class VoltageRatioSensor(Sensor):
'''Class used to handle any sensor which uses a ratiometric voltage input '''
def __init__(self,
deviceSN,
channelNo,
dataInterval,
refreshPeriod,
sensorType,
sensorName=None):
'''
Connects the sensor to the application
'''
self.channelNo = channelNo
self.sensorType = sensorType
self.sensorUnits = None
Sensor.__init__(self, deviceSN, dataInterval, refreshPeriod,
sensorName)
def attachSensor(self):
'''
Connects the sensor to the application
'''
self.channel = VoltageRatioInput()
self.channel.setDeviceSerialNumber(self.deviceSN)
self.channel.setChannel(self.channelNo)
self.channel.openWaitForAttachment(100)
print("\n***** {} Sensor Attached *****".format(self.sensorName))
self.attached = True
self.channel.setSensorType(self.sensorType)
self.channel.setDataInterval(self.dataInterval)
self.sensorUnits = self.channel.getSensorUnit().symbol
def activateDataListener(self):
'''
Sets up the event which triggers when the sensor updates its outputs
'''
self.startTime = time.time()
def onSensorValueChange(channelObject, sensorVlue, sensorUnit):
rawTime = time.time()
deltaTime = rawTime - self.startTime
self.dataQ.put(
[channelObject.getSensorValue(), deltaTime, rawTime])
self.channel.setOnSensorChangeHandler(onSensorValueChange)
def main():
ir_reflective_sensor = VoltageRatioInput()
ir_reflective_sensor.setChannel(5)
ir_reflective_sensor.setOnSensorChangeHandler(on_ir_change)
ir_reflective_sensor.openWaitForAttachment(5000)
ir_reflective_sensor.setSensorType(VoltageRatioSensorType.SENSOR_TYPE_1103)
sharp_distance_sensor_left = VoltageRatioInput()
sharp_distance_sensor_left.setChannel(6)
sharp_distance_sensor_left.setOnSensorChangeHandler(on_sharp_change)
sharp_distance_sensor_left.openWaitForAttachment(5000)
sharp_distance_sensor_left.setSensorType(
VoltageRatioSensorType.SENSOR_TYPE_1101_SHARP_2Y0A21)
sharp_distance_sensor_right = VoltageRatioInput()
sharp_distance_sensor_right.setChannel(7)
sharp_distance_sensor_right.setOnSensorChangeHandler(on_sharp_change)
sharp_distance_sensor_right.openWaitForAttachment(5000)
sharp_distance_sensor_right.setSensorType(
VoltageRatioSensorType.SENSOR_TYPE_1101_SHARP_2Y0A21)
while True:
pass
ir_reflective_sensor.close()
sharp_distance_sensor_left.close()
sharp_distance_sensor_right.close()
class jigCurrent(object):
'''current sensor'''
def __init__(self, provider, channel):
self.ai = VoltageRatioInput()
self.ai.setDeviceSerialNumber(provider)
self.ai.setChannel(channel)
self.ai.setOnAttachHandler(self._attached)
self.ai.openWaitForAttachment(1000)
def _attached(self, event):
self.ai.setSensorType(VoltageRatioSensorType.SENSOR_TYPE_1122_DC)
self.ai.setDataInterval(100)
self.ai.setVoltageRatioChangeTrigger(0)
@property
def current(self):
return self.ai.getSensorValue()
@property
def unitInfo(self):
return self.ai.getSensorUnit()
def main():
#Create your Phidget channels
voltageRatioInput0 = VoltageRatioInput()
#Set addressing parameters to specify which channel to open (if any)
#Assign any event handlers you need before calling open so that no events are missed.
voltageRatioInput0.setOnSensorChangeHandler(onSensorChange)
#Open your Phidgets and wait for attachment
voltageRatioInput0.openWaitForAttachment(5000)
#Do stuff with your Phidgets here or in your event handlers.
#Set the sensor type to match the analog sensor you are using after opening the Phidget
voltageRatioInput0.setSensorType(VoltageRatioSensorType.SENSOR_TYPE_1111)
try:
input("Press Enter to Stop\n")
except (Exception, KeyboardInterrupt):
pass
#Close your Phidgets once the program is done.
voltageRatioInput0.close()