pxt-calliope/docs/reference/input/on-gesture.md

On Gesture

Start an event handler (part of the program that will run when something happens) This handler works when you do a gesture (like shaking the micro:bit).

input.onGesture(Gesture.Shake,() => {
})

Parameters

• gesture means the way you hold or move the micro:bit. This can be shake, logo up, logo down, screen up, screen down, tilt left, tilt right, free fall, 3g, or 6g.

Example: random number

This program shows a number from 0 to 9 when you shake the micro:bit.

input.onGesture(Gesture.Shake,() => {
    let x = Math.random(10)
    basic.showNumber(x, 100)
})