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Notice: This page contains information for the legacy Phidget21 Library.

Phidget21 is out of support. Bugfixes may be considered on a case by case basis.

Phidget21 does not support VINT Phidgets, or new USB Phidgets released after 2020. We maintain a selection of legacy devices for sale that are supported in Phidget21.

We recommend that new projects be developed against the Phidget22 Library.


Click on the 2phidget22.jpg button in the menu bar to go to the Phidget22 version of this page.

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OS - iOS: Difference between revisions

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[[Category:OS]]
[[Category:OS]]
[[File:Icon-iOS.png|64x64px|link=OS - Windows]]iOS is a mobile OS used on iOS devices including the iPad, iPhone, and iPod touch.
{{OSLang|[[File:Icon-iOS.png|64x64px|link=OS - iOS]]|iOS is the operating system used on iOS devices such as the iPad, iPhone, and iPod touch.}}
 
__TOC__
__TOC__


Phidgets are designed to run on devices with an iOS version of 3.0 or later. It is strontly recommended that your device have the latest iOS version installed. As iOS devices do not have USB ports, the Phidgets will have to be connected on a computer with USB ports, and the iOS device will be able to interact with the Phidget over the Webservice. If you are looking for a compact and cheaper-than-a-tablet way to host Phidgets over a network, take a look at our [[1072 0 - PhidgetSBC2|Single Board Computer]].
Phidgets are designed to run on devices with an iOS version of 5.1.1 or later. It is strongly recommended that your device have the latest iOS version available to the device installed. As iOS devices do not have USB ports, the Phidgets will have to be connected on a computer with USB ports, and the iOS device will be able to interact with the Phidget over the [[Phidget_WebService|WebService]]. If you are looking for a compact and an inexpensive way to host Phidgets over a network, take a look at our [{{SERVER}}/products.php?product_id=1073 Single Board Computer].


==Getting Started (Libraries and Drivers)==
==Quick Downloads==


If this is your first Phidget, we highly recommend working through the Getting Started guide [[Device List|for your specific Phidget device]].  
If this is your first Phidget, we highly recommend working through the ''Getting Started'' guide for your specific Phidget device, which may be found in its [[:Category:UserGuide|user guide]].


iOS code is developed on an external OS X machine, and so getting your Phidget to work locally on that platform first will help you distinguish any issues from network ones later.
If you are already a pro, and just want the iOS drivers:


If you are already a pro, and just want the drivers:
*[{{SERVER}}/downloads/phidget21/libraries/ios/Phidget-iPhone.zip iOS Libraries]


*[http://www.phidgets.com/downloads/libraries/Phidget-iPhone_2.1.8.20120216.zip iOS Drivers]
==Getting Started with iOS==


===Installing===
===Installing===


The 'installation' of the Phidget iOS libraries is simply linking and distributing the libraries with your code. As the most common platform to do this is through Xcode, we provide brief instructions on how to easily follow along with our already-linked examples later.
iOS code is developed on an OS X machine, and so getting your Phidget to work locally on the OS X machine first will help you distinguish any issues from network ones later. The OS X machine will need the Phidget drivers installed, please see the [[OS - OS X | OS X]] page for more information.  


To install the libraries, follow these steps:
You will also need to [{{SERVER}}/downloads/phidget21/libraries/ios/Phidget-iPhone.zip iOS drivers] to code your program against. 
The "installation" of the Phidget iOS libraries is simply linking and distributing the libraries with your project. As the most common platform to do this is through Xcode, we provide brief instructions on how to easily follow along with our already-linked examples later.


1. Download one of the Phidget installer for your system, depending on whether your system is 32 or 64-bit.
To install the libraries, follow these steps on the development computer:
*[http://www.phidgets.com/downloads/libraries/Phidget-iPhone_2.1.8.20120216.zip iOS Drivers]


1. Download the Phidget [{{SERVER}}/downloads/phidget21/libraries/ios/Phidget-iPhone.zip drivers for iOS].


2. Unzip the file, and you will find three things:
2. Unzip the file, and you will find three things:


# Libraries for the iOS device and iOS simulator
# Libraries for the iOS device and iOS simulator.
# Example code for the PhidgetInterfaceKit and PhidgetManager
# Example Xcode project for the PhidgetInterfaceKit and PhidgetManager.
# Skeleton project - contains the minimal project settings already filled in for Phidgets development.  
# Skeleton Xcode project - contains the minimal project settings already filled in for Phidgets development.  


Feel free to browse around within the folders to get a sense of what will be going on the iOS side.  We describe how to link and use these library files later on the [[Language - iOS#Write Your Own Code | Write your own iOS code]] section of the iOS Cocoa Touch page.  For now, having found them means you can copy and 'install' them to any project directory you want.
Feel free to browse around within the folders to get a sense of what will be going on the iOS side.  We describe how to link and use these library files later on the [[Language - iOS#Write Your Own Code | Write your own iOS code]] section of the iOS Cocoa Touch page.  For now, having found them means you can copy and install them to any project directory you want.


