class AD345:
def __init__(self):
self.cs_pin = Pin('X5', Pin.OUT_PP, Pin.PULL_NONE)
self.cs_pin.high()
self.spi = SPI(1, SPI.MASTER, baudrate=2000000, polarity=0, phase=1, bits=8)
self.devid = self.read_id()
if self.devid == ADXL345_DEVID_VAL:
self.write_bytes(ADXL345_POWER_CTL_ADDR, bytearray([ADXL345_POWER_CTL_CONF]))
self.write_bytes(ADXL345_BW_RATE_ADDR, bytearray([ADXL345_BW_RATE_CONF]))
self.write_bytes(ADXL345_DATA_FORMAT_ADDR, bytearray([ADXL345_DATA_FORMAT_CONF]))
self.write_bytes(ADXL345_ENABLE_MSRM_ADDR, bytearray([ADXL345_ENABLE_MSRM_CONF]))
self.sensitivity = 32
else:
raise Exception('ADXL345 accelerometer not present')
def convert_raw_to_g(self, x):
if x & 0x80:
return x * self.sensitivity / 1000
def read_bytes(self, addr, nbytes):
if nbytes > 1:
addr |= READWRITE_CMD | MULTIPLEBYTE_CMD
else:
addr |= READWRITE_CMD
self.cs_pin.low()
self.spi.send(addr)
#buf = self.spi.send_recv(bytearray(nbytes * [0])) # read data, MSB first
buf = self.spi.recv(nbytes)
self.cs_pin.high()
return buf
def write_bytes(self, addr, buf):
if len(buf) > 1:
addr |= MULTIPLEBYTE_CMD
self.cs_pin.low()
self.spi.send(addr)
for b in buf:
self.spi.send(b)
self.cs_pin.high()
def read_id(self):
return self.read_bytes(DEVID_ADDR, 1)[0]
def x(self):
return self.convert_raw_to_g(self.read_bytes(DATAX1_ADDR, 1)[0])
def y(self):
return self.convert_raw_to_g(self.read_bytes(DATAY1_ADDR, 1)[0])
def z(self):
return self.convert_raw_to_g(self.read_bytes(DATAZ1_ADDR, 1)[0])
def xyz(self):
return (self.x(), self.y(), self.z())
from machine import Pin, SPI
from time import sleep_ms
# UEXT wiring on the Pyboard.
# https://github.com/mchobby/pyboard-driver/tree/master/UEXT
spi = SPI(2) # MOSI=Y8, MISO=Y7, SCK=Y6, SS=Y5
spi.init(SPI.MASTER, baudrate=5000000, phase=0, polarity=0)
# We must manage the SS signal ourself
ss = Pin(Pin.board.Y5, Pin.OUT)
# Start a new SPI transaction
ss.value(1)
sleep_ms(10)
ss.value(0)
print("Write a A on the screen")
spi.send(bytes([0x80, 0x00, 0x41]))
sleep_ms(500)
# Now, read back the memory
# Start a new SPI transaction
ss.value(1)
sleep_ms(10)
ss.value(0)
spi.send(bytes([0x00, 0x00]))
v = spi.recv(1) # read one byte
print("Response:")
