This tutorial will see how we can interface the Hall effect sensor with Arduino. The module we are going to use can be operated in either analog mode or digital output mode. We will monitor the module ...

OFF: Water detected. Open the Serial Monitor in the Arduino IDE (set to 9600 baud) to view the water detection status and sensor readings. Threshold Value: Adjust THRESHOLD to match the sensor's ...

Using a 5V RS485 soil NPK sensor, a Max485 RS485 converter module, and a 20x4 LCD display, the system-which is based on the Arduino Nano platform-monitor nitrogen, phosphorus, and potassium levels in ...

Phosphorus and Potassium (NPK) which consists of an optical sensor. The optical sensor is developed with two systems which are transmission system and detection system. The transmission system uses ...