8. Sonar:bit

8.1. Introduction

  • Sonar:bit is a 3-wire ultrasonic module with the working voltage between 3-5V. It is available to be used to 3.3V or 5V micro-controller system. With only one 3-wire(GVS) cable, it can work properly. Compared to the normal 4-wire ultrasonic module, it has saved one IO port. The measurement range of sonar:bit is 4cm-400cm. It can output stable and accurate measurement data with ±1cm tolerance only.

  • It can connect to the Ring:bit with an expansion board.


8.2. Characteristics

  • Input voltage:3V~5V and can be driven by micro:bit directly.

  • Standard 3-wire GVS connecotr, which occupies 1 IO port only.

8.3. Parameter

Item Parameter Remark
Name Ring:bit car v2 sonar:bit -
SKU EF04089 -
Working Voltage DC 3-5V -
Connection 3pin GVS connection -
Output Signal Simulation -
Measuring Distance 4-400cm -
Dimmension 40.60mm * 51.60mm -
Net Weight 12g -

8.4. Outlook


8.5. Quick to Start

Hardware Connection

  • Connect the acrylic transition board to the back board with the rivets.


  • Connect the Sonar:bit to the other side of the acrylic transition board with rivets.


  • Connect the Sonar:bit to the Ring:bit breakout board with a 3-pin wire.


Software Programming

  • Choose sonar:bit in makecode.

  • Search ringbit in the dialogue box and click it to download it.

  • Programme to measure the distance with ultrasonic in makecode on-line editor.


Links: https://makecode.microbit.org/_iP7DWxFicRox

You can download it directly below:


  • The value measured by Sonar:bit is showing on the micro:bit.

8.6. About

case 10