pxt-calliope/docs/examples/servo-calibrator.md
Peli de Halleux 676eee168a Soil - moisture (#418)
* updated servo calibrator

* updated plot analog pin example

* updated servo example

* first drop of soil moisture

* updated picture

* fixing macros

* update code section

* 5 seconds

* adding soil moisture

* fixing links
2017-06-21 11:17:25 -07:00

27 lines
605 B
Markdown

# Servo calibrator
Use this program to calibrate the angles of a servo.
Press ``A`` to reduce the angle by 5 and ``B`` to
increase it by 5.
The current angle is displayed on the screen
in a loop.
```blocks
let angle = 90
input.onButtonPressed(Button.A, () => {
angle -= Math.max(0, 5)
pins.servoWritePin(AnalogPin.P0, angle)
led.stopAnimation()
})
input.onButtonPressed(Button.B, () => {
angle += Math.min(180, 5)
pins.servoWritePin(AnalogPin.P0, angle)
led.stopAnimation()
})
basic.forever(() => {
basic.showNumber(angle)
})
pins.servoWritePin(AnalogPin.P0, angle)
```