bbc microbit - Are there event callbacks in BBC MicroPython? -

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i trying translate following javascript micropython micro:bit. code example 3 inventor's kit translated block javascript.

let light_state = 0 # how do bit? input.onpinpressed(touchpin.p0, () => {     if (light_state == 0) {         light_state = 1     } else {         light_state = 0     } }) basic.forever(() => {     if (light_state == 1) {         pins.analogwritepin(analogpin.p2, pins.analogreadpin(analogpin.p1))     } else {         pins.digitalwritepin(digitalpin.p2, 0)     } })

i can't figure out how input.onpinpressed callback event or lambda. best can come poll pin0 repeatedly.

from microbit import *  light_on = false while true:     if pin0.is_touched():         light_on = not light_on                 if light_on:             aval = pin1.read_analog()             pin2.write_analog(aval)         else:             pin2.write_digital(0)

i have seen callbacks on switches in micropython documentation haven't come across event callbacks micro:bit pins. there example code feature, if undocumented?

edit: made corrections code - previous micropython translation caused led flicker continuously.

the reply micro:bit forum is

the micropython micro:bit api designed teaching , use school children, , decided not include callbacks in api because can lead complicated bugs. instead need poll pin.





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