- ChipCap 2 (CC2D33) instead of DHT12
Code: https://github.com/liutyi/arduino-humidity-sensors-test/tree/v8b
Main Unit
Sensor Board
incl levels converter board
Sensors
Total Sensor cost: ~630$
Known Issues
- AHT10 and AHT15 occupy multiplexer (unknown compatibility issues when on same i2c bus with other sensors)
- 1-st and 8-th multiplexers addresses occupied by sensors. so multiplexer limits reached.
- CJMCU-189 (SHTC1) unstable on 3.3v multiplexers, and also hangs on below zero temperatures (on 5v i2c bus)
- CC2D33 got thin 1.27 pins (and need pin replace or soldering for secure connect
Power Consumption
USB Type-A (Arduino): 1.0W Main Unit. 1.16W Main unit with Sensor Board
USB Type-C (Battery charging circuit): ~1.54W Main Unit, 1.64W Main unit with Sensor Board