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Added reset keyword #37

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Merged
merged 1 commit into from
Jan 15, 2021
Merged

Added reset keyword #37

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11 changes: 6 additions & 5 deletions adafruit_mcp230xx/mcp23008.py
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Original file line number Diff line number Diff line change
Expand Up @@ -37,13 +37,14 @@ class MCP23008(MCP230XX):
at the specified I2C address.
"""

def __init__(self, i2c, address=_MCP23008_ADDRESS):
def __init__(self, i2c, address=_MCP23008_ADDRESS, reset=True):
super().__init__(i2c, address)

# Reset to all inputs with no pull-ups and no inverted polarity.
self.iodir = 0xFF
self.gppu = 0x00
self._write_u8(_MCP23008_IPOL, 0x00)
if reset:
# Reset to all inputs with no pull-ups and no inverted polarity.
self.iodir = 0xFF
self.gppu = 0x00
self._write_u8(_MCP23008_IPOL, 0x00)

@property
def gpio(self):
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9 changes: 5 additions & 4 deletions adafruit_mcp230xx/mcp23016.py
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Expand Up @@ -45,12 +45,13 @@ class MCP23016(MCP230XX):
at the specified I2C address.
"""

def __init__(self, i2c, address=_MCP23016_ADDRESS):
def __init__(self, i2c, address=_MCP23016_ADDRESS, reset=True):
super().__init__(i2c, address)

# Reset to all inputs and no inverted polarity.
self.iodir = 0xFFFF
self._write_u16le(_MCP23016_IPOL0, 0x0000)
if reset:
# Reset to all inputs and no inverted polarity.
self.iodir = 0xFFFF
self._write_u16le(_MCP23016_IPOL0, 0x0000)

@property
def gpio(self):
Expand Down
13 changes: 7 additions & 6 deletions adafruit_mcp230xx/mcp23017.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,13 +45,14 @@ class MCP23017(MCP230XX):
at the specified I2C address.
"""

def __init__(self, i2c, address=_MCP23017_ADDRESS):
def __init__(self, i2c, address=_MCP23017_ADDRESS, reset=True):
super().__init__(i2c, address)
# Reset to all inputs with no pull-ups and no inverted polarity.
self.iodir = 0xFFFF
self.gppu = 0x0000
self.iocon = 0x4 # turn on IRQ Pins as open drain
self._write_u16le(_MCP23017_IPOLA, 0x0000)
if reset:
# Reset to all inputs with no pull-ups and no inverted polarity.
self.iodir = 0xFFFF
self.gppu = 0x0000
self.iocon = 0x4 # turn on IRQ Pins as open drain
self._write_u16le(_MCP23017_IPOLA, 0x0000)

@property
def gpio(self):
Expand Down