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MAX14662.py
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MAX14662.py
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# 8 channel SPST switch
from smbus2 import SMBus
bus = SMBus(1)
slave_address = 0x4c
reg_address = 0x0 # device has only one register
off = 0x0
sw1 = 0x1
sw2 = 0x3
sw3 = 0x7
sw4 = 0xF
sw5 = 0x1F
sw6 = 0x3F
sw7 = 0x7F
sw8 = 0xFF
class MAX14662:
_readFn = None
_writeFn = None
def __init__(self, readFn, writeFn):
self._readFn = readFn
self._writeFn = writeFn
def _read_reg(self):
val = self._readFn(slave_address, reg_address, 1)
return val
def switch_off(self):
self._writeFn(slave_address, reg_address, [off])
def switch1(self):
self._writeFn(slave_address, reg_address, [sw1])
def switch2(self):
self._writeFn(slave_address, reg_address, [sw2])
def switch3(self):
self._writeFn(slave_address, reg_address, [sw3])
def switch4(self):
self._writeFn(slave_address, reg_address, [sw4])
def switch5(self):
self._writeFn(slave_address, reg_address, [sw5])
def switch6(self):
self._writeFn(slave_address, reg_address, [sw6])
def switch7(self):
self._writeFn(slave_address, reg_address, [sw7])
def switch8(self):
self._writeFn(slave_address, reg_address, [sw8])
turn = MAX14662(bus.read_i2c_block_data, bus.write_i2c_block_data)
turn.switch1()
turn.switch_off()