Assembly
The DHT22 will have three pins that you will need to connect to your Pi Zero WH: 5V, Ground, and data. The power pin on the DHT22 will be labeled ‘+’ or ‘5V’. Connect this to pin 2 (the top right pin, 5V) of the Pi Zero WH. The Ground pin on the DHT22 will be labeled ‘-’ or ‘Gnd’. Connect this to pin 6 (two pins below the 5V pin) on the Pi Zero WH. The remaining pin on the DHT22 is the data pin and will be labeled ‘out’ or ‘s’ or ‘data’. Connect this to one of the GPIO pins on the Zero WH such as GPIO4 (pin 7). Your connections should look like the following:
With the Pi Zero WH snapped into the case and the micro SD card inserted it will look like this:
