I noticed that audio.play which is documented as having defaults of pin0 and no return_pin will set pin1 and will leave it that way.
MicroPython v1.9.2-34-gd64154c73 on 2017-09-01; micro:bit v1.0.1 with nRF51822
Type "help()" for more information.
>>>
>>> import audio
>>> frame = audio.AudioFrame()
>>> audio.play([frame] * 20) # this will set pin1 high
>>> audio.play([frame] * 20, pin=pin0) # pin1 still high after this
>>> pin1.read_digital() # set to read mode
1
>>> audio.play([frame] * 20, pin=pin0) # this just plays on pin0, pin1 now unaffected
This happens to be on a microbit V1, haven't tried a V2.
I noticed that
audio.play
which is documented as having defaults ofpin0
and noreturn_pin
will setpin1
and will leave it that way.This happens to be on a microbit V1, haven't tried a V2.
BTW, can mono audio be sent to two pins?