Aim
The goal of this activity is to make a touchless doorbell using an Ultrasonic sensor.
Materials Required
- Arduino UNO R3 – 1
- Ultrasonic Sensor – 1
- Active Buzzer – 1
- Several Jumper Wires
- USB Cable -1
Wiring Diagram
Desired Outcome
When a person comes closer to the sensor, the buzzer will make a sound.
