Components required

• Arduino Nano board
• 1 Resistor
• 1 LED
• Robocraze active buzzer
• HC SR04 Ultrasonic sensor
• 1 9V battery
• Breadboard and jumper cables

Software requirements

• Arduino IDE

Usage

1. Connect the components as shown in the circuit below.
2. Using Arduino IDE, upload the code from code to Arduino Nano board.
3. Power the device using the 9V battery.

Circuit

Project Demo