By connecting the board to a small pump, you can use the controller ... components: an Arduino controller, a temperature and humidity sensor, an air quality sensor, and an LED display.

The Raspberry Pi is a credit card-sized computer capable of running full-fledged Linux distributions such as Raspberry Pi OS, ...

of the Arduino. Here is the test code that indicates the soil wet/dry conditions using just two LEDs (green & red). int GLED= 13; // Wet Indicator at Digital PIN D13 int RLED= 12; // Dry Indicator at ...

All of these projects either use ... an Arduino project to help you out with that — this gesture-controlled system for VLC. It features two ultrasonic sensors mounted on your computer's display ...

(Video, embedded below.) The build runs on an nRF52811 microcontroller, hooked up to a 1.02″ ePaper display sourced for just $7. A SHT20 temperature and humidity sensor is then queried to sample ...