Audio on nRF52840 with low or fragmented memory Moderators: adafruit_support_bill, adafruit

[kevinjwalters]

I've been seeing some of these recently in CircuitPython 5.3.0 running with about 45k spare as reported by gc.mem_free():

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MemoryError: memory allocation failed, allocating 2048 bytes

and

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MemoryError: memory allocation failed, allocating 1784 bytes

I think those sporadic exceptions originate from PWMAudioOut.play and adding entries to a Dict, respectively.

If anyone else is suffering from the first 2048 byte one due to playing audio, I've written a class which offers some workarounds to avoid leaving the interal buffer de-allocated, see rps_audio.py.