Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

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By ToSa
#21186 The CHIP ID is the decimal representation of the last three bytes of the MAC. This is nowhere documented and therefore could change in future but so far this was true for all chips I checked. Makes some sense as the first three bytes of the MAC are meant to be the manufacturer ID...