digital Pin

Get an digital pin number for a pin identifier.

pins._digitalPin(DigitalPin.P3)

Parameters

• pin: a pin identifier for an digital pin (P0 through P20).

Returns

• a pin number for the pin identifier.

Example: football score keeper

This program reads pin P0 to find when a goal is scored. When P0 is 1, the program makes the score bigger and plays a buzzer sound through P2 with ||pins:digital write pin||. Use pin variables to set the read and write pin numbers.

let score = 0
let readPin = DigitalPin.P0
let writePin = DigitalPin.P2
basic.showNumber(score)
basic.forever(() => {
    if (pins.digitalReadPin(readPin) == 1) {
        score++;
        pins.digitalWritePin(writePin, 1)
        basic.showNumber(score)
        basic.pause(1000)
        pins.digitalWritePin(writePin, 0)
    }
})

See also

digital read pin, digital write pin