TonBERRY/micropython-mfrc522
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add 7/10 bytes ID

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This commit is contained in:
danjperron
2019-09-20 15:16:54 -04:00
parent e910c28ed8
commit 950cdee303
3 changed files with 334 additions and 325 deletions
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33
examples/read.py
View File

@@ -2,12 +2,18 @@ import mfrc522
from os import uname
def uidToString(uid):
mystring = ""
for i in uid:
mystring = "%02X" % i + mystring
return mystring
def do_read():
if uname()[0] == 'WiPy':
rdr = mfrc522.MFRC522("GP14", "GP16", "GP15", "GP22", "GP17")
elif uname()[0] == 'esp8266':
rdr = mfrc522.MFRC522(0, 2, 4, 5, 14)
elif uname()[0] == 'esp32':
rdr = mfrc522.MFRC522(sck=18,mosi=23,miso=19,rst=22,cs=21)
else:
raise RuntimeError("Unsupported platform")
@@ -22,25 +28,14 @@ def do_read():
if stat == rdr.OK:
(stat, raw_uid) = rdr.anticoll()
(stat, uid) = rdr.SelectTagSN()
if stat == rdr.OK:
print("New card detected")
print(" - tag type: 0x%02x" % tag_type)
print(" - uid : 0x%02x%02x%02x%02x" % (raw_uid[0], raw_uid[1], raw_uid[2], raw_uid[3]))
print("")
if rdr.select_tag(raw_uid) == rdr.OK:
key = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF]
if rdr.auth(rdr.AUTHENT1A, 8, key, raw_uid) == rdr.OK:
print("Address 8 data: %s" % rdr.read(8))
rdr.stop_crypto1()
else:
print("Authentication error")
else:
print("Failed to select tag")
print("Card detected %s" % uidToString(uid))
else:
print("Authentication error")
except KeyboardInterrupt:
print("Bye")

50
examples/write.py
View File

@@ -1,50 +0,0 @@
import mfrc522
from os import uname
def do_write():
if uname()[0] == 'WiPy':
rdr = mfrc522.MFRC522("GP14", "GP16", "GP15", "GP22", "GP17")
elif uname()[0] == 'esp8266':
rdr = mfrc522.MFRC522(0, 2, 4, 5, 14)
else:
raise RuntimeError("Unsupported platform")
print("")
print("Place card before reader to write address 0x08")
print("")
try:
while True:
(stat, tag_type) = rdr.request(rdr.REQIDL)
if stat == rdr.OK:
(stat, raw_uid) = rdr.anticoll()
if stat == rdr.OK:
print("New card detected")
print(" - tag type: 0x%02x" % tag_type)
print(" - uid : 0x%02x%02x%02x%02x" % (raw_uid[0], raw_uid[1], raw_uid[2], raw_uid[3]))
print("")
if rdr.select_tag(raw_uid) == rdr.OK:
key = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF]
if rdr.auth(rdr.AUTHENT1A, 8, key, raw_uid) == rdr.OK:
stat = rdr.write(8, b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f")
rdr.stop_crypto1()
if stat == rdr.OK:
print("Data written to card")
else:
print("Failed to write data to card")
else:
print("Authentication error")
else:
print("Failed to select tag")
except KeyboardInterrupt:
print("Bye")

80
mfrc522.py
View File

@@ -4,6 +4,7 @@ from os import uname
class MFRC522:
DEBUG = False
OK = 0
NOTAGERR = 1
ERR = 2
@@ -13,6 +14,11 @@ class MFRC522:
AUTHENT1A = 0x60
AUTHENT1B = 0x61
PICC_ANTICOLL1 = 0x93
PICC_ANTICOLL2 = 0x95
PICC_ANTICOLL3 = 0x97
def __init__(self, sck, mosi, miso, rst, cs):
self.sck = Pin(sck, Pin.OUT)
@@ -29,7 +35,7 @@ class MFRC522:
if board == 'WiPy' or board == 'LoPy' or board == 'FiPy':
self.spi = SPI(0)
self.spi.init(SPI.MASTER, baudrate=1000000, pins=(self.sck, self.mosi, self.miso))
elif board == 'esp8266':
elif (board == 'esp8266') or (board == 'esp32'):
self.spi = SPI(baudrate=100000, polarity=0, phase=0, sck=self.sck, mosi=self.mosi, miso=self.miso)
self.spi.init()
else:
@@ -170,10 +176,10 @@ class MFRC522:
return stat, bits
def anticoll(self):
def anticoll(self,anticolN):
ser_chk = 0
ser = [0x93, 0x20]
ser = [anticolN, 0x20]
self._wreg(0x0D, 0x00)
(stat, recv, bits) = self._tocard(0x0C, ser)
@@ -189,12 +195,67 @@ class MFRC522:
return stat, recv
def select_tag(self, ser):
buf = [0x93, 0x70] + ser[:5]
buf += self._crc(buf)
(stat, recv, bits) = self._tocard(0x0C, buf)
return self.OK if (stat == self.OK) and (bits == 0x18) else self.ERR
def PcdSelect(self, serNum,anticolN):
backData = []
buf = []
buf.append(anticolN)
buf.append(0x70)
i = 0
while i<5:
buf.append(serNum[i])
i = i + 1
pOut = self._crc(buf)
buf.append(pOut[0])
buf.append(pOut[1])
(status, backData, backLen) = self._tocard( 0x0C, buf)
if (status == self.OK) and (backLen == 0x18):
return 1
else:
return 0
def SelectTagSN(self):
valid_uid=[]
(status,uid)= self.anticoll(self.PICC_ANTICOLL1)
if status != self.OK:
return (self.ERR,[])
if self.DEBUG: print("anticol(1) {}".format(uid))
if self.PcdSelect(uid,self.PICC_ANTICOLL1) == 0:
return (self.MI_ERR,[])
if self.DEBUG: print("pcdSelect(1) {}".format(uid))
#check if first byte is 0x88
if uid[0] == 0x88 :
#ok we have another type of card
valid_uid.extend(uid[1:4])
(status,uid)=self.anticoll(self.PICC_ANTICOLL2)
if status != self.OK:
return (self.ERR,[])
if self.DEBUG: print("Anticol(2) {}".format(uid))
rtn = self.PcdSelect(uid,self.PICC_ANTICOLL2)
if self.DEBUG: print("pcdSelect(2) return={} uid={}".format(rtn,uid))
if rtn == 0:
return (self.ERR,[])
if self.DEBUG: print("PcdSelect2() {}".format(uid))
#now check again if uid[0] is 0x88
if uid[0] == 0x88 :
valid_uid.extend(uid[1:4])
(status , uid) = self.anticoll(self.PICC_ANTICOLL3)
if status != self.OK:
return (self.ERR,[])
if self.DEBUG: print("Anticol(3) {}".format(uid))
if self.MFRC522_PcdSelect(uid,self.PICC_ANTICOLL3) == 0:
return (self.ERR,[])
if self.DEBUG: print("PcdSelect(3) {}".format(uid))
valid_uid.extend(uid[0:4])
return (self.OK , valid_uid)
def auth(self, mode, addr, sect, ser):
return self._tocard(0x0E, [mode, addr] + sect + ser[:4])[0]
@@ -227,3 +288,6 @@ class MFRC522:
stat = self.ERR
return stat