print(v) # bytes
print("0x%02x" % v[0]) # print as Hexa
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
from machine import Pin, SPI
from time import sleep_ms
# UEXT wiring on the Pyboard.
# https://github.com/mchobby/pyboard-driver/tree/master/UEXT
spi = SPI(2) # MOSI=Y8, MISO=Y7, SCK=Y6, SS=Y5
spi.init(SPI.MASTER, baudrate=5000000, phase=0, polarity=0)
# We must manage the SS signal ourself
ss = Pin(Pin.board.Y5, Pin.OUT)
# Start a new SPI transaction
ss.value(1)
sleep_ms(10)
ss.value(0)
print("Read IDCode from GameDuino (0x6d expected)")
spi.send(bytes([0x28, 0x00]))
buf = bytearray(1)
spi.recv(buf) # read 1 byte
print("Response:")
print(buf) # bytes
print("0x%02x" % buf[0]) # print as Hexa
class MFRC522(object):
""" class for interacting with the 'RC522' NFC reader chip """
MI_OK = 0
MI_NOTAGERR = 1
MI_ERR = 2
PCD_IDLE = 0x00
PCD_AUTHENT = 0x0E
PCD_RECEIVE = 0x08
PCD_TRANSMIT = 0x04
PCD_TRANSCEIVE = 0x0C
PCD_RESETPHASE = 0x0F
PCD_CALCCRC = 0x03
PICC_REQIDL = 0x26
PICC_REQALL = 0x52
PICC_ANTICOLL = 0x93
PICC_SElECTTAG = 0x93
PICC_AUTHENT1A = 0x60
PICC_AUTHENT1B = 0x61
PICC_READ = 0x30
PICC_WRITE = 0xA0
PICC_DECREMENT = 0xC0
PICC_INCREMENT = 0xC1
PICC_RESTORE = 0xC2
PICC_TRANSFER = 0xB0
PICC_HALT = 0x50
Reserved00 = 0x00
CommandReg = 0x01
CommIEnReg = 0x02
DivlEnReg = 0x03
CommIrqReg = 0x04
DivIrqReg = 0x05
ErrorReg = 0x06
Status1Reg = 0x07
Status2Reg = 0x08
FIFODataReg = 0x09
FIFOLevelReg = 0x0A
WaterLevelReg = 0x0B
ControlReg = 0x0C
BitFramingReg = 0x0D
CollReg = 0x0E
Reserved01 = 0x0F
Reserved10 = 0x10
ModeReg = 0x11
TxModeReg = 0x12
RxModeReg = 0x13
TxControlReg = 0x14
TxAutoReg = 0x15
TxSelReg = 0x16
RxSelReg = 0x17
RxThresholdReg = 0x18
DemodReg = 0x19
Reserved11 = 0x1A
Reserved12 = 0x1B
MifareReg = 0x1C
Reserved13 = 0x1D
Reserved14 = 0x1E
SerialSpeedReg = 0x1F
Reserved20 = 0x20
CRCResultRegM = 0x21
CRCResultRegL = 0x22
Reserved21 = 0x23
ModWidthReg = 0x24
Reserved22 = 0x25
RFCfgReg = 0x26
GsNReg = 0x27
CWGsPReg = 0x28
ModGsPReg = 0x29
TModeReg = 0x2A
TPrescalerReg = 0x2B
TReloadRegH = 0x2C
TReloadRegL = 0x2D
TCounterValueRegH = 0x2E
TCounterValueRegL = 0x2F
Reserved30 = 0x30
TestSel1Reg = 0x31
TestSel2Reg = 0x32
TestPinEnReg = 0x33
TestPinValueReg = 0x34
TestBusReg = 0x35
AutoTestReg = 0x36
VersionReg = 0x37
AnalogTestReg = 0x38
TestDAC1Reg = 0x39
TestDAC2Reg = 0x3A
TestADCReg = 0x3B
Reserved31 = 0x3C
Reserved32 = 0x3D
Reserved33 = 0x3E
Reserved34 = 0x3F
MAX_LEN = 16
serNum = []
def __init__(self):
''' init the interface '''
if not MPY_ESP8266:
# PYB specific use
self.nrstpd = pyb.Pin(pyb.Pin.cpu.B10, pyb.Pin.OUT) # sets the pin to output
self.nenbrc522 = pyb.Pin(pyb.Pin.cpu.A4, pyb.Pin.OUT) # sets the pin to output
self.nenbrc522.high() # deselect device
self.nrstpd.low() # put it in power down mode
# reader has stable data on rising edge of signal (phase 0), clock is high active (polarity 0)
self.spi = SPI(1, SPI.MASTER, baudrate=1000000, polarity=0, phase=0, firstbit=SPI.MSB) # default pins for SPI1 are selected
else:
# ESP8266 specific use
self.nrstpd = machine.Pin(0, machine.Pin.OUT) # sets the pin to output
self.nenbrc522 = machine.Pin(2, machine.Pin.OUT) # sets the pin to output
self.nenbrc522.high() # deselect device
self.nrstpd.low() # put it in power down mode
# reader has stable data on rising edge of signal (phase 0), clock is high active (polarity 0)
self.spi = SPI(SPI.MASTER, baudrate=1000000, polarity=0, phase=0, firstbit=SPI.MSB) # default pins for SPI are selected
