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| uint64_t chipid;
|
| void setup() {
| Serial.begin(115200);
| }
|
| void loop() {
| chipid=ESP.getEfuseMac();//The chip ID is essentially its MAC address(length: 6 bytes).
| Serial.printf("ESP32 Chip ID = %04X",(uint16_t)(chipid>>32));//print High 2 bytes
| Serial.printf("%08X\n",(uint32_t)chipid);//print Low 4bytes.
|
| delay(3000);
|
| }
|
|