Delay 1.5 second to read DHT22
Delay 1.5 second to read DHT22

DHT22 should wait 1 second after power up for stabilization, as its
datasheet said.

I used to add 2 milliseconds before each read, I thought the sensor need
some magic stable 2 milliseconds before each read...

redforks/thermostat,redforks/thermostat