# go configure yourself
self.MFRC522_Init()
def Write_MFRC522(self, addr, val):
data = bytearray(2)
data[0] = (addr<<1) & 0x7E
data[1] = val
self.nenbrc522.low() # start the transaction
if not MPY_ESP8266:
self.spi.send(data) # transfer two bytes to the chip
else:
self.spi.write(data) # transfer buffer
self.nenbrc522.high() # finished it
def Read_MFRC522(self, addr):
data = bytearray(2)
buf = bytearray(2) # could reuse data instead of using buf
data[0] = ((addr<<1)&0x7E) | 0x80
data[1] = 0x00
self.nenbrc522.low() # start transaction
if not MPY_ESP8266:
self.spi.send_recv(data,buf) # send data and read two bytes back
else:
self.spi.write_readinto(data,buf) # send data and read two bytes back
self.nenbrc522.high() # transaction ended
return buf[1]
def MFRC522_Reset(self):
self.Write_MFRC522(self.CommandReg, self.PCD_RESETPHASE)
def SetBitMask(self, reg, mask):
tmp = self.Read_MFRC522(reg)
self.Write_MFRC522(reg, tmp | mask)
def ClearBitMask(self, reg, mask):
tmp = self.Read_MFRC522(reg);
self.Write_MFRC522(reg, tmp & (~mask))
def AntennaOn(self):
temp = self.Read_MFRC522(self.TxControlReg)
if (~(temp & 0x03)):
self.SetBitMask(self.TxControlReg, 0x03)
def AntennaOff(self):
self.ClearBitMask(self.TxControlReg, 0x03)
def MFRC522_ToCard(self,command,sendData):
backData = []
backLen = 0
status = self.MI_ERR
irqEn = 0x00
waitIRq = 0x00
lastBits = None
n = 0
i = 0
if command == self.PCD_AUTHENT:
irqEn = 0x12
waitIRq = 0x10
if command == self.PCD_TRANSCEIVE:
irqEn = 0x77
waitIRq = 0x30
self.Write_MFRC522(self.CommIEnReg, irqEn|0x80)
self.ClearBitMask(self.CommIrqReg, 0x80)
self.SetBitMask(self.FIFOLevelReg, 0x80)
self.Write_MFRC522(self.CommandReg, self.PCD_IDLE);
while(i<len(sendData)):
self.Write_MFRC522(self.FIFODataReg, sendData[i])
i = i+1
self.Write_MFRC522(self.CommandReg, command)
if command == self.PCD_TRANSCEIVE:
self.SetBitMask(self.BitFramingReg, 0x80)
i = 2000
while True:
n = self.Read_MFRC522(self.CommIrqReg)
i = i - 1
if ~((i!=0) and ~(n&0x01) and ~(n&waitIRq)):
break
self.ClearBitMask(self.BitFramingReg, 0x80)
if i != 0:
if (self.Read_MFRC522(self.ErrorReg) & 0x1B)==0x00:
status = self.MI_OK
if n & irqEn & 0x01:
status = self.MI_NOTAGERR
if command == self.PCD_TRANSCEIVE:
n = self.Read_MFRC522(self.FIFOLevelReg)
lastBits = self.Read_MFRC522(self.ControlReg) & 0x07
if lastBits != 0:
backLen = (n-1)*8 + lastBits
else:
backLen = n*8
if n == 0:
n = 1
if n > self.MAX_LEN:
n = self.MAX_LEN
i = 0
while i<n:
backData.append(self.Read_MFRC522(self.FIFODataReg))
i = i + 1;
else:
status = self.MI_ERR
return (status,backData,backLen)
def MFRC522_Request(self, reqMode):
status = None
backBits = None
TagType = []
self.Write_MFRC522(self.BitFramingReg, 0x07)
TagType.append(reqMode);
(status,backData,backBits) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, TagType)
if ((status != self.MI_OK) | (backBits != 0x10)):
status = self.MI_ERR
return (status,backBits)
def MFRC522_Anticoll(self):
backData = []
serNumCheck = 0
serNum = []
self.Write_MFRC522(self.BitFramingReg, 0x00)
serNum.append(self.PICC_ANTICOLL)
serNum.append(0x20)
(status,backData,backBits) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE,serNum)
if (status == self.MI_OK):
i = 0
if len(backData)==5:
while i<4:
serNumCheck = serNumCheck ^ backData[i]
i = i + 1
if serNumCheck != backData[i]:
status = self.MI_ERR
