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SD card should communicate with MCU by SPI.
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Hey! This is totally awesome!
Have you thought of using something like this to accomplish voice wakeup?
https://www.digikey.ca/product-detail/en/pui-audio-inc/PMM-3738-VM1010-R/668-1585-1-ND/734…
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Please provide a link to the Altium format in CircuitMaker for those who are using that. The link is here:
circuitmaker.com/Projects/Details/CircuitMaker-Official/OSHWA-Certification-Logo
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A lot of cheap PCB sources (e.g. OSH Park) only accept positive gerbers.
http://docs.oshpark.com/submitting-orders/inverted-gerbers/
Currently, it seems that inner planes are provided as negative g…
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Could you please redo the pcb in kicad? ty