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			15 lines
		
	
	
		
			327 B
		
	
	
	
		
			Arduino
		
	
	
	
	
	
		
		
			
		
	
	
			15 lines
		
	
	
		
			327 B
		
	
	
	
		
			Arduino
		
	
	
	
	
	
|   | 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); | ||
|  | 
 | ||
|  | } |