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 ...

This module allows you to measure environmental parameters of temperature and humidity using the DHT11 sensor. Additionally ... introduction to using physical computing with sensors on the Raspberry ...

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.

He decided to take an in-depth look at the DHT11 sensor; which you can get your hands on for under $3 if you know where to look. The four-pin device uses a 1-wire protocol. [Rajendra] discusses ...