Working Principle of ACS712 Current Sensor with Arduino The ACS712 sensor operates on the Hall-effect principle. When current flows through the input terminals (IP+ and IP-), it generates a magnetic ...

Interfacing IR Sensor Module with Arduino. Build Time: 2-4 hours. | Cost: $5-10. | Difficulty: suitable for beginners. What You'll Learn: You will learn to handle digital input/output, interface an IR ...

To work with the sensor we need to power the sensor first, for that we are using the 5V and GND pin of the Arduino UNO Board. As shown in the above arduino soil moisture sensor circuit diagram we have ...