Using latest developement version of LEDE Project from git
Kernel config rpi3: lede-project-kernel-config-rpi3.txt (rename it to .config and put it in lede main directory)
Differences between DHT11 and DHT22 are in accuracy of returned values. DHT11 works with interger values (example: 23 C) and DHT22 is more precise (23.6 C)
Pins connected (DHT22):
DHT22 - RPI3
=========
Data - GPIO4
Vcc - Vcc
Gnd - Gnd
Boot rpi3 image and then edit /boot/config.txt adding the following line:
dtoverlay=dht11,gpiopin=4
Save and exit and then reboot the rpi3
Under /sys/devices/platform/dht11@0/iio:device0/ you will find two files
in_temp_input
in_humidityrelative_input
By reading them you will get current values of the dht11/22 sensor.
