Burglar Alarm in a Coin Bank Rabbit Using Arduino

Coin bank Rabbit equipped with Ultrasonic Distance Sensor.

Download our FREE Arduino Project Code

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Prepare All the Components


Requirements:

HC-SR04 Ultrasonic Sensor
4N35 Optocoupler
Arduino Uno
LED

Step 2: Build the Circuit

Construct the circuit as shown.

Step 3: Add the Ultrasonic Sensor

Connect the following:

VCC to arduino 5v
GND to arduino GND
Echo to Arduino pin 3
Trig to Arduino pin 2

Step 4: Add Optocoupler

The sound is optional if you have a separate project kit.
Use the Optocoupler and connect to Pin 4 of Arduino Uno.

Step 5: The Coin Rabbit

Install all LEDs inside the Coin rabbit's eyes & hands.
Also, the Ultrasonic distance sensor.

Step 6: Test the Project

Test the sensor.
Supply 9 volts battery of from Power Digital Supply to your Arduino.

Microcontroller Contest

Participated in the
Microcontroller Contest

Be the First to Share

    Recommendations

    • Assistive Tech Contest

      Assistive Tech Contest
    • Reuse Contest

      Reuse Contest
    • Made with Math Contest

      Made with Math Contest

    Discussions