"rlu"` // Energy Returned (Luxembourg)
}
type Config struct {
MQTTBroker string `json:"mqtt_broker"`
MQTTTopic string `json:"mqtt_topic"`
MQTTUser string `json:"mqtt_user"`
MQTTPassword string `json:"mqtt_password"`
DB string `json:"db"`
TimescaleDB bool `json:"timescaledb"`
LogLevel string `json:"log_level"`
TZ string `json:"timezone"`
D1 int `json:"d1"` // Delivering / importing L1 (W)
D2 int `json:"d2"` // Delivering / importing L2 (W)
D3 int `json:"d3"` // Delivering / importing L3 (W)
R1 int `json:"r1"` // Returning / exporting L1 (W)
R2 int `json:"r2"` // Returning / exporting L2 (W)
R3 int `json:"r3"` // Returning / exporting L3 (W)
}
var db *sql.DB
var logger = slog.New(slog.NewJSONHandler(os.Stdout, nil))
var config Config
func loadConfig() Config {
configFilePath := os.Getenv("CONFIG_FILE")
if configFilePath == "" {
configFilePath = "/data/options.json"
}
data, err := os.ReadFile(configFilePath)
if err == nil {
// Successfully read the file, parse the JSON
err = json.Unmarshal(data, &config)
if err != nil {
log.Fatalf("Error parsing config file: %v", err)
}
} else {
// Load environment variables from .env file if it exists
if err := godotenv.Load(); err != nil {
logger.Info("No .env file found or error loading .env file (ignore this message when using container)", "error", err)
}
// Fallback to environment variables
config.MQTTBroker = os.Getenv("MQTT_BROKER")
if config.MQTTBroker == "" {
log.Fatal("MQTT_BROKER environment variable is not set.")
}
config.MQTTTopic = os.Getenv("MQTT_TOPIC")
if config.MQTTTopic == "" {
log.Fatal("MQTT_TOPIC environment variable is not set.")
}
config.MQTTUser = os.Getenv("MQTT_USERNAME")
if config.MQTTUser == "" {
log.Fatal("MQTT_USERNAME environment variable is not set.")
}
config.MQTTPassword = os.Getenv("MQTT_PASSWORD")
if config.MQTTPassword == "" {
log.Fatal("MQTT_PASSWORD environment variable is not set.")
}
config.DB = os.Getenv("PG_DB")
if config.DB == "" {
log.Fatal("PG_DB environment variable is not set.")
}
timescaleDBStr := os.Getenv("TIMESCALEDB_ENABLED")
if timescaleDBStr != "" {
timescaleDB, err := strconv.ParseBool(timescaleDBStr)
if err != nil {
log.Fatalf("Error parsing TIMESCALEDB_ENABLED: %v", err)
}
config.TimescaleDB = timescaleDB
}
config.LogLevel = os.Getenv("LOG_LEVEL")
if config.DB == "" {
log.Fatal("LOG_LEVEL environment variable is not set.")
}
config.TZ = os.Getenv("TZ")
if config.DB == "" {
log.Fatal("TZ environment variable is not set.")
