SATS/feature/rfid-read/source/read.py

#!/usr/bin/env python
# -*- coding: utf8 -*-

import RPi.GPIO as GPIO
import MFRC522



# [1] Create an object of the class MFRC522
GPIO.setwarnings(False);
MIFAREReader = MFRC522.MFRC522()

# [2] Scan for cards
(status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)

# [3] If no card found -> exit 1
if status != MIFAREReader.MI_OK:
	print 127;
	exit(127);

# [4] Get the UID of the card
(status,uid) = MIFAREReader.MFRC522_Anticoll()

# [5] If no UID read -> exit 1
if status != MIFAREReader.MI_OK:
	print 127;
	exit(127);

# [6] Print UID
suid =        str(hex(uid[0]))[2:];
suid += '-' + str(hex(uid[1]))[2:];
suid += '-' + str(hex(uid[2]))[2:];
suid += '-' + str(hex(uid[3]))[2:];

print suid;
exit(0);