9. Crash Sensor(EF05008)#

9.1. Introduction#

Crash Sensor is a sensor module based on crash components.


9.3. Characteristic#

Designed in RJ11 connections, easy to plug.

9.4. Specification#

Item Parameter
SKU EF05008
Connection RJ11
Type of Connection Digital output
Working Voltage 3.3V

9.5. Outlook#


9.6. Quick to Start#

9.6.1. 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.


9.7. MakeCode Programming#

9.7.1. 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.

9.7.2. Step 2#

9.7.3. Code as below:#


9.7.5. Result#

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

9.8. Python Programming#

9.8.1. Step 1#

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


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

../_images/05001_081.png ../_images/05001_091.png ../_images/05008_10.png

9.8.2. Step 2#

9.8.3. Reference#

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

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

9.8.4. Result#

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

9.9. Relevant File#

9.10. Technique File#