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Crash Sensor(EF05008)


Crash Sensor is a sensor module based on crash components.

ELECFREAKS PlanetX Crash Sensor


Designed in RJ11 connections, easy to plug.


Type of ConnectionDigital output
Working Voltage3.3V


Quick to Start

Materials Required and Diagram

Connect the Crash sensor to J1 port and the LED to J2 port in the Nezha expansion board as the picture shows.

MakeCode Programming

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.

Step 2

Code as below:


You may also download it directly below:


The LED lights on if the crash switch was pressed or it lights off.

Python Programming

Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

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

Step 2


from microbit import *
from enum import *
from crash import *
crash = CRASH(J1)

while True:
button = crash.crash_is_pressed()
if(button == True):


A smile face displays on the micro:bit while the crash switch being pressed or the micro:bit displays a sad face.

Relevant File

Technique File