RFID reader connection error with raspberry pi

Question

We are trying to read RFID tags using raspberry pi b+. We used following script in the python .

import serial
import time
serial=serial.Serial("/dev/ttyUSB0", baudrate=2400)
while True:
    if serial.inWaiting()>0:
        read_result=serial.read(12)
        print("Read card {0}",format(read_result.decode("utf-8","replace")))
        print("Sleeping 2 sec")
        time.sleep(2)
        serial.flushInput() 

On reading the tag it gives the error as:

File "/home/pi/rfidtry/try.py",line 7, in <module>
print("Read card {0}",format(read_result.decode("utf-8","replace")))
UnicodeEncodeError: 'ascii' codac can't encode character u'\uffd' in position 2
:ordinal not in range(128)

Answer 1

The problem was with the baudrate. The earlier reader i used was 2400 but the one i am using now is 9600.