The goal is now to use a pre-wired rain sensor module with an Arduino. ... (hook up diagram) As usual, power up the Arduino from an external 9V DC power supply unit. The buzzer/relay driver circuit ...

Arduino Soil Moisture Sensor Circuit – Connection Diagram. Now that we have a complete understanding of how a Soil Moisture sensor works, we can connect all the required wires to the Arduino UNO board ...

Connect the rain sensor's analog output to the Arduino's A0 pin. Connect the VCC and GND of the rain sensor to the 5V and GND pins of the Arduino. Connect the positive terminal of the buzzer to ...

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 overcome these challenges, we have developed a rain and fog sensing automatic car wiper system using an Arduino microcontroller, rain sensor, DHT11 humidity sensor, and servo motor. This system ...