Micromonsters
Published © MIT

Magic Button Trick

Build a magic trick to amaze your friends that uses the micro:bit’s compass to detect a nearby magnet!

EasyFull instructions provided6 minutes798
Magic Button Trick

Things used in this project

Hardware components

magnet
×1
BBC micro:bit board
BBC micro:bit board
×1

Story

Read more

Code

Full code

Typescript
Copy and paste this into the "JavaScript" view on pxt.microbit.org
let isSwitched = false
let force = 0
input.onButtonPressed(Button.A, () => {
    if (isSwitched) {
        basic.showString("B")
    } else {
        basic.showString("A")
    }
})
input.onButtonPressed(Button.B, () => {
    if (isSwitched) {
        basic.showString("A")
    } else {
        basic.showString("B")
    }
})
basic.forever(() => {
    force = Math.abs(input.magneticForce(Dimension.Strength))
    isSwitched = force > 100
})

Credits

Micromonsters

Micromonsters

1 project • 0 followers
We are a Dad and Daughter coding superhero duo who love to write code and build thing with the microbit
Contact

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