To build your very own IoT rain checking system, you will need a Raspberry Pi 3 Model B, a DHT11 Temperature & Humidity Sensor (4 pins), and a raindrop sensing board, which can be purchased for ...

The Raspberry Pi weather station uses two sensors in the form of the DHT11 Humiture sensor and the BMP280 Barometer, code has been modified from the Sunfounder’s GitHub repository.