def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
self.SetSize((480, 320))
self.SetTitle('Baroness Control')
self.panelStart = PanelStart(self)
self.panelDrinks = PanelDrinks(self)
self.panelUsers = PanelUsers(self)
self.panelThanks = PanelThanks(self)
self.panelSorry = PanelSorry(self)
self.panelRFID = PanelRFID(self)
if settings.enableRFID:
self.rfid = rfid.RFID(self.on_rfid)
self.user = User()
self.rfidid = ""
self.drinkl = ""
self.active = 0
self.switchPanels()
self.Show()
import serial
import rfid
import gpiozero
lock = gpiozero.LED(17) #lock is GPIO GP17, LED class must be used
rfid_permission_led = gpiozero.LED(18) #LED to flash if not authenticated
ser = serial.Serial(
port='/dev/ttyS0',
baudrate=9600,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.EIGHTBITS,
timeout=1
)
while True:
raw_data = ser.readline() #read serial port until a '\n' termination byte is recieved
rfid_message = rfid.RFID(raw_data) #pass raw_data to new instance object 'rfid_message'
if rfid_message.authenticate == 1: #if authenticated for access, unlock
#lock.on()
#lock will unlock for 5 seconds
print(raw_data)
print('RFID: ' + str(rfid_message.rfid_requesting_access))
print('Access granted!')
elif len(raw_data) == 0: #if no data is present(timeout reached), do nothing.
pass
else:
rfid_permission_led.blink(0.6, 0.4, 4) #blink on for 0.6seconds, off, for 0.4 seconds, blink 4 times
print('No Access')
import rfid
import rfid.t5577
import matplotlib.pyplot as plt
data = bytes([0, 0, 0x03, 0x55] * 7)
print("Writing", rfid.pretty_bytes(data))
print("Writing", rfid.bytes_to_binary_string(data))
data_sorted = rfid.binary_string_to_bytes(rfid.sort_cycle(rfid.bytes_to_binary_string(data), False))
if data_sorted != data:
print("Warning! Data cycles to", rfid.pretty_bytes(data_sorted))
r = rfid.RFID()
samples = rfid.t5577.write_card_basic(data, bit_width=50, modulation="fsk2a")
r.raw_write(samples)
samples = r.raw_read(2**15)
samples_demod = rfid.fsk_demodulator(samples, p0=8, p1=10)
(decoded_bits, decoded_waveform) = rfid.decoder(samples_demod, bit_width=50)
plt.plot(samples_demod)
plt.plot(decoded_waveform)
plt.show()
cycles = rfid.find_cycles(rfid.thresh(decoded_bits), length=96)
for cycle in cycles:
cycle_bytes = rfid.binary_string_to_bytes(rfid.sort_cycle(cycle, False))
if cycle_bytes == data_sorted:
print("Read back OK!")
else:
print("Bad read:", rfid.pretty_bytes(cycle_bytes))
print("Bad read", rfid.bytes_to_binary_string(cycle_bytes))
import rfid test = rfid.RFID() cartao = test.read() print(cartao)