Introduction: Easy Ultrasonic Sensor Siren
- Ultrasonic sensor
- Pezo (I used a big one)
- Some wires
OK, lets begin.
Step 1: Connect the Ultrasonic Sensor and Pezo
Trig pin to pin 4, echo pin to pin 3 and pezo positive pin to pin 12.
Step 2: Code
Download the code form here:
Step 3: Finished
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Please be positive and constructive.