}
}
return config
}
func main() {
// Initial logger setup
slog.SetDefault(logger)
loadConfig()
// Load environment variables from .env file if it exists
if err := godotenv.Load(); err != nil {
logger.Info("No .env file found or error loading .env file (ignore this message when using container)", "error", err)
}
// Update the logger based on the LOG_LEVEL environment variable
logLevel := getLogLevelFromEnv(slog.LevelInfo) // Default to info level
@ -223,22 +95,22 @@ func main() {
logger.Info("Logger initialized with dynamic log level")
// Connect to PostgreSQL
pgConnStr := config.DB
pgConnStr := os.Getenv("PG_DB")
if err := connectToPostgreSQL(pgConnStr); err != nil {
log.Fatal("Error connecting to PostgreSQL", "error", err)
}
// Initialize MQTT options
opts := mqtt.NewClientOptions()
opts.AddBroker(config.MQTTBroker)
opts.SetUsername(config.MQTTUser)
opts.SetPassword(config.MQTTPassword)
opts.AddBroker(os.Getenv("MQTT_BROKER"))
opts.SetUsername(os.Getenv("MQTT_USERNAME"))
opts.SetPassword(os.Getenv("MQTT_PASSWORD"))
opts.SetAutoReconnect(true)
opts.SetConnectionLostHandler(func(client mqtt.Client, err error) {
logger.Error("Connection lost", "error", err)
})
opts.SetOnConnectHandler(func(client mqtt.Client) {
topic := config.MQTTTopic
topic := os.Getenv("MQTT_TOPIC")
logger.Info("Connected to MQTT broker, subscribing to topic...", "topic", topic)
if token := client.Subscribe(topic, 0, mqttMessageHandler); token.Wait() && token.Error() != nil {
logger.Error("Error subscribing to MQTT topic", "topic", topic, "error", token.Error())
@ -257,7 +129,7 @@ func main() {
// Helper function to map environment variable to slog.Level
func getLogLevelFromEnv(defaultLevel slog.Level) slog.Level {
logLevelStr := config.LogLevel
logLevelStr := os.Getenv("LOG_LEVEL")
switch logLevelStr {
case "DEBUG":
return slog.LevelDebug
@ -280,7 +152,6 @@ func createLoggerWithLevel(level slog.Level) *slog.Logger {
}
// updateFieldIfChanged ensures that meter readings that haven't been updated aren't written to the database, in order to save storage space.
// If they haven't changed, they are set to nil, meaning they will be inserted as NULL into the database.
func updateFieldIfChanged(currentValue *int, previousValue *int) (*int, bool) {
if currentValue != nil && *currentValue == *previousValue {
return nil, false // No change
@ -301,12 +172,7 @@ func safeDerefInt(ptr *int) string {
return "nil" // Return a string indicating the value is nil
}
var prevDt1, prevDt2, prevRt1, prevRt2, prevG, prevF, prevFl int
var prevSa1, prevSa2, prevSa3, prevSw1, prevSw2, prevSw3 int
var prevD, prevR int
var prevD1, prevD2, prevD3, prevR1, prevR2, prevR3 int
var prevGBe, prevCAQDBe, prevCMMQDBe, prevTMMQDBe int
var prevDLu, prevRLu int
var prevDt1, prevDt2, prevRt1, prevRt2, prevG int
func mqttMessageHandler(client mqtt.Client, msg mqtt.Message) {
// Parse JSON payload
@ -328,7 +194,6 @@ func mqttMessageHandler(client mqtt.Client, msg mqtt.Message) {
// Update each field, directly updating `changed` if any change is detected
var tempChanged bool // Used to capture the change status for each field
// Electricity meter readings
payload.Dt1, tempChanged = updateFieldIfChanged(payload.Dt1, &prevDt1)
changed = changed || tempChanged
@ -341,71 +206,9 @@ func mqttMessageHandler(client mqtt.Client, msg mqtt.Message) {
payload.Rt2, tempChanged = updateFieldIfChanged(payload.Rt2, &prevRt2)
changed = changed || tempChanged
// Faults
payload.F, tempChanged = updateFieldIfChanged(payload.F, &prevF)
changed = changed || tempChanged
payload.Fl, tempChanged = updateFieldIfChanged(payload.Fl, &prevFl)
changed = changed || tempChanged
// Sags
payload.Sa1, tempChanged = updateFieldIfChanged(payload.Sa1, &prevSa1)
changed = changed || tempChanged
payload.Sa2, tempChanged = updateFieldIfChanged(payload.Sa2, &prevSa2)
changed = changed || tempChanged
payload.Sa3, tempChanged = updateFieldIfChanged(payload.Sa3, &prevSa3)
changed = changed || tempChanged
// Swells
payload.Sw1, tempChanged = updateFieldIfChanged(payload.Sw1, &prevSw1)
changed = changed || tempChanged
payload.Sw2, tempChanged = updateFieldIfChanged(payload.Sw2, &prevSw2)
changed = changed || tempChanged
payload.Sw3, tempChanged = updateFieldIfChanged(payload.Sw3, &prevSw3)
changed = changed || tempChanged
// Gas
payload.G, tempChanged = updateFieldIfChanged(payload.G, &prevG)
