From ceec171c42bd79f1762b971569e20ead656f4fd0 Mon Sep 17 00:00:00 2001 From: Cody Hiar Date: Sun, 27 May 2018 15:29:21 -0600 Subject: Moving libs into separate own directory --- Adafruit_Python_GPIO/Adafruit_GPIO/PCF8574.py | 94 --------------------------- 1 file changed, 94 deletions(-) delete mode 100644 Adafruit_Python_GPIO/Adafruit_GPIO/PCF8574.py (limited to 'Adafruit_Python_GPIO/Adafruit_GPIO/PCF8574.py') diff --git a/Adafruit_Python_GPIO/Adafruit_GPIO/PCF8574.py b/Adafruit_Python_GPIO/Adafruit_GPIO/PCF8574.py deleted file mode 100644 index 02919d1..0000000 --- a/Adafruit_Python_GPIO/Adafruit_GPIO/PCF8574.py +++ /dev/null @@ -1,94 +0,0 @@ -''' -Adafruit compatible using BaseGPIO class to represent a PCF8574/A IO expander -Copyright (C) 2015 Sylvan Butler - -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -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.''' - -import Adafruit_GPIO as GPIO -import Adafruit_GPIO.I2C as I2C - - - -IN = GPIO.IN -OUT = GPIO.OUT -HIGH = GPIO.HIGH -LOW = GPIO.LOW - - -class PCF8574(GPIO.BaseGPIO): - """Class to represent a PCF8574 or PCF8574A GPIO extender. Compatible - with the Adafruit_GPIO BaseGPIO class so it can be used as a custom GPIO - class for interacting with device. - """ - - NUM_GPIO = 8 - - def __init__(self, address=0x27, busnum=None, i2c=None, **kwargs): - address = int(address) - self.__name__ = \ - "PCF8574" if address in range(0x20, 0x28) else \ - "PCF8574A" if address in range(0x38, 0x40) else \ - "Bad address for PCF8574(A): 0x%02X not in range [0x20..0x27, 0x38..0x3F]" % address - if self.__name__[0] != 'P': - raise ValueError(self.__name__) - # Create I2C device. - i2c = i2c or I2C - busnum = busnum or i2c.get_default_bus() - self._device = i2c.get_i2c_device(address, busnum, **kwargs) - # Buffer register values so they can be changed without reading. - self.iodir = 0xFF # Default direction to all inputs is in - self.gpio = 0x00 - self._write_pins() - - - def _write_pins(self): - self._device.writeRaw8(self.gpio | self.iodir) - - def _read_pins(self): - return self._device.readRaw8() & self.iodir - - - def setup(self, pin, mode): - self.setup_pins({pin: mode}) - - def setup_pins(self, pins): - if False in [y for x,y in [(self._validate_pin(pin),mode in (IN,OUT)) for pin,mode in pins.items()]]: - raise ValueError('Invalid MODE, IN or OUT') - for pin,mode in pins.items(): - self.iodir = self._bit2(self.iodir, pin, mode) - self._write_pins() - - - def output(self, pin, value): - self.output_pins({pin: value}) - - def output_pins(self, pins): - [self._validate_pin(pin) for pin in pins.keys()] - for pin,value in pins.items(): - self.gpio = self._bit2(self.gpio, pin, bool(value)) - self._write_pins() - - - def input(self, pin): - return self.input_pins([pin])[0] - - def input_pins(self, pins): - [self._validate_pin(pin) for pin in pins] - inp = self._read_pins() - return [bool(inp & (1<