Handle reading the cards

main.py

@@ -6,44 +6,71 @@ logging.basicConfig(
 import os
 import json
 import sys
-#import RPi.GPIO as GPIO
+import RPi.GPIO as GPIO
 import serial
 import time
 
 RELAY_PIN = 17
 RFID_EN_PIN = 27
 CARDS_FILE = 'cardexport.json'
+OPEN_DURATION = 5
 
 ser = None
 recent = {}
 cards = {}
 
 def init():
-    global ser
+    global ser, cards
 
-    #GPIO.setwarnings(False)
+    GPIO.setwarnings(False)
-    #GPIO.setmode(GPIO.BCM)
+    GPIO.setmode(GPIO.BCM)
-    #GPIO.setup(RELAY_PIN, GPIO.OUT)
+    GPIO.setup(RELAY_PIN, GPIO.OUT)
-    #GPIO.output(RELAY_PIN, GPIO.LOW)
+    GPIO.output(RELAY_PIN, GPIO.LOW)
-    #GPIO.setup(RFID_EN_PIN, GPIO.OUT)
+    GPIO.setup(RFID_EN_PIN, GPIO.OUT)
-    #GPIO.output(RFID_EN_PIN, GPIO.LOW)
+    GPIO.output(RFID_EN_PIN, GPIO.LOW)
     logging.info('GPIO initialized.')
 
-    #ser = serial.Serial(port='/dev/ttyAMA0', baudrate=2400, timeout=0.1)
+    ser = serial.Serial(port='/dev/ttyAMA0', baudrate=2400, timeout=0.1)
     logging.info('Serial initialized.')
 
     with open(CARDS_FILE, 'r') as f:
         cards = json.load(f)
     logging.info('Read in {} card numbers.'.format(str(len(cards))))
 
+def unlock_door():
+    GPIO.output(RELAY_PIN, GPIO.HIGH)
+    GPIO.output(RFID_EN_PIN, GPIO.HIGH)
 
+    time.sleep(OPEN_DURATION)
+
+    GPIO.output(RELAY_PIN, GPIO.LOW)
+    GPIO.output(RFID_EN_PIN, GPIO.LOW)
+
+def handle_card_read(card):
+    if card in cards:
+        logging.info('Card recognized.')
+        member = cards[card]
+    else:
+        logging.info('Card not recognized. Denying access.')
+        return
+
+    if member['enabled']:
+        logging.info('Member active.')
+    else:
+        logging.info('Member not active. Denying access.')
+        return
+
+    logging.info('DOOR ACCESS - Card: {} | Name: {} | id: {}'.format(
+        card, member['name'], member['id']))
+
+    unlock_door()
 
 def loop():
     card = ser.readline()
     if not card:
         return
 
-    card = card.strip()
+    card = card.decode().strip()
     if len(card) != 10:
         return
 
@@ -54,7 +81,7 @@ def loop():
             return
     recent[card] = now
 
-    logging.info('Read card # ' + card)
+    logging.info('\nRead card #' + card)
     handle_card_read(card)
 
 if __name__ == '__main__':

requirements.txt

@@ -1,2 +1 @@
-pkg-resources==0.0.0
 pyserial==3.4