micro:bit (Part 1)

W10 micro:bit

Part 1

this week i explored the "magic button trick" project.

the coding is very simple and allows you to play a magic trick (as long as you have a piece of magnet in your hand).

the coding is as follows:

translating the blocks into javascript:

this trick is interesting because it uses a measurement of "force" - which tells the micro:bit if a magnet is close by.

if it senses a magnet, it will automatically switch its A and B buttons.

the javascript:

let is_switched = false

let force = 0

input.onButtonPressed(Button.A, () => {

if (is_switched) {

basic.showString("B")

} else {

basic.showString("A")

}

})

input.onButtonPressed(Button.B, () => {

if (is_switched) {

basic.showString("A")

} else {

basic.showString("B")

}

})

force = input.magneticForce(Dimension.Strength)

is_switched = force > 100

basic.forever(() => {

force = Math.abs(input.magneticForce(Dimension.Strength))

is_switched = force > 100

})