def init():
#somehow enables piface
pifacedigital = pifacedigitalio.PiFaceDigital()
#######################################################################
# IO expander setup SPI piFace2 (for conveyor relay control)
#######################################################################
wiringpi.mcp23s17Setup(PIFACE, 0, 0)
def enable_device():
"""enable the specified device """
try:
devices = cm.hardware.devices
for key in devices.keys():
device = key
device_slaves = devices[key]
if device.lower() == "mcp23008":
for slave in device_slaves:
params = slave
wiringpi.mcp23008Setup(int(params['pinBase']),
int(params['i2cAddress'], 16))
elif device.lower() == "mcp23s08":
for slave in device_slaves:
params = slave
wiringpi.mcp23s08Setup(int(params['pinBase']),
int(params['spiPort'], 16),
int(params['devId']))
elif device.lower() == "mcp23016":
for slave in device_slaves:
params = slave
wiringpi.mcp23016Setup(int(params['pinBase']),
int(params['i2cAddress'], 16))
elif device.lower() == "mcp23017":
for slave in device_slaves:
params = slave
wiringpi.mcp23017Setup(int(params['pinBase']),
int(params['i2cAddress'], 16))
elif device.lower() == "mcp23s17":
for slave in device_slaves:
params = slave
wiringpi.mcp23s17Setup(int(params['pinBase']),
int(params['spiPort'], 16),
int(params['devId']))
elif device.lower() == "sr595":
for slave in device_slaves:
params = slave
wiringpi.sr595Setup(int(params['pinBase']),
int(params['numPins']),
int(params['dataPin']),
int(params['clockPin']),
int(params['latchPin']))
elif device.lower() == "pcf8574":
for slave in device_slaves:
params = slave
wiringpi.pcf8574Setup(int(params['pinBase']),
int(params['i2cAddress'], 16))
else:
logging.error(
"Device defined is not supported, please check "
"your devices settings: " + str(device))
except Exception as error:
logging.debug(
"Error setting up devices, please check your devices "
"settings.")
logging.debug(error)