Example Code for micro:bit-Ultrasonic ranging
Last revision 2025/12/08
This article offers a comprehensive guide to setting up and using an ultrasonic distance sensor with micro:bit, including hardware requirements, software setup, wiring instructions, and example code for accurate distance measurement.
Hardware Preparation
- URM09 Ultrasonic Distance Sensor（SKU：SEN0388）: 1
- IO Expansion Board（SKU：MBT0014）: 1
Software Preparation
Makecode online programming address: https://makecode.microbit.org.
Please copy the library link address and paste it into the Makecode extension to search: https://github.com/DFRobot/pxt-DFRobot_creative-robotics-kit
Wiring Diagram
Other Preparation Work
Copy the library link address https://github.com/DFRobot/pxt-DFRobot_creative-robotics-kit and paste it into the Makecode extension to search and add the library.
Sample Code
Result
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