Two Readers (CS0 and CS1) not working in one program

[Thmas47051]

Hi, using one reader (spidev0.0 and spidev0.1) in one program works (Read.py).

Two readers are not working. Only the first initialized is working. Any idea?

Thomas

`import RFID import signal import time

run = True rdr0 = RFID.RFID("/dev/spidev0.1") rdr1 = RFID.RFID("/dev/spidev0.0") util1 = rdr1.util() util1.debug = True util0 = rdr0.util() util0.debug = True

def end_read(signal,frame): global run print ("\nCtrl+C captured, ending read.") run = False rdr0.cleanup() rdr1.cleanup()

signal.signal(signal.SIGINT, end_read)

print ("Starting") while run: (error, data) = rdr0.request()

(error, uid) = rdr0.anticoll()
if not error:
    print ("In Card read UID: "+str(uid[0])+","+str(uid[1])+","+str(uid[2])+","+str(uid[3]))

(error, data) = rdr1.request()
(error, uid) = rdr1.anticoll()
if not error:
    print ("Out Card read UID: "+str(uid[0])+","+str(uid[1])+","+str(uid[2])+","+str(uid[3]))

 time.sleep(0.1)

`

[Thmas47051]

Solved. The trick was: rdr2 = RFID.RFID("/dev/spidev0.0",pin_ce=24) rdr1 = RFID.RFID("/dev/spidev0.1",pin_ce=26)

Bye, Thomas ` import RFID import signal import time

run = True

rdr2 = RFID.RFID("/dev/spidev0.0",pin_ce=24) rdr1 = RFID.RFID("/dev/spidev0.1",pin_ce=26)

def end_read(signal,frame): global run print ("\nCtrl+C captured, ending read.") run = False rdr1.cleanup() rdr2.cleanup()

signal.signal(signal.SIGINT, end_read)

print ("\nStarting") while run: print("\n**") (error, data) = rdr1.request() if not error: print ("\nDetected: " + format(data, "02x"))

    (error, uid) = rdr1.anticoll()
    if not error:
      print ("Card read UID IN : "+str(uid[0])+","+str(uid[1])+","+str(uid[2])+","+str(uid[3]))
(error, data) = rdr2.request()
if not error:
    print ("\nDetected: " + format(data, "02x"))
    (error, uid) = rdr2.anticoll()
    if not error:
      print ("Card read UID OUT : "+str(uid[0])+","+str(uid[1])+","+str(uid[2])+","+str(uid[3]))

`

[EVENFATE]

still not working ,for help,readers cant read the tag data

[EVENFATE]

i use gpio expansion board to set up two readers in one raspberry ,but the program not work

[EVENFATE]

please help ....

[ghost]

@EVENFATE I present a solution here: https://github.com/erivandoramos/TwoRC522RPi

[LudwigKnuepfer]

@ondryaso I guess this issue can be closed.

[PsuFan]

You forgot the rst pin.

rdr1 = RFID.RFID(device=0, pin_ce=24, pin_rst=22) rdr2 = RFID.RFID(device=1, pin_ce=26, pin_rst=18)

edit: is the rst pin required? Can you chain them? I've seen some wiring rst together... https://stackoverflow.com/questions/39561220/two-rfid-rc522-raspberry-pi-2-windows-iot?rq=1