else:
status = self.MI_ERR
return (status,backData)
def CalulateCRC(self, pIndata):
self.ClearBitMask(self.DivIrqReg, 0x04)
self.SetBitMask(self.FIFOLevelReg, 0x80);
i = 0
while i<len(pIndata):
self.Write_MFRC522(self.FIFODataReg, pIndata[i])
i = i + 1
self.Write_MFRC522(self.CommandReg, self.PCD_CALCCRC)
i = 0xFF
while True:
n = self.Read_MFRC522(self.DivIrqReg)
i = i - 1
if not ((i != 0) and not (n&0x04)):
break
pOutData = []
pOutData.append(self.Read_MFRC522(self.CRCResultRegL))
pOutData.append(self.Read_MFRC522(self.CRCResultRegM))
return pOutData
def MFRC522_SelectTag(self, serNum):
backData = []
buf = []
buf.append(self.PICC_SElECTTAG)
buf.append(0x70)
i = 0
while i<5:
buf.append(serNum[i])
i = i + 1
pOut = self.CalulateCRC(buf)
buf.append(pOut[0])
buf.append(pOut[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, buf)
if (status == self.MI_OK) and (backLen == 0x18):
print ("Size: " + str(backData[0]))
return backData[0]
else:
return 0
def MFRC522_Auth(self, authMode, BlockAddr, Sectorkey, serNum):
buff = []
# First byte should be the authMode (A or B)
buff.append(authMode)
# Second byte is the trailerBlock (usually 7)
buff.append(BlockAddr)
# Now we need to append the authKey which usually is 6 bytes of 0xFF
i = 0
while(i < len(Sectorkey)):
buff.append(Sectorkey[i])
i = i + 1
i = 0
# Next we append the first 4 bytes of the UID
while(i < 4):
buff.append(serNum[i])
i = i +1
# Now we start the authentication itself
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_AUTHENT,buff)
# Check if an error occurred
if not(status == self.MI_OK):
print ("AUTH ERROR!!")
if not (self.Read_MFRC522(self.Status2Reg) & 0x08) != 0:
print ("AUTH ERROR(status2reg & 0x08) != 0" )
# Return the status
return status
def MFRC522_StopCrypto1(self):
self.ClearBitMask(self.Status2Reg, 0x08)
def MFRC522_Read(self, blockAddr):
recvData = []
recvData.append(self.PICC_READ)
recvData.append(blockAddr)
pOut = self.CalulateCRC(recvData)
recvData.append(pOut[0])
recvData.append(pOut[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, recvData)
if not(status == self.MI_OK):
print ("Error while reading!")
i = 0
if len(backData) == 16:
print ("Sector "+str(blockAddr)+" "+str(backData))
def MFRC522_Write(self, blockAddr, writeData):
buff = []
buff.append(self.PICC_WRITE)
buff.append(blockAddr)
crc = self.CalulateCRC(buff)
buff.append(crc[0])
buff.append(crc[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, buff)
if not(status == self.MI_OK) or not(backLen == 4) or not((backData[0] & 0x0F) == 0x0A):
status = self.MI_ERR
print (str(backLen)+" backdata &0x0F == 0x0A "+str(backData[0]&0x0F))
if status == self.MI_OK:
i = 0
buf = []
while i < 16:
buf.append(writeData[i])
i = i + 1
crc = self.CalulateCRC(buf)
buf.append(crc[0])
buf.append(crc[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE,buf)
if not(status == self.MI_OK) or not(backLen == 4) or not((backData[0] & 0x0F) == 0x0A):
print ("Error while writing")
if status == self.MI_OK:
print ("Data written")
def MFRC522_DumpClassic1K(self, key, uid):
''' dump the entire 1K of data '''
i = 0
while i < 64:
status = self.MFRC522_Auth(self.PICC_AUTHENT1A, i, key, uid)
# Check if authenticated
if status == self.MI_OK:
self.MFRC522_Read(i)
else:
print ("Authentication error")
i = i+1
def MFRC522_Version(self):
''' return version of silicon
used reader returned 0x11 expected 0x91 (so we missed one bit?)
