A custom weather station may be a little complicated to set up, but it's a neat use case for my old Raspberry Pi ...

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 ...

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 ...

LINK IT ALL – THEN GET STEAMY Connect the humidity sensors to the Raspberry Pi. Link the Pi to the relay via the breakout board, and plug the Pi in through the USB cable.