N29
N29 is a ATtiny84 based PCB with either a temperature/humidity sensor or a CO2 sensor. It also contains a motion detector and a Photo-LED/transistor for light measurement.
Overview
- Role: Air quality and climate sensors
- MCU: AtTiny84
- Connection: RJ45
- COM: COM2W
- Predecessor: N27, N24, N23, N19
- Periphery:
- PIR sensor (AMN31112)
- TWI interface
- SI7021 temperature and humidity sensor or
- SGP-30/40 air quality sensor
- Photo LED
Schematic
PCB Front
PCB Back
