kopia lustrzana https://github.com/GuyCarver/MicroPython
117 wiersze
3.2 KiB
Python
117 wiersze
3.2 KiB
Python
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import pyb
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class apds:
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_ADDRESS = const(0x39)
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# Register addresses
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REG_ENABLE = 0x80
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REG_ATIME = 0x81
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REG_WTIME = 0x83
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REG_AILTL = 0x84
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REG_AILTH = 0x85
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REG_AIHTL = 0x86
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REG_AIHTH = 0x87
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REG_PILT = 0x89
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REG_PIHT = 0x8B
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REG_PERS = 0x8C
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REG_CONFIG1 = 0x8D
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REG_PPULSE = 0x8E
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REG_CONTROL = 0x8F
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REG_CONFIG2 = 0x90
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REG_ID = 0x92
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REG_STATUS = 0x93
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REG_CDATAL = 0x94
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REG_CDATAH = 0x95
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REG_RDATAL = 0x96
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REG_RDATAH = 0x97
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REG_GDATAL = 0x98
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REG_GDATAH = 0x99
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REG_BDATAL = 0x9A
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REG_BDATAH = 0x9B
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REG_PDATA = 0x9C
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REG_POFFSET_UR = 0x9D
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REG_POFFSET_DL = 0x9E
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REG_CONFIG3 = 0x9F
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REG_GPENTH = 0xA0
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REG_GEXTH = 0xA1
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REG_GCONF1 = 0xA2
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REG_GCONF2 = 0xA3
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REG_GOFFSET_U = 0xA4
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REG_GOFFSET_D = 0xA5
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REG_GOFFSET_L = 0xA7
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REG_GOFFSET_R = 0xA9
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REG_GPULSE = 0xA6
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REG_GCONF3 = 0xAA
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REG_GCONF4 = 0xAB
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REG_GFLVL = 0xAE
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REG_GSTATUS = 0xAF
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REG_IFORCE = 0xE4
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REG_PICLEAR = 0xE5
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REG_CICLEAR = 0xE6
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REG_AICLEAR = 0xE7
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REG_GFIFO_U = 0xFC
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REG_GFIFO_D = 0xFD
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REG_GFIFO_L = 0xFE
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REG_GFIFO_R = 0xFF
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# Enable register bits
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ENABLE_GEN = 0b01000000 # Gesture enable
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ENABLE_PIEN = 0b00100000 # Proximity Interrupt Enable
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ENABLE_AIEN = 0b00010000 # ALS Interrupt Enable
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ENABLE_WEN = 0b00001000 # Wait Enable
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ENABLE_PEN = 0b00000100 # Proximity Enable
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ENABLE_AEN = 0b00000010 # ALS Enable
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ENABLE_PON = 0b00000001 # Power ON
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# Congiguration register 2
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CONFIG2_LEDBOOST_150 = (1 << 4) # LED boost 150%
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CONFIG2_LEDBOOST_200 = (2 << 4) # LED boost 200%
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CONFIG2_LEDBOOST_300 = (3 << 4) # LED boost 300%
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GCONFIG3_GDIMS_LR = 2
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GCONFIG3_GDIMS_UD = 1 # 01
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GCONFIG4_GMODE = 1 # Gesture mode
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def __init__( self, aLoc ) :
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self.i2c = pyb.I2C(aLoc, pyb.I2C.MASTER)
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self._b1 = bytearray(1)
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self.init()
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def read( self, aLoc ) :
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"""Read 8 bit value and return."""
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self.i2c.mem_read(self._b1, _ADDRESS, aLoc)
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# print('Read {:02x} from {:02x}.'.format(self._b1[0], aLoc))
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return self._b1[0]
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def write( self, aLoc, aVal ) :
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"""Write 8 bit value to given address. aVal may be an int buffer."""
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self.i2c.mem_write(aVal, _ADDRESS, aLoc)
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# print('write {:02x} to {:02x}.'.format(aVal, aLoc))
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def init( self ) :
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if self.get_device_id() != 0xAB :
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return False
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self.write(self.REG_ENABLE, self.ENABLE_PON | self.ENABLE_PEN | self.ENABLE_GEN)
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self.write(self.REG_CONFIG2, self.CONFIG2_LEDBOOST_300)
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self.write(self.REG_GPENTH, 10)
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self.write(self.REG_GEXTH, 5)
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self.write(self.REG_GOFFSET_U, 0) #70)
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self.write(self.REG_GOFFSET_D, 0)
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self.write(self.REG_GOFFSET_L, 0) #10)
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self.write(self.REG_GOFFSET_R, 0) #34)
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self.write(self.REG_GCONF3, self.GCONFIG3_GDIMS_UD | self.GCONFIG3_GDIMS_LR)
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self.write(self.REG_GCONF4, self.GCONFIG4_GMODE)
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def get_device_id( self ) :
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return self.read(self.REG_ID)
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def readgesture( self ) :
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level = self.read(self.REG_GFLVL)
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if level == 0 :
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return # no data
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fifo_u = self.read(self.REG_GFIFO_U)
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fifo_d = self.read(self.REG_GFIFO_D)
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fifo_l = self.read(self.REG_GFIFO_L)
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fifo_r = self.read(self.REG_GFIFO_R)
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return (fifo_u, fifo_d, fifo_l, fifo_r)
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