'''
val = self.Read_MFRC522(self.VersionReg) & 0x0F
return val
def MFRC522_ReceiverGain(self):
''' the receiver gain is variable from 18 to 48dB '''
#self.Write_MFRC522(self.RFCfgReg, 0x4<<4)
val = (self.Read_MFRC522(self.RFCfgReg) & 0x7F) >> 4
if (val==0) or (val==2):
val = 18
elif (val==1) or (val==3):
val = 23
elif val==4:
val = 33
elif val==5:
val=38
elif val==6:
val=43
else:
val=48
return val
def MFRC522_Init(self):
''' init the device registers '''
self.nrstpd.high() # get it out of reset
self.MFRC522_Reset();
if not MPY_ESP8266:
pyb.delay(500)
else:
time.sleep_ms(500)
print("MFRC522 version is " + str(self.MFRC522_Version() ) )
print("Receiver gain is " + str(self.MFRC522_ReceiverGain()) + "dB")
self.Write_MFRC522(self.TModeReg, 0x8D)
self.Write_MFRC522(self.TPrescalerReg, 0x3E)
self.Write_MFRC522(self.TReloadRegL, 30)
self.Write_MFRC522(self.TReloadRegH, 0)
self.Write_MFRC522(self.TxAutoReg, 0x40)
self.Write_MFRC522(self.ModeReg, 0x3D)
self.AntennaOn()
def MFRC522_DeInit(self):
''' turn it off and sleep '''
self.AntennaOff()
self.nenbrc522.high()
self.nrstpd.low() # put the chip into power down
self.spi.deinit() # turn off SPI bus
from time import sleep_ms # UEXT wiring on the Pyboard. # https://github.com/mchobby/pyboard-driver/tree/master/UEXT spi = SPI(2) # MOSI=Y8, MISO=Y7, SCK=Y6, SS=Y5 spi.init( baudrate=5000000, phase=0, polarity=0 ) # We must manage the SS signal ourself ss = Pin( Pin.board.Y5, Pin.OUT ) # Start a new SPI transaction ss.value( 1 ) sleep_ms( 10 ) ss.value( 0 ) print( "Write a A on the screen" ) spi.send( bytes([0x80,0x00,0x41]) ) sleep_ms( 500 ) # Now, read back the memory # Start a new SPI transaction ss.value( 1 ) sleep_ms( 10 ) ss.value( 0 ) spi.send( bytes([0x00,0x00]) ) v = spi.recv( 1 ) # read one byte print( "Response:" ) print( v ) # bytes print( "0x%02x" % v[0] ) # print as Hexa
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. """ from machine import Pin, SPI from time import sleep_ms # UEXT wiring on the Pyboard. # https://github.com/mchobby/pyboard-driver/tree/master/UEXT spi = SPI(2) # MOSI=Y8, MISO=Y7, SCK=Y6, SS=Y5 spi.init( baudrate=5000000, phase=0, polarity=0 ) # We must manage the SS signal ourself ss = Pin( Pin.board.Y5, Pin.OUT ) # Start a new SPI transaction ss.value( 1 ) sleep_ms( 10 ) ss.value( 0 ) print( "Read IDCode from GameDuino (0x6d expected)" ) spi.send( bytes([0x28,0x00]) ) buf = bytearray(1) spi.recv( buf ) # read 1 byte print( "Response:" ) print( buf ) # bytes print( "0x%02x" % buf[0] ) # print as Hexa
