firmware master branch:
firmware beta branch:

The maintained main firmware for the Sensor.Community / Luftdaten.Info Sensor.

A transitional firmware which will look for a firmware file stored on SPIFFS to replace itself with for next reboot or do an endless loop of panic LED blinking if this fails.

This allows to do an Over-the-air (OTA) procedure on setups that have a 1M/3M split layout (rather the more modern 2M/2M) for firmwares larger than 512k (up to ~ 740k).

• BeginnersGuide Beginners guide to ESP programming with Arduino code
• airrohr-.... currently used versions (2017-05-23+)
• airrohr-update-... currently used for OTA (2019-08-30+)
• apiclients clients for the dusti API and other APIs
• arduino native arduino code
• esp8266-lua nodemcu firmware code, lua scripts (not maintained after change to arduino)
• esp8266-arduino programming esp8266 with arduino code/IDE
• r-scripts sensor data analysis with R
• schematics frizzing schematics (not updated, 2016-03-01)

The development is done in the beta branch.