8. Sonar:bit(EF05007)

8.1. Introduction

Sonar:bit aims to measure the shortly distance.


8.2. Characteristic

  • Designed in RJ11 connections, easy to plug.

8.3. Specification

Item Parameter
SKU EF05007
Connection RJ11
Type of Connection Digital output
Working Voltage 3.3V

8.4. Outlook


8.5. Quick to Start

8.5.1. Materials Required and Diagram

  • Connect the Sonar:bit to J1 port and the OLED module to the IIC port in the Nezha expansion board as the picture shows.


8.6. MakeCode Programming

8.6.1. Step 1

Click “Advanced” in the MakeCode drawer to see more choices.


We need to add a package for programming, . Click “Extensions” in the bottom of the drawer and search with “PlanetX” in the dialogue box to download it.


Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

8.6.2. Step 2

8.6.3. Code as below:


8.6.5. Result

  • The distance value displays on the OLED module.

8.7. Python Programming

8.7.1. Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


We need to add enum.py and distance.py for programming. Click “Load/Save” and then click “Show Files (1)” to see more choices, click “Add file” to add enum.py and distance.py from the unzipped package of PlanetX_MicroPython.

../_images/05001_081.png ../_images/05001_091.png ../_images/05007_10.png

8.7.2. Step 2

8.7.3. Reference

from microbit import *
from enum import *
from distance import *

while True:
    dis = DISTANCE(J1)

8.7.4. Result

  • The detected distance displays on the micro:bit.

8.8. Relevant File

8.9. Technique File