Micro:bit TrackingThings Opened Fridge Detector

by Vafanasj in Circuits > Microcontrollers

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Micro:bit TrackingThings Opened Fridge Detector

This is a project which uses an accelerometer on the micro:bit to detect movement. It is useful for detecting how many times a door has been opened, for example. If you ever wanted to track how many times you opened a door of a fridge or something else, this is for you.

Downloads

20210811_122723.mp4

Supplies

1 micro:bit
A computer or phone
The micro:bit app or the MakeCode site

A small, transparent box

A LiPo Battery

Some double-sided foam tape

Setting Up

To set up the micro:bit for the project, you first connect the micro:bit to your computer via wire or to your phone via Bluetooth. Next, you use the micro:bit app or the MakeCode site to code the micro:bit so that it will work.

The Code.

Since you need the code to get the micro:bit to work, use the one provided here:

https://makecode.microbit.org/_Yq4ewTEgwTba

Instructions

To make the opened door detector, you have to:

1. Find a transparent box, small enough so that the micro:bit would have just enough space

2. Put some double-sided foam tape on 1 side of the transparent box

3. Connect a battery (preferably charged) to the micro:bit

4. Put the micro:bit into the box

5. Put the box on a door.

Now you have an operational opened door detector on a door.