58 lines
1.2 KiB
Markdown
58 lines
1.2 KiB
Markdown
# powermeter
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A simple Pyhton script to mesaure you electricity consumption using the LED on a electricity meter and a digital light sensor.
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You either can use InfluxDB to store the data or a built in Flask application.
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## Hardware setup
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- Raspberry Pi
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- Digital light sensor like this: https://www.berrybase.de/lichtsensor-mit-digitalem-ausgang
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Connect the light sensor to your Pi:
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```
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VCC: 5V
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DATA: GPIO 27
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GND: GND
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```
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## Software setup
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- Copy the `.env.example` to `.env` and change it to your needs.
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- Acivate at least InfluxDB (which I would recommend) or Flask output.
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Clone this repository and create a virtualenv within it:
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```
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git clone https://code.f2n.me/finn/powermeter.git
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cd powermeter
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virtualenv .
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pip install -r requirements.txt
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```
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## Developing (Flask app)
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For developing run this (you need to create database and user first):
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```
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export FLASK_ENV=development
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export APP_DEVELOPMENT_DATABASE_URI=postgres://username:passwort@hostname/database
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flask run
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```
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## Screenshots
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Node-RED usage example:
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Grafana Dashboard example (InfluxDB datasource):
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