In this experiment, we will learn to check distance in the serial monitor using ultrasonic.

Components Used: 

  • 1 x Arduino Uno ( You can use other boards also )
  • 5 x Jumper Wires M-M
  • 1 x Ultrasonic Sensor
  • 1 x Breadboard


  • The principle of ultrasonic distance measurement is the same as that of RADAR.
  • The Ultrasonic module has two Transducers, one for  Transmit & the other for Receive. Both are fixed on a single PCB with the control circuit so that it can be easily used in your Robo projects. Ultrasonic distance sensor provides precise, non-contact distance measurements from about 2 cm to 400cm. Ultrasound is a high-frequency sound of frequency 40 KHz (we can’t hear this frequency, but animals can).



  1. Take Breadboard.
  2. Fix the Ultrasonic onto the breadboard.
  3. now Connect the pins of ultrasonic sensor as follows:
  4. PIN 2 of Arduino to TRIG of Sensor module.
  5. PIN 3 of Arduino to ECHO of Sensor module.
  6. 5V of Arduino to Vcc of Sensor module.
  7. GND to GND.
  8. Connect Arduino to your Laptop/PC by USB Cable. ( we use A to B USB cable for Arduino which is also used in printers )
  9. Open Arduino IDE ( You can download it from here or you can use online platform Arduino Web editor )
  10. Type the code Below given.
  11. Check program and then upload it.