pxt-calliope/docs/reference/input/acceleration.md

Acceleration

Get the acceleration value (milli g-force), in one of three specified dimensions.

Find the acceleration of the @boardname@ (how fast it is speeding up or slowing down).

input.acceleration(Dimension.X);

~hint

You measure acceleration with the milli-g, which is 1/1000 of a g. A g is as much acceleration as you get from Earth's gravity.

~

Parameters

• dimension means which direction you are checking for acceleration, either Dimension.X (left and right), Dimension.Y (forward and backward), or Dimension.Z (up and down)

Returns

• a number that means the amount of acceleration. When the @boardname@ is lying flat on a surface with the screen pointing up, x is 0, y is 0, and z is -1023.

Example: bar chart

This example shows the acceleration of the @boardname@ with a bar graph.

basic.forever(() => {
    led.plotBarGraph(input.acceleration(Dimension.X), 1023)
})

See also

set accelerometer range, compass heading, light level