changed = changed || tempChanged
// D, R
payload.D, tempChanged = updateFieldIfChanged(payload.D, &prevD)
changed = changed || tempChanged
payload.R, tempChanged = updateFieldIfChanged(payload.R, &prevR)
changed = changed || tempChanged
// D1-3
payload.D1, tempChanged = updateFieldIfChanged(payload.D1, &prevD1)
changed = changed || tempChanged
payload.D2, tempChanged = updateFieldIfChanged(payload.D2, &prevD2)
changed = changed || tempChanged
payload.D3, tempChanged = updateFieldIfChanged(payload.D3, &prevD3)
changed = changed || tempChanged
// R1-3
payload.R1, tempChanged = updateFieldIfChanged(payload.R1, &prevR1)
changed = changed || tempChanged
payload.R2, tempChanged = updateFieldIfChanged(payload.R2, &prevR2)
changed = changed || tempChanged
payload.R3, tempChanged = updateFieldIfChanged(payload.R3, &prevR3)
changed = changed || tempChanged
// Belgium
payload.GBe, tempChanged = updateFieldIfChanged(payload.GBe, &prevGBe)
changed = changed || tempChanged
payload.CAQDBe, tempChanged = updateFieldIfChanged(payload.CAQDBe, &prevCAQDBe)
changed = changed || tempChanged
payload.CMMQDBe, tempChanged = updateFieldIfChanged(payload.CMMQDBe, &prevCMMQDBe)
changed = changed || tempChanged
payload.TMMQDBe, tempChanged = updateFieldIfChanged(payload.TMMQDBe, &prevTMMQDBe)
changed = changed || tempChanged
// Luxembourg
payload.DLu, tempChanged = updateFieldIfChanged(payload.DLu, &prevDLu)
changed = changed || tempChanged
payload.RLu, tempChanged = updateFieldIfChanged(payload.RLu, &prevRLu)
changed = changed || tempChanged
// If any value has changed, log all the relevant values
if changed {
logger.Debug("Values changed",
@ -413,39 +216,7 @@ func mqttMessageHandler(client mqtt.Client, msg mqtt.Message) {
"dt2", safeDerefInt(payload.Dt2),
"rt1", safeDerefInt(payload.Rt1),
"rt2", safeDerefInt(payload.Rt2),
"d", safeDerefInt(payload.D),
"r", safeDerefInt(payload.R),
"f", safeDerefInt(payload.F),
"fl", safeDerefInt(payload.Fl),
"sa1", safeDerefInt(payload.Sa1),
"sa2", safeDerefInt(payload.Sa2),
"sa3", safeDerefInt(payload.Sa3),
"sw1", safeDerefInt(payload.Sw1),
"sw2", safeDerefInt(payload.Sw2),
"sw3", safeDerefInt(payload.Sw3),
"g", safeDerefInt(payload.G),
"d1", safeDerefInt(payload.D1),
"d2", safeDerefInt(payload.D2),
"d3", safeDerefInt(payload.D3),
"r1", safeDerefInt(payload.R1),
"r2", safeDerefInt(payload.R2),
"r3", safeDerefInt(payload.R3),
"gbe", safeDerefInt(payload.GBe),
"caqdbe", safeDerefInt(payload.CAQDBe),
"cmmqdbe", safeDerefInt(payload.CMMQDBe),
"tmmqdbe", safeDerefInt(payload.TMMQDBe),
"dlu", safeDerefInt(payload.DLu),
"rlu", safeDerefInt(payload.RLu),
)
"g", safeDerefInt(payload.G))
}
// Insert data into PostgreSQL
err = insertData(timestamp, payload)
@ -471,17 +242,7 @@ func mqttMessageHandler(client mqtt.Client, msg mqtt.Message) {
"d3", payload.D3,
"r1", payload.R1,
"r2", payload.R2,
"r3", payload.R3,
"gbe", payload.GBe,
"caqdbe", payload.CAQDBe,
"cmmqdbe", payload.CMMQDBe,
"tmmqdbe", payload.TMMQDBe,
"dlu", payload.DLu,
"rlu", payload.RLu,
)
"r3", payload.R3)
if err != nil {
logger.Error("Error inserting data into PostgreSQL", "error", err)
}
@ -518,16 +279,12 @@ func insertData(timestamp time.Time, payload Payload) error {
stmt := `
INSERT INTO p1 (
timestamp, delivered_tariff1, delivered_tariff2, returned_tariff1, returned_tariff2,
delivery_all, returning_all,
failures, long_failures,
sags_l1, sags_l2, sags_l3,
swells_l1, swells_l2, swells_l3,
gas,
delivery_all, returning_all, failures, long_failures, gas,
voltage_l1, voltage_l2, voltage_l3,
current_l1, current_l2, current_l3,
delivery_l1, delivery_l2, delivery_l3,
returning_l1, returning_l2, returning_l3
) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24, $25, $26, $27, $28)
) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22)
`
_, err := db.Exec(
stmt,
@ -536,8 +293,6 @@ func insertData(timestamp time.Time, payload Payload) error {
payload.Rt1, payload.Rt2,
payload.D, payload.R,
payload.F, payload.Fl,
payload.Sa1, payload.Sa2, payload.Sa3,
payload.Sw1, payload.Sw2, payload.Sw3,
payload.G,
payload.V1, payload.V2, payload.V3,
payload.C1, payload.C2, payload.C3,
@ -560,48 +315,45 @@ func connectToPostgreSQL(pgConnStr string) error {
time.Sleep(5 * time.Second) // Retry after 5 seconds
}
// Perform DB migrations
err = migrateFS(db, migrations.FS, ".")
