49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
import logging
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try:
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import MFRC522
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except:
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logging.critical("Need MFRC522 Library to read RFID tags, disable RFID if no reader is present!")
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exit()
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#import signal
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import thread
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import time
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#from multiprocessing import Process
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class RFID:
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def __init__(self, callbackf):
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logging.info("RFID Reader initialized!")
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self.reader = MFRC522.MFRC522(spd=500000)
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#signal.signal(signal.SIGINT, self.stop)
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self.callback = callbackf
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self.loop = True
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if 1:
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thread.start_new_thread(self.read, ())
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else:
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p = Process(target=self.read, args=())
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p.start()
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p.join()
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def read(self):
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while True:
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while self.loop:
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(status, tagtype) = self.reader.MFRC522_Request(self.reader.PICC_REQIDL)
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logging.debug("RFID Status: " + str(status))
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if status == self.reader.MI_OK:
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(status, uid) = self.reader.MFRC522_Anticoll()
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if status == self.reader.MI_OK:
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uids = "0x" + "".join(format(x, '02x') for x in uid)
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logging.info("RFID Detect: " + uids)
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self.stop()
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self.callback(uids)
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while not self.loop:
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time.sleep(0.1)
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def start(self):
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logging.info("RFID reader started")
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self.loop = True
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def stop(self):
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logging.info("RFID reader stopped")
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self.loop = False
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