Arduino atmega328p unique id/serial number
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
//found this code here | |
//https://gist.github.com/speters/f889faec42b510052a6ab4be437d38ca | |
//Purpose is to simply run a memory check on ATMEGA238P to test for counterfeit parts | |
#include <avr/boot.h> | |
#define SIGRD 5 | |
void setup() { | |
// put your setup code here, to run once: | |
Serial.begin(115200); | |
Serial.println(""); | |
Serial.println("boot sig dump"); | |
int newLineIndex = 0; | |
for (uint8_t i = 0; i <= 0x1F; i += 1) { | |
Serial.print(boot_signature_byte_get(i), HEX); | |
Serial.print("\t"); | |
newLineIndex++; | |
if (newLineIndex == 8) { | |
Serial.println(""); | |
newLineIndex = 0; | |
} | |
} | |
Serial.println(); | |
} | |
void loop() { | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
The fake atmega328p-AU chips will not enter High Voltage Parallel Programming mode. The chip just gets very hot.
I have also noticed chips marked as made in Korea (on reverse side) are often (maybe always) fake.