A curated list of open technology projects to sustain a stable climate, energy supply, biodiversity and natural resources.

Home Assistant Glow

Makes a (not so) smart meter without a P1 port easily readable, reading the pulse LED that is always present in most cases and it works with ESPHome!

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Energy Systems - Building Energy Monitoring - Last synced: 26 Apr 2025 - Ranking: 10.0

OpenEVSE WiFi gateway

Uses an ESP8266 (ESP-12) which communicates with the OpenEVSE controller via serial utilizing the existing RAPI API serial interface.

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Consumption - Mobility and Transportation - Last synced: 26 Apr 2025 - Ranking: 7.4

airQualityMeter

Detects air particulate matter (PM - pm1, pm2.5, pm10) concentrations and sends data to an MQTT server.

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Natural Resources - Air Quality - Last synced: 26 Apr 2025 - Ranking: 3.1