if err != nil {
log.Fatal(err)
}
if config.TimescaleDB {
// Enable TimescaleDB
_, err = db.Exec(`
SELECT create_hypertable('p1', 'timestamp', if_not_exists => TRUE, migrate_data => TRUE);
CREATE EXTENSION IF NOT EXISTS timescaledb;
`)
if err != nil {
log.Fatal("Error creating TimescaleDB hypertable:", err)
log.Fatal("Error creating TimescaleDB extension:", err)
}
// Create table if not exists
_, err = db.Exec(`
CREATE TABLE IF NOT EXISTS p1 (
timestamp TIMESTAMPTZ,
delivered_tariff1 INT,
delivered_tariff2 INT,
returned_tariff1 INT,
returned_tariff2 INT,
delivery_all INT,
returning_all INT,
failures INT,
long_failures INT,
gas INT,
voltage_l1 INT,
voltage_l2 INT,
voltage_l3 INT,
current_l1 INT,
current_l2 INT,
current_l3 INT,
delivery_l1 INT,
delivery_l2 INT,
delivery_l3 INT,
returning_l1 INT,
returning_l2 INT,
returning_l3 INT
);
SELECT create_hypertable('p1', 'timestamp', if_not_exists => TRUE);
`)
if err != nil {
log.Fatal("Error creating table:", err)
}
return nil
}
func migrate(db *sql.DB, dir string) error {
err := goose.SetDialect("postgres")
if err != nil {
return fmt.Errorf("migrate: %w", err)
}
err = goose.Up(db, dir)
if err != nil {
return fmt.Errorf("migrate: %w", err)
}
return nil
}
func migrateFS(db *sql.DB, migrationFS fs.FS, dir string) error {
// In case the dir is an empty string, they probably meant the current directory and goose wants a period for that.
if dir == "" {
dir = "."
}
goose.SetBaseFS(migrationFS)
defer func() {
// Ensure that we remove the FS on the off chance some other part of our app uses goose for migrations and doesn't want to use our FS.
goose.SetBaseFS(nil)
}()
return migrate(db, dir)
}

View file

@ -1,33 +0,0 @@
-- +goose Up
-- +goose StatementBegin
CREATE TABLE IF NOT EXISTS p1 (
timestamp TIMESTAMPTZ,
delivered_tariff1 INT,
delivered_tariff2 INT,
returned_tariff1 INT,
returned_tariff2 INT,
delivery_all INT,
returning_all INT,
failures INT,
long_failures INT,
sags_l1 INT,
sags_l2 INT,
sags_l3 INT,
swells_l1 INT,
swells_l2 INT,
swells_l3 INT,
gas INT,
voltage_l1 INT,
voltage_l2 INT,
voltage_l3 INT,
current_l1 INT,
current_l2 INT,
current_l3 INT,
delivery_l1 INT,
delivery_l2 INT,
delivery_l3 INT,
returning_l1 INT,
returning_l2 INT,
returning_l3 INT
);
-- +goose StatementEnd

View file

@ -1,6 +0,0 @@
package migrations
import "embed"
//go:embed *.sql
var FS embed.FS

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