Interface an TFA Dostmann CO2 Monitor with ESP8266 (in our example a WEMOS D1 Mini) to connect it to the "Internet of Things". It publishes the CO2 measurement and temperature to a configures MQTT topic.
- Rename settings.h.example to settings.h
- Open up your arduino IDE
- Configure your OTA, Wifi, MQTT Topics in the settings.h file
- Upload the compiled result to your Wemos D1 Mini
Don't use D4 and D3, because it causes power-on issues with wemos d1 mini: https://www.forward.com.au/pfod/ESP8266/GPIOpins/index.html