Merge pull request #193 from ottk3/master

RDM6300 V2: Add separated variables and an additional timeout
MiczFlor · Sep 11, 2018 · 6721824 · 6721824
2 parents cc6030d + bf2115c
commit 6721824
Showing 1 changed file with 19 additions and 8 deletions.
diff --git a/scripts/Reader_RDM6300.py b/scripts/Reader_RDM6300.py
@@ -29,16 +29,27 @@
 
 class Reader:
     def __init__(self):
+        device = '/dev/ttyS0'
+        baudrate = 9600
+        ser_timeout = 0.1
+
         GPIO.setmode(GPIO.BCM)
-        self.rfid_serial = serial.Serial('/dev/ttyS0', 9600)
+        self.rfid_serial = serial.Serial(device, baudrate, timeout=ser_timeout)
 
     def readCard(self):
         while True:
             card_id = ''
-            read_byte = self.rfid_serial.read()
-            if read_byte == b'\x02':
-                while read_byte != b'\x03':
-                    read_byte = self.rfid_serial.read()
-                    card_id += read_byte.decode('utf-8')
-                card_id = ''.join(x for x in card_id if x in string.printable)
-                return card_id
+            try:
+                read_byte = self.rfid_serial.read()
+                if read_byte == b'\x02':
+                    while read_byte != b'\x03':
+                        read_byte = self.rfid_serial.read()
+                        card_id += read_byte.decode('utf-8')
+                    card_id = ''.join(x for x in card_id if x in string.printable)
+                    card_id
+                    return card_id
+
+            except ValueError as e:
+                print(e)
+                self.readCard()
+