def ReadTagPageZero(fd):
# read the tag page 00 command
notag = True
print ("Reading Tag Data Page 00.......")
print ("Waiting for a tag ....")
notag = True
while notag:
WaitForCTS()
# print ("Sending Tag Read Page Command") #Added for Debug purposes
wiringpi2.serialPutchar(fd, 0x52)
wiringpi2.serialPutchar(fd, 0x00)
time.sleep(0.1)
ans = ReadInt(fd)
# print ("Tag Status: %s" % hex(ans)) #Added for Debug purposes
if ans == int("0xD6", 16):
# Tag present and read
notag = False
# print ("Tag Present") #Added for Debug purposes
ans = ReadText(fd)
print ("Page 00")
print ("-->%s<--" % ans)
return
def ReadTagAndBlocks(fd):
# read the tag and all blocks from within it
# Only works for HS/1 as other tags don't support it
notag = True
print ("Reading Tag Data Blocks 00, 01, 02, 03 .......")
print ("Waiting for a tag ....")
notag = True
while notag:
WaitForCTS()
# print ("Sending Tag Read Blocks command") #Added for Debug purposes
wiringpi2.serialPutchar(fd, 0x74)
wiringpi2.serialPutchar(fd, 0x04)
time.sleep(0.1)
ans = ReadInt(fd)
# print ("Tag Status: %s" % hex(ans)) #Added for Debug purposes
if ans == int("0xD6", 16):
# Tag present and read
notag = False
# print ("Tag Present") #Added for Debug purposes
ans = ReadText(fd)
print ("Blocks 00, 01, 02, 03")
print ("-->%s<--" % ans)
return
def TransmitData(channel, payload):
"""
Given the payload, transmit it over the UART line
"""
logging.info('Data to be sent to the serial port %s' % payload)
for items in payload:
logging.debug('Data packet to be sent >%x< on channel:%x' %
(items, channel))
wiringpi.serialPutchar(channel, items)
return
def _serial(send=None):
wiringpi.wiringPiSetup()
serial = wiringpi.serialOpen('/dev/ttyAMA0', 9600)
if send != None:
wiringpi.serialPuts(serial, send)
wiringpi.serialPutchar(serial, 3)
wiringpi.serialClose(serial)
else:
char = ""
asciinum = -1
while (True):
asciinum = wiringpi.serialGetchar(serial)
if asciinum != -1 and asciinum != 3:
char += chr(asciinum)
elif asciinum == 3:
break
wiringpi.serialClose(serial)
return char
def SetPollingDalay(fd):
# set the polling delay for the reader
print ("Setting Polling delay .......")
WaitForCTS()
wiringpi2.serialPutchar(fd, 0x50)
wiringpi2.serialPutchar(fd, 0x00)
# various polling delays possible, standard one uncommented
#wiringpi2.serialPutchar(fd, 0x00) # 0x00 is no delay
#wiringpi2.serialPutchar(fd, 0x20) # 0x20 is approx 20ms
#wiringpi2.serialPutchar(fd, 0x40) # 0x40 is approx 65ms
wiringpi2.serialPutchar(fd, 0x60) # 0x60 is approx 262ms
#wiringpi2.serialPutchar(fd, 0x80) # 0x60 is approx 1 Seconds
#wiringpi2.serialPutchar(fd, 0xA0) # 0x60 is approx 4 Seconds
time.sleep(0.1)
ans = ReadInt(fd)
# print ("Tag Status: %s" % hex(ans)) # Added for Debug Purposes
if ans == int("0xC0", 16):
# C0 is a positive result
print ("Polling delay changed ......")
else:
print ("Unexpected response %s" % hex(ans))
# flush any remaining characters from the buffer
wiringpi2.serialFlush(fd)
return
def write(self, data):
wiringpi.serialPutchar(self.serial, ord('[')) # Start of packet
for c in data:
print(c)
wiringpi.serialPutchar(self.serial, ord(c))
wiringpi.serialPutchar(self.serial, ord(']')) # End of packet
def FactoryReset(fd):
# send the factory reset command
WaitForCTS()
# print ("Performing a factory reset ....") #Added for Debug purposes
wiringpi2.serialPutchar(fd, 0x46)
wiringpi2.serialPutchar(fd, 0x55)
wiringpi2.serialPutchar(fd, 0xAA)
time.sleep(0.1)
print ("FACTORY RESET COMPLETE ")
print ("")
return
def ChangeReaderOpMode(fd):
# prvide an additional menu to choose the type of tag to be read and set the reader accordingly
print ("Setting Reader Operating Tag Mode.......")
desc = ""
choice = ""
while choice == "":
print ("*********************************************")
print ("a - Hitag H2")
print ("b - Hitag H1/S (factory default)")
print ("c - EM/MC2000")
# promt the user for a choice
choice = input("Please select tag type .....:")
# print ("choice: %s" % choice) # Added for Debug purposes
if choice =="a" or choice == "A":
desc = "Hitag H2"
WaitForCTS()
wiringpi2.serialPutchar(fd, 0x76)
wiringpi2.serialPutchar(fd, 0x01) # 0x01 = H2
elif choice =="b" or choice == "B":
desc = "Hitag H1/S"
WaitForCTS()
wiringpi2.serialPutchar(fd, 0x76)
wiringpi2.serialPutchar(fd, 0x02) # 0x01 = H1/S
elif choice =="c" or choice == "C":
desc = "Em / MC2000"
WaitForCTS()
wiringpi2.serialPutchar(fd, 0x76)
wiringpi2.serialPutchar(fd, 0x03) # 0x03 = EM/MC2000
else:
print ("Invalid option. Please try again...")
choice = ""
time.sleep(0.1)
ans = ReadInt(fd)
# print ("Tag Status: %s" % hex(ans)) #Added for Debug purposes
if ans == int("0xC0", 16):
# Positive result
print ("Reader Operating Mode %s ......" % desc)
else:
print ("Unexpected response %s" % hex(ans))
# clear the buffer
wiringpi2.serialFlush(fd)
def write(self, data):
""" write bytes of data to serial port. """
for char in data:
wiringpi.serialPutchar(self.serial_fd, char)
def putc(self, c):
self.waitbusy()
wpi.serialPutchar(self.serial, c)
