def main():
parser = argparse.ArgumentParser(description='read sensor values from a Phidgets device')
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('-d', '--digital', metavar='<input id>', type=int, help='read from a digital input')
group.add_argument('-a', '--analog', metavar='<sensor id>', type=int, help='read from an analog sensor')
parser.add_argument('-t', '--temperature-sensor', action='store_const', const=True, default=False, help='device is a temperature sensor, output in degrees celcius. must be reading an analog sensor')
parser.add_argument('-m', '--precision-light-sensor-multiplier', metavar='<multiplier>', type=float, help='\'m\' value from the underside of the precision light sensor. must be reading an analog sensor')
parser.add_argument('-b', '--precision-light-sensor-boost', metavar='<boost>', type=float, help='\'b\' value from the underside of the precision light sensor. must be reading an analog sensor')
cli_args = parser.parse_args()
try:
device = InterfaceKit()
except RuntimeError as e:
print("Runtime Error: %s" % e.message)
exit(2)
try:
device.openPhidget()
device.waitForAttach(1000)
if cli_args.digital != None:
if cli_args.digital < device.getInputCount():
print device.getInputState(cli_args.digital)
else:
parser.print_usage()
print('%s: error: input id out of range (maximum is %d)' % (sys.argv[0], device.getInputCount()-1))
elif cli_args.analog != None:
if cli_args.analog < device.getSensorCount():
if cli_args.temperature_sensor == True:
print (float(device.getSensorValue(cli_args.analog)) * 0.2222) - 61.1111
elif (cli_args.precision_light_sensor_multiplier == None) != (cli_args.precision_light_sensor_boost == None):
parser.print_usage()
print('%s: error: you must supply both precision light sensor arguments')
elif cli_args.precision_light_sensor_multiplier != None and cli_args.precision_light_sensor_boost != None:
print (cli_args.precision_light_sensor_multiplier * float(device.getSensorValue(cli_args.analog)) + cli_args.precision_light_sensor_boost)
else:
print device.getSensorValue(cli_args.analog)
else:
parser.print_usage()
print('%s: error: sensor id out of range (maximum is %d)' % (sys.argv[0], device.getSensorCount()-1))
device.closePhidget()
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
try:
device.closePhidget()
except PhidgetException as e:
print("Phidget Exception %i: %s" % (e.code, e.details))
print("Exiting...")
exit(1)
exit(0)
