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SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

HillWithSmallFields

Member Since: June 16, 2010

Country: United States

  • A small optimization: I think you could have done this without the PIC – the GM862 has quite a few GPIO pins, and is programmable (in Python), so you could probably have done the rotary sensing etc directly from the GM862.
    Also, in the UK version of these phones, I think the microphone was resistive, do you think that’s what you’ve got here? I’m not that hot on analog stuff myself but I think your circuit would work with a resistive microphone.

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