music.pitch() plays only on pin0 after music.play(...pin=pin_speaker)

[microbit-carlos]

Originally reported in https://github.com/bbcmicrobit/PythonEditor/issues/352 by @martinwork:

---

With the code below, the first call to music.pitch(440) plays on both speaker and pin0.

But after music.play(music.BLUES, pin=pin_speaker), the second call to music.pitch(440) plays only on pin0.

from microbit import *
import music

while True:
    music.pitch(440)
    sleep(1000)
    music.stop()
    sleep(1000)
    music.play(music.BLUES, pin=pin_speaker)
    music.stop()

[dpgeorge]

Should be fixed by e6e43f13a63415ea73f0637de410fbc44de4ce5f, but will need testing

[martinwork]

How can I launch an editor with this change to test? Will it arrive in https://python.microbit.org/v/beta?

[microbit-carlos]

It will arrive to /v/beta tomorrow hopefully. In the meantime you can get hex files from the CI and test in the REPL or transfer a main.py using Mu (or microFs).

https://github.com/microbit-foundation/micropython-microbit-v2/actions/runs/372190264

[microbit-mark]

Setting pin_speaker no longer seems to disable pin0 as it did previously. Is this related

This plays both on speaker and pin0 in latest micropython, but in the https://python.microbit.org/v/beta version of MicroPython, it only plays on the speaker.

import music
from microbit import *

music.play(music.BLUES, pin=pin_speaker)

This works as expected. eg only on pin0

import music
from microbit import *

music.play(music.BLUES, pin=pin0)

[microbit-mark]

@martinwork This shows how to use a custom MicroPython version in Mu

https://tech.microbit.org/software/beta/#mu

[dpgeorge]

This plays both on speaker and pin0 in latest micropython,

Ah, good catch, fixed by 44a75bb4d40390d6b809cfe4509ffccfa76eaf50

[martinwork]

Thanks @microbit-carlos and @microbit-mark for the instructions.

I used the https://github.com/microbit-foundation/micropython-microbit-v2/commit/44a75bb4d40390d6b809cfe4509ffccfa76eaf50 build https://github.com/microbit-foundation/micropython-microbit-v2/actions/runs/373225621

Using pin=pin_speaker is no longer affecting music.pitch(440) in the sample above.

@dpgeorge After a reset music.play(music.BLUES, pin=pin_speaker) just plays on speaker, but after music.pitch it plays on both.

    music.pitch(440)
    music.stop()
    music.play(music.BLUES, pin=pin_speaker)

[dpgeorge]

After a reset music.play(music.BLUES, pin=pin_speaker) just plays on speaker, but after music.pitch it plays on both.

Thanks for the report. Should be fixed by 2f70b757f3bd39454d16b6d077aa078f6b100397

[martinwork]

Thanks @dpgeorge . That's fixed it.

[microbit-carlos]

Thanks Martin!