Files
baroness/app/rfid.py

42 lines
1.2 KiB
Python

try:
import MFRC522
except:
print "ERROR: Need MFRC522 Library to read RFID tags, disable RFID if no reader is present!"
exit()
import signal
import thread
import time
class RFID:
def __init__(self, callbackf):
self.reader = MFRC522.MFRC522()
signal.signal(signal.SIGINT, self.stop)
self.callback = callbackf
self.loop = True
thread.start_new_thread(self.read, ())
def read(self):
while True:
while self.loop:
(status, tagtype) = self.reader.MFRC522_Request(self.reader.PICC_REQIDL)
print "RFID Status:", status
if status == self.reader.MI_OK:
(status, uid) = self.reader.MFRC522_Anticoll()
if status == self.reader.MI_OK:
uids = "0x" + "".join(format(x, '02x') for x in uid)
print "RFID Detect:", uids
self.stop()
self.callback(uids)
while not self.loop:
time.sleep(0.1)
def start(self):
print "RFID reader started"
self.loop = True
def stop(self):
print "RFID reader stopped"
self.loop = False