Raspberry Pi Pico Projects

HC-SR04 Ultrasonic Distance Sensor With Raspberry Pi Pico Tutorial

In this tutorial, I will show you how to interface Ultrasonic Distance Sensor With Raspberry Pi Pico. The HC-SR04 ultrasonic distance sensor is an excellent addition to any Raspberry Pi Pico-based project. This sensor can be used to measure the distance between the sensor and an object and can be used in projects such as detecting when someone is close to the sensor or measuring the height of an object.


ultrasonic sensors, ssd1306 OLEd, Raspberry pi pico

  • Raspberry Pi Pico
  • USB cable
  • HC- SR04 Ultrasonic Sensor
  • jumper wires

What is Ultrasonic Sensor?

HC_SR04 ultrasonic sensor working

An ultrasonic sensor is a device that uses sound waves to measure distance. It works by sending out a sound wave and then measuring how long it takes for the wave to bounce back. The sensor can then use this information to calculate the distance to the object. Ultrasonic sensors are used in a variety of applications, including automotive safety systems, security systems, and industrial automation.

What is Raspberry Pi Pico ?

Getting Started With Raspberry Pi Pico With Thonny IDE

The Raspberry Pi Pico is a microcontroller board based on the RP2040 chip developed by Raspberry Pi. It was announced in January 2021. The Pico is similar to other microcontroller boards, such as the Arduino, but it has a unique feature: it can be programmed using the Python programming language. This makes it a great board for beginners who want to learn to program in Python.

The Pico is a great board for projects that need a small, inexpensive microcontroller. It is also a great board for learning to program in Python.

Schematic diagram – Ultrasonic Distance Sensor With Raspberry Pi Pico

The most common way is to use the Raspberrypi pico board and an ultrasonic sensor module. The module has three pins: VCC, GND, and Echo.Ultrasonic Distance Sensor With Raspberry Pi Pico

The SSD1306 Oled display module connections with Raspberry Pi Pico SCL and SDA pins of the SSD1306 Oled Display module are connected with GP17 and GP16 pins of the Pico Board.

  • The VCC pin is connected with the VBus which is Pin40 of the Raspberry Pi Pico.
  • The trigger pin is connected with GP3.
  • The echo pin is connected with GP2
  • The GND pin of the ultrasonic sensor is connected with the GND pin of the Raspberry Pi Pico board.

Programming – Ultrasonic Distance Sensor With Raspberry Pi Pico


After the Upload code, You will see that the OLED Start Reading on Display.

Distance measures With ultrasonic sensor, ssd1306 and Raspberry pi pico

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