Page Comparison

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Phidget Input Parameter List

Name	Description	How Used?
DeviceType	Specify the type of device that requires interaction. Supported values are: PhidgetRFID, PhidgetTextLCD, PhidgetGPS, PhidgetInterfaceKit, PhidgetAdvancedServo	DeviceType is passed as a modifier to Invoke. <Invoke Method="Get" DeviceType="PhidgetInterfaceKit"/>
SerialNumber	This represents the interface port number to which the sensor or motor is connected.	SerialNumber is passed as a modifier to Invoke
ServoAngle	Angle to be applied to a Advanced Servo Motor.	ServoAngle is passed as a payload to Invoke wrapped within Message/Value container. <Invoke Method="Post" DeviceType="PhidgetTextLCD"> <Message><Value><ServoAngle>110.0</ServoAngle></Value></Message> </Invoke>
Simulated	Simulates Sensor Behavior by sending random integer values between 1 and 100
-	Some time if you need to pass a String value to the handler as input - usually in case of RFID Writer or LCD Text Display, you can pass it as part of <Message><Value>Hello</Value></Message> as payload to Invoke.	Payload of <Invoke>. <Invoke Method="Post" DeviceType="PhidgetTextLCD"> <Message><Value>Hello</Value></Message> </Invoke>

Phidget Output Format

Output from the Phidget Handler is simply a text value.

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Reading Data from a GPS Sensor

Note that GPS sensor is directly attached to the USB of controller i.e (Raspberry Pi or Laptop or VM)
If there are multiple GPS sensors you plan to attach you can use SerialNumber create a unique protocol string i.e. phid://1 etc

Code Block

language	xml
title	Phidget Handler Thing Facet to Read GPS Sensor
linenumbers	true

<ThingFacet Name="PhidgetSimulatedFacetGPSPhidgetSensorFacet">
  <Integer	<String Name="SimulatedValueGPSOutput" Updateupdate="auto" KnownBy="PhidgetSimActionGPSPhidgetSensorAction" />
    <String Name="DeviceTypeSerialNumber" />
  	<String Name="SerialNumberDeviceType" />
  	<Action Name="PhidgetSimActionGPSPhidgetSensorAction" Documentation="ReturnsConnect integerto values from 1 - 100 in Random orderGPS sensor">
    	<Workflow Limit="1" Live="1" Timeout="-1">
      		<Task Namename="Main" Whilewhile="Truetrue">
        				<Event Namename="Argument" Asas="ActionArgument" />
        				<Invoke Namename="ReadValue" waitFor="Argument" Get
                       Post="phid://[%:Event.Argument.SerialNumber.Value:%]" SerialNumber="[%:Event.Argument.SerialNumber.Value:%]"
						DeviceType="[%:Event.Argument.DeviceType.Value:%]" Simulated="true"/>
        <Output Name="Result" As="ActionResult">      <!-- Optionally parse the string <Value>if desired -->
				<Output name="Result" as="ActionResult">
       <SimulatedValue>					<Value>
						<GPSOutput>[%:[%:@Output:%]Invoke.ReadValue.Message.Value:%]</SimulatedValue>
          GPSOutput>
					</Value>
        				</Output>
      			</Task>
    		</Workflow>
  	</Action>
</ThingFacet>

Controlling Servo Motor AngleDisplay Text on LCD Screen.

Code Block

language	xml
title	Phidget Handler Thing Facet to control Servo Motordisplay text on LCD Screen
linenumbers	true

<ThingFacet Name="PhidgetSimulatedFacetPhidgetTextLCDFacet">
  <Integer	<String Name="SimulatedValueDisplayString" UpdateKnownBy="autoLCDDisplayAction" KnownByDocumentation="PhidgetSimAction"/>This is a <Stringruntime Name=parameter"DeviceType" />
  	<String Name="SerialNumberDeviceType" />
  	<Action Name="PhidgetSimActionLCDDisplayAction"
		Documentation="ReturnsDisplay integerthe valuesstring fromto 1Phidget - 100 in Random orderText LCD">
    		<Workflow Limit="1" Live="1" Timeout="-1">
      			<Task Namename="Main" Whilewhile="Truetrue">
        				<Event Namename="ArgumentActionArgument" Asas="ActionArgument" />
				<Log Message="******Invoking Phidget Text     LCD"/>
				<Invoke Namename="ReadValueWriteToLCD" waitFor="ArgumentActionArgument"
Get="phid://" SerialNumber					Post="[%:Event.Argument.SensorURL.Value:%]" 
					DeviceType="[%:Event.Argument.SerialNumberDeviceType.Value:%]">
				 <Message Type="text" DeviceTypeValue="[%:Event.Argument.DeviceTypeDisplayString.Value:%]" Simulated="true />
				 </Invoke>
				<Log Message="Invoked Phidget Text LCD"/>
				<Output name="Result" as="ActionResult">
					<Value>
						<DisplayString>[%:[%:@Output:%]Invoke.WriteToLCD.Message.Value:%]</DisplayString>
					</Value>
				</Output>
 <Output Name="Result" As="ActionResult">
          <Value>
			</Task>
		</Workflow>
	</Action>
</ThingFacet>
<!-- Combine with Model -->
<ThingModel Name="PhidgetLCDScreenModel" Combines="PhidgetTextLCDFacet">
   <Sid Name="LCDScreenID"/>
</ThingModel>
<!-- Write Text for first time -->
<Query>
  <Save format="version,current">
    <PhidgetLCDScreenModel>
      <SimulatedValue>[%:[%:@Output:%]Invoke.ReadValue.Message.Value:%]</SimulatedValue><SensorName>Rotation</SensorName>
      <DeviceType>PhidgetTextLCD</DeviceType>
      <DisplayString>Hello TQL!</Value>DisplayString>
    </PhidgetLCDScreenModel>
  </Save>
</Output>
      </Task>
    </Workflow>
  </Action>
</ThingFacet>Query>
<!-- Subsequent Writes can happen via Update Query -->
<Query>
 <Find format="version"> 
		<PhidgetLCDScreenModel>
			<LCDScreenID ne=""/>
		</PhidgetLCDScreenModel>
	</Find>
	<SetResponseData> 
		<key>Message.Value.Find.Result.PhidgetLCDScreenModel.DisplayString.Value</key>
		<value>Hello Again!!</value>
	</SetResponseData>
	<Update> 
		<from>Result</from>
		<Include>$Response.Message.Value.Find</Include>
	</Update>
</Query>

Driver Installation Steps

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Code Block

language	text
theme	Eclipse
title	Command to install USB Lib
linenumbers	true

sudo apt-get install libusb-1.0-0-dev

Download Phidget Libraries from this location

Code Block

language	text
title	Download Link
linenumbers	true

http://www.phidgets.com/downloads/libraries/libphidget.tar.gz

Unpack the downloaded libraries using the command

Code Block

language	text
title	Unpack command
linenumbers	true

tar -xzvf libphidget_2.X.X.XXXXXXXX.tar.gz

Then run the following commands to install Phidget libraries

Code Block

language	text
title	Unpack command
linenumbers	true

cd libphidget-2.X.X.XXXXXXXX/
sudo ./configure
sudo make
sudo make install

Refer to TQL CLI Protocol Install section for installation of phidget driver.

Note: - For additional information and troubleshooting visit the following website website (http://www.phidgets.com/docs/OS_-_Linux)

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Key

Phidget Input Parameter List

Phidget Output Format

Driver Installation Steps