Hello, I have MFRC522 and need sent UID to server. For this example I have card with UID: 35 CB F8 C2 (this I can get by mfrc522.PICC_DumpToSerial(&(mfrc522.uid)); ). This basic way is returning decimal UID : "00-2048194" cardId = mfrc522.uid.uidByte[0] << 24; cardId += mfrc522.uid.uidByte[1] << …

mfrc522 UID - converting to dec

snoop November 17, 2017, 4:26pm 3

Thank you very much J-M-L! This is exactly what I was searching for.

Topic		Replies	Views
Convert MFRC522 UID to string, byte array to string Programming	1	6675	May 6, 2021
mfrc522 - Mifare UID issues Programming	21	7663	May 5, 2021
Reversing and Converting hex to decimal Programming	19	8035	May 5, 2021
how to read only UID of the rfid tag using RC522 RFID reader Programming	11	42769	May 5, 2021
Code to reverse a HEX value and convert to Decimal Programming	10	16847	May 5, 2021