The board is an Uno and has an SD card shield with a DHT22 temperature sensor plus a soil moisture sensor. A photo diode is also used to measure light.

The panels include a DHT22 temperature and humidity sensor, an LCD display, a keypad, and support electronics. This project was clearly well thought out, and includes a host of other small ...

In his continuing Pi adventures, Tom creates another edge device -- this one using a DHT22 sensor to monitor the humidity and temperature in a remote location.