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 project utilizes a Raspberry Pi 3 Model B mini PC, DHT11 Temperature & Humidity Sensor, SparkFun Soil Moisture Sensor, and a Photoresistor. It is classified as an easy project, making it ...

There are many low-cost humidity and temperature sensors that can be used with the RPi. The most popular ones are the DHT22 and the DHT11. Both sensors can be used to transmit their data using only ...

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.

The Pi can sink up to 16mA per pin if configured properly. Try that and see what happens. I normally order a few of each sensor so I can try with a different sensor if something is acting up, though.

Posted in home hacks Tagged data acquisition, dehumidifier, dht22, environmental, humidity, hvac, PiCam, raspberry pi, sensor ← The Comforting Blue Glow Of Old Time Radio ...