The Mini Rain Car Wiper project is a fun Arduino build that simulates automatic car wipers. It uses an Arduino Uno, two servo motors, and a rain sensor. When the sensor detects water, the servos sweep back and forth to mimic real wiper blades. This makes the project a practical and miniature version of an actual automotive system.
It’s quite similar to the Smart Laundry Bot project you built before. However, instead of moving a clothesline, this one moves wipers for a model car. The concept remains the same—detect rain and trigger movement automatically.
The rain sensor detects water droplets and sends a signal to the Arduino. The Arduino then moves both servo motors from a resting position to a sweeping angle and back. This motion copies how car wipers clear a windshield. When there is no rain, the servos stay at rest, ready for the next activation. You can adjust the wiping speed and range by changing the delays and angles in the code.
To assemble the project, connect the rain sensor’s output pin to a digital pin on the Arduino. Link its power and ground to the 5V and GND pins. Attach each servo to a separate digital pin and connect their power to 5V and GND. Mount the servos so they can move like wipers. Power up the Arduino, place water on the sensor, and watch the wipers move. This beginner-friendly project is a great way to learn about sensors, actuators, and automation.
Components:
This project uses the following parts: Rain Sensor, Mini Servo, Arduino Uno, 8-Slot Battery Holder, AA Batteries, USB Cable Type B, and Jumper Wires. These components work together to provide the sensing, control, power, and connections needed for the Mini Rain Car Wiper.
