Ultrasonic Distance Measure

A simple code to measure the distance using an arduino and ultrasonic sensor.

Materials

• Arduino Uno R3
• Ultrasonic module HC-SR04

Connections

• Vcc - 5v
• Trig - Pin 13
• Echo - Pin 12
• Gnd - Gnd

Instructions

1. Upload the code to the Arduino.
2. Open the Serial Monitor (ensure the baud rate is set to 9600).
3. The serial monitor will print the distance of an object from the sensor in centimeters.