0

I'm trying to use my RDM6300 module with the Raspberry Pi 3 as show on this site: https://behindthesciences.com/electronics/raspberry-pi-rfid-tag-reader/

I disabled the terminal tty by putting in /boot/config.txt

dtoverlay=pi3-disable-bt
enable_uart=1

I wired the module to 5V, GND, GPIO 8 and 10 (BCM 14 and 15) but I can't still communicate with the module using the serial port. I'm using this python script

import time, serial

sl = serial.Serial("/dev/ttyS0", 9600)

while True:
    ID = ""
    read_byte = sl.read()
    if read_byte == "\x02":
        for i in range(12):
            read_byte = sl.read()
            ID = ID + str(read_byte)
        print(ID)

and the kernel 4.9.78-v7+

  • With linux 4.14.18-v7+ the serial port is now working fine. – Marco Feb 19 '18 at 18:47
1

Have you try to the see list of peripheral in ls /dev?
Have you try sl = serial.Serial("/dev/serial0", 9600)?

  • Alright, i can see /dev/serial0 and /dev/serial1 but no one is receiving data from the module (i near the key and nothing is shown either via minicom) – Marco Jan 31 '18 at 17:51
  • Do you have invert RX and TX? – Comeister Feb 1 '18 at 9:37
  • Try to delete console=serial0,115200 in /boot/config.txt – Comeister Feb 1 '18 at 9:38
  • Yes i tried to invert RX and TX without any result. I have no console=serial0,115200 neither in /boot/config.txt nor in /boot/cmdline.txt . Loopback is working fine (connecting RX and TX togther) and the same module on my Sunfounder mega is working fine too. – Marco Feb 1 '18 at 14:59
  • serial.Serial("/dev/serial0", 9600) worked for me using the python3-serial package – Sven Rojek Aug 16 '18 at 22:08

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.