OpenGarage › Forums › Hardware Questions › Wemos D1 open garage with DHT22 temperature/humidity sensor › Reply To: Wemos D1 open garage with DHT22 temperature/humidity sensor
@heyhogen: DHT22 has higher accuracy than 11, though price-wise is also quite a bit more expensive. If humidity isn’t necessary, there are plenty of low-cost temperature sensors out there like MCP9700/9701, or even a thermistor — these are analog sensors that ESP can read through its analog A0 pin.
The current OG firmware (1.0.8) is compiled with ESP8266 core 2.3.0. I am not sure Gompka said make sure to select 2.2.0 — the only issue we’ve encountered in the past is that 2.3.0 by default uses QIO mode, which caused problems on some ESP8266 chips. But once we explicitly tell it (in the Makefile) to use DIO mode, it seems to be fine.