In my home automation system I need to send alarms and events via SMS to my mobile number because an internet connection is not stable and may absent on power loss. Therefore I’ve purchased a compact board with the SIM900 chipset.
DHT-22 sensor on Banana Pi BPI-M2U
I need to connect the DHT22 temperature and humidity sensor to BPi. Obviously, the kernel does not include the corresponding kernel module, but this module exists in sequent releases.
I’ve found and tried this user-mode C code (dht22). It uses the WiringPi library and can be compiled on Banana Pi BPI-M2U.
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