Small project to log CO2, temperatur and humidity at home. The data is sent with MQTT and stored in an InfluxDB. The collected data will be displayed with grafana.
NodeMCU v3 ESP8266:
https://www.az-delivery.de/products/nodemcu-lolin-v3-modul-mit-esp8266
The case is designed for this particular model.
HTU21D Temperature and Humidity Sensor Module:
https://www.az-delivery.de/products/gy-21-temperatur-sensor-modul
0.96 Zoll OLED:
https://www.az-delivery.de/products/0-96zolldisplay
MH-Z19B CO2 Sensor:
https://www.roboter-bausatz.de/p/mh-z19b-ndir-co2-kohlendioxid-sensor-modul-infrarot?number=RBS13304&sPartner=7