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We should add an amplifier and speaker to the board in the magnetic lock box by the front door so we get sounds again.
I think the entrance sounds should be played into the room as people make their entrance, rather than go to the hassle to use the spare wires to play it back at the person who has just touched in from outside. Therefore this ought to be easy if we get the parts and wire them in.
I checked the doorbot hardware by loading the broken kicad files and got the code for the amp as MAX98357A. https://github.com/DoESLiverpool/doorbot-setup/tree/master/hardware
Does it look like one of these: https://shop.pimoroni.com/products/adafruit-i2s-3w-class-d-amplifier-breakout-max98357a