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Lecture de l'UID d'un tag RFID au moyen d'un module RC522 branché à un Rapberry Pi.
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#!/usr/bin/env python | |
# -*- coding: utf-8 -*- | |
''' | |
Lecture de l'UID d'un tag RFID au moyen | |
d'un module RC522 branché à un Rapberry Pi. | |
Une LED verte s'allume si le tag est accepté, | |
sinon c'est une LED rouge qui s'allume. | |
Utilisation de la bibliothèque pi-rc522. | |
Pour plus d'informations: | |
https://electroniqueamateur.blogspot.com/2017/04/module-rfid-rc522-et-raspberry-pi-python.html | |
''' | |
from pirc522 import RFID # pour le RFID | |
import time # pour les delais | |
import RPi.GPIO as GPIO # pour l'allumage des LEDs | |
bonUID = [144,207,148,117] # a remplacer par l'UID correct | |
LEDverte = 15 # LED verte branchee pin 15 | |
LEDrouge = 16 # LED rouge branchee pin 16 | |
rc522 = RFID() | |
GPIO.setup(LEDverte,GPIO.OUT) | |
GPIO.setup(LEDrouge,GPIO.OUT) | |
while True: | |
refus = 0 | |
rc522.wait_for_tag() | |
(error, tag_type) = rc522.request() | |
if not error: | |
(error, uid) = rc522.anticoll() | |
if not error: | |
for i in range(0, 4): | |
if uid[i] != bonUID[i]: | |
refus = refus + 1 | |
if refus == 0: | |
GPIO.output(LEDverte,GPIO.HIGH) | |
time.sleep(2) | |
GPIO.output(LEDverte,GPIO.LOW) | |
else: | |
GPIO.output(LEDrouge,GPIO.HIGH) | |
time.sleep(2) | |
GPIO.output(LEDrouge,GPIO.LOW) | |
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