Co2 Carbon Dioxide Esp8266 logger
This case encloses the following:
- esp8266 nodemcu v0.9 board
- mh-z14a co2 sensor, 0-5000 ppm range
- micro sd card
- digital humidity and temperature sensor
- 18650 lithium ion battery
- micro usb battery charger board
- power switch
- 1.44' oled 128*128 screen