How to Connect the HC-SR04 Sensor to the Raspberry Pi Pico in MicroPython

In this tutorial, I quickly demonstrate how to set up the HC-SR04 distance sensor for distance measuring with the Raspberry Pi Pico. I am demonstrating this because it took me a while to find some code that works with 5V logic on the sensor. Note that if you have the 5V version of the sensor, which most people have, you can use it with the Pico but it may cause some damage over time. I have yet to see that in my applications but I would not test it unless you have more Picos lying around. There is a 3.3V version of the sensor which I will be selling soon on my Amazon store. If you still need the 5V version you can find it with the link here:

Amazon HC-SR04 with Metal Bracket

1-) Physical Setup:

Get four jumper wires and connect them as follows:

The main point here is that there is an Echo and a Trig pin corresponding to the Transmitter and the Receiver respectively. 

2-) Code Setup:

  • Copy the code snippet from the bottom of this link. Really want to thank this gentleman for simplifying this code without the need for external libraries. He deserves most of the credit here but it did take me some time to find this, as all of the other libraries did not work. 
  • If you have the physical setup and your Raspberry Pi turned on. You should be able to run the code snippet in the MicroPython environment and start getting values. It's that simple! 

    Conclusion:

    Hopefully, you got this all set up to start with your robotics applications. I think the metal mounting bracket with the sensor is a nice touch to any application involving this sensor. Once again, you find the sensor and the bracket for a low cost with this link. Please, if you found this useful in any sort of manner or if it saved you time please like, comment, and subscribe. Thanks for reading!

    Create a free account to access full content.

    All access to code and resources on ShillehTek.

    Signup Now

    Already a member? Sign In

    Explore More on Our Blog

    Controlling a 5V Laser Diode with Raspberry Pi Pico W

    Controlling a 5V Laser Diode with Raspberry Pi Pico W

    Learn how to safely control high-power components like a 5V laser diode using the Raspberry Pi Pico W and a...

    How to Connect and Use the HCSR501 PIR Sensor with a Raspberry Pi Pico/Pico W

    How to Connect and Use the HCSR501 PIR Sensor with a Raspberry Pi Pico/Pico W

    Learn how to set up the HCSR501 PIR sensor with a Raspberry Pi Pico to detect motion and trigger...

    Powering the Raspberry Pi Pico W with the MB102 Power Supply

    Powering the Raspberry Pi Pico W with the MB102 Power Supply

    Learn how to power your Raspberry Pi Pico W projects easily and flexibly with the MB102 Power Supply Module...

    How to Use L298N Motor Driver with Pico W

    How to Use L298N Motor Driver with Pico W

    Learn how to use the L298N motor driver to control DC motors with the Raspberry Pi Pico W in MicroPython.

    Controlling an LED with a Snap Using the KY-037 Sound Sensor and Raspberry Pi

    Controlling an LED with a Snap Using the KY-037 Sound Sensor and Raspberry Pi

    Discover how to set up, code, and activate the LED based on detected sound with the Raspberry Pi...

    Getting Started with the KY-037 Sound Sensor and Raspberry Pi: Detecting Sound Using Python

    Getting Started with the KY-037 Sound Sensor and Raspberry Pi: Detecting Sound Using Python

    In this tutorial, I’ll guide you through setting up the KY-037 sound sensor with a Raspberry Pi using...

    How to Post to Reddit Using Python

    How to Post to Reddit Using Python

    Post to reddit automatically using a Python script.

    How to Create a Time-Lapse Video with a Raspberry Pi Camera

    How to Create a Time-Lapse Video with a Raspberry Pi Camera

    Learn how to make a timelapse with your Raspberry Pi in Python.

    How to Integrate the MPU6050 with the STM32 Blue Pill

    How to Integrate the MPU6050 with the STM32 Blue Pill

    Learn how to measure acceleration with the STM32 and the MPU6050 in the Arduino IDE.

    Getting Started with STM32 Blue Pill in Arduino IDE Using a USB to TTL Converter — Write Your First Program

    Getting Started with STM32 Blue Pill in Arduino IDE Using a USB to TTL Converter — Write Your First Program

    This comprehensive tutorial will guide you through the process of setting up and programming the STM32 Blue Pill...

    Back to blog

    Leave a comment

    Please note, comments need to be approved before they are published.