djsundog/circuitpython
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2 Commits

Author SHA1 Message Date
Jeff Epler
a2919a6fb2 esp32s2: Use the device's EUI-48 address as unique ID 
On my hardware, esptool reports
    MAC: 7c:df:a1:02:6c:b8
after this change, the USB descriptor says SerialNumber: 7CDFA1026CB8
and microcontroller.cpu.id has
    >>> "".join("%02x" % byte for byte in microcontroller.cpu.uid)
    'c7fd1a20c68b'

Note that the nibble-swapping between USB and cpu.uid is typical.
For instance, an stm32 board has USB SerialNumber
24002500F005D42445632302 but hex-converted microcontroller.cpu.id
420052000f504d4254363220.
 2020-07-15 11:45:13 -05:00
Scott Shawcroft
6aaab005c5
Initial ESP32S2 port. 
Basic blinky works but doesn't check pins.
 2020-05-15 15:36:16 -07:00