Hardware suggestions for next version of products

  • Audio amplifier auto off

    I suggest to hardware implement auto-disabling of the audio amplifier when not playing any audio.
    Some power savings could be achieved and the device would be prevented from producing unexpected noises.

    The audio amplifier chip has an "enable" pin.
    I think it would be a good idea to use a low pass filter fed from the audio output so it would disable the amplifier after the "dac" was set to 0 for long enough.
    This way, it would not be necessary to allocate one of the ESP32 outputs to control the amplifier chip.

  • good idea!

  • yes, i will change the design. thank you!