Microbit and KY-020 Tilt switch

In this article, we connect an KY-020 Tilt switch from the ever popular 37 sensor kit to a Microbit

The KY-023 is a very basic tilt switch

Depending on the angle of the module, a switch closes the input pins briefly. This occurs due to the fact that there is a ball inside the switch which short-circuits a contact, depending on the position of the module.

Parts Required

Name	Link
Microbit		Aliexpress link Amazon Ebay
37 in one sensor kit		Aliexpress link Amazon link
Connecting cables		Aliexpress link Amazon Ebay

 

Schematic/Connection

We use P1 – you can change this but would need to change the examples

Example

All of these are from the Microsoft Makecode site

MakeCode

Python

pins.set_pull(DigitalPin.P1, PinPullMode.PULL_UP)

def on_forever():
    serial.write_line("" + str((pins.digital_read_pin(DigitalPin.P1))))
    if pins.digital_read_pin(DigitalPin.P1) == 0:
        basic.show_leds("""
            . . . . .
            . . . . #
            . . . # .
            # . # . .
            . # . . .
            """)
        serial.write_line("Switch triggered")
    else:
        serial.write_line("Nothing")
        basic.show_leds("""
            # . . . #
            . # . # .
            . . # . .
            . # . # .
            # . . . #
            """)
    serial.write_line("**************************************")
    basic.pause(1000)
basic.forever(on_forever)

JavaScript

pins.setPull(DigitalPin.P1, PinPullMode.PullUp)
basic.forever(function () {
    serial.writeLine("" + (pins.digitalReadPin(DigitalPin.P1)))
    if (pins.digitalReadPin(DigitalPin.P1) == 0) {
        basic.showLeds(`
            . . . . .
            . . . . #
            . . . # .
            # . # . .
            . # . . .
            `)
        serial.writeLine("Switch triggered")
    } else {
        serial.writeLine("Nothing")
        basic.showLeds(`
            # . . . #
            . # . # .
            . . # . .
            . # . # .
            # . . . #
            `)
    }
    serial.writeLine("**************************************")
    basic.pause(1000)
})