suspect-devices/circuitpython/ports/esp32s2/common-hal/microcontroller/Processor.h, branch 6.1.x CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=6.1.x 2020-11-23T00:10:09+00:00 wip 2020-11-23T00:10:09+00:00 Dan Halbert halbert@halwitz.org 2020-11-23T00:10:09+00:00 urn:sha1:a0f1ec3c4a3dd52b11752e10d0dd31202e9c705f esp32s2: Use the device's EUI-48 address as unique ID 2020-07-15T16:45:13+00:00 Jeff Epler jepler@gmail.com 2020-07-15T16:45:13+00:00 urn:sha1:a2919a6fb2c433cafa5c528ee03ee9c86efb93d8 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. Initial ESP32S2 port. 2020-05-15T22:36:16+00:00 Scott Shawcroft scott@tannewt.org 2020-04-17T23:23:28+00:00 urn:sha1:6aaab005c5f3a781fec229640c74bf44a601fc97 Basic blinky works but doesn't check pins.