First, though, it will be useful to check to make sure Phidgets work with your iOS system.
First, though, it will be useful to check to make sure Phidgets work with your iOS system.
Line 38: Line 38:
===Checking===
===Checking===


When you run a Phidgets iOS example, you transfer and link the libraries and code all at the same time.  This should 'just work' with our examples, but if problems arise this section gives more detail on pinpointing the source of the problem.  We recommend starting with running the software examples right away - if the software works, you know the hardware works too.
When you run a Phidgets iOS example, you transfer and link the libraries and code all at the same time.  This should <i>just work</i> with our examples, but if problems arise this section gives more detail on pinpointing the source of the problem.  We recommend starting with running the software examples right away - if the software works, you know the hardware works too.


====Software====
====Software====
Line 48: Line 48:
If you are having problems running the examples, you should check the hardware of the host computer.
If you are having problems running the examples, you should check the hardware of the host computer.


When using the [[#Webservice|Webservice]] to control a Phidget, the problem may be with the USB connection on the remote computer.  Make sure both the server-side of (a) the webservice and (b) the USB connection are working by using the instructions on the [[OS - OS X|OS X page]]
When using the [[#WebService|WebService]] to control a Phidget, the problem may be with the USB connection on the remote computer.  Make sure both the server-side of (a) the webservice and (b) the USB connection are working by using the instructions on the [[OS - OS X|OS X page]]


====Troubleshooting====
====Troubleshooting====


If the examples '''do not''' work but USB '''does''' work (i.e. your remote computer or Android device can consistently see the device in the [[#Hardware|hardware]]), take a moment to check the basics:
If the examples '''do not''' work but USB '''does''' work (i.e. your remote computer or iOS device can consistently see the device in the [[#Hardware|hardware]]), take a moment to check the basics:
* No other programs, drivers, or processes are using the the Phidget on the host computer.
* No other programs, drivers, or processes are using the Phidget on the host computer.
* You have copied and linked the Phidget iOS libraries (as described on the [[Language - iOS]] page)
* You have copied and linked the Phidget iOS libraries (as described on the [[Language - iOS]] page)
* The Phidget libraries are the latest version (visit the [[#Getting Started (Libraries and Drivers)| getting started section]] to download them)
* The Phidget libraries are the latest version (visit the [[#Quick Downloads| quick downloads section]] to download them)
* Ensure that the webservice drivers and the iOS libraries are both the latest version
* Ensure that the webservice drivers and the iOS libraries are both the latest version
* Ensure that you have the most up to date iOS version installed for your device.
* Check the [[#Common Problems and Solutions|common problems]] section below, some specific combinations can cause problems
* Check the [[#Common Problems and Solutions|common problems]] section below, some specific combinations can cause problems


If your problem doesn't seem to be fixed by these steps, make sure that the Phidget is seen '''consistently''' by USB in [[#Hardware|hardware]] (if it is erratic, try our [[General Troubleshooting|general troubleshooting guide]]).  If you are still having problems after using the troubleshooting guide, please [[Contact Information|ask us]]!
If your problem doesn't seem to be fixed by these steps, make sure that the Phidget is seen '''consistently''' by USB in [[#Hardware|hardware]] (if it is erratic, try our [[General Troubleshooting|general troubleshooting guide]]).  If you are still having problems after using the troubleshooting guide, please [[Contact Us|ask us]]!


==Programming Languages==
==Programming Languages==


iOS programs are written in [[Language - iOS|Cocoa Touch and Objective C]]using the Phidgets library.
iOS programs are written in [[Language - iOS|Objective C]] using the Cocoa Touch framework. You can read on within this page to learn how to use iOS with the Webservice, or you can jump ahead right now to the [[Language - iOS|iOS]] page and start writing code!
 
==Webservice==
 
The Phidget Webservice allows you to remotely control a Phidget over a network.
 
Drivers for the Phidget Webservice on Windows are already included in the [[#Getting Started (Libraries and Drivers) | Drivers]] above. If you have a [[File:Ph.jpg]] icon in your taskbar, you already have the Webservice drivers installed.
 
You can connect to a Phidget hosted on another computer if you know the IP address of the host computer. Phidgets optionally supports the use of mDNS, which allows Phidgets to be found and opened on the network by a server id instead of an IP address and port. When using a server id, both the client and server will need to be running an implementation of zero configuration networking. The Phidget Webservice takes advantage [http://www.apple.com/support/downloads/bonjourforwindows.html Bonjour] software. It is a tool, developed by Apple to locate devices such as Phidgets, and printers. It allows you to connect to a Phidget over the Webservice while specifying the server id. Alternatively, an IP address and port can be supplied to connect to a Phidget over the Webservice. If you do not have Bonjour installed on your system, you will have to use the second method to connect to a Phidget.
 
This section helps you install, check, and use the Webservice on Windows, but we also have an overview of the [[Phidget Webservice]] in general.
 
===Turning the Webservice On and Off===
 
There are two methods that can be used to turn the Webservice on and off. The first method is through the Phidget Control Panel. In the {{Code|Webservice}} tab, you can start, restart or stop the Webservice. You can also choose to have the Webservice start up automatically upon Windows boot up by selecting {{Code|Automatic}} as the {{Code|Startup Type}}. By leaving the {{Code|Startup Type}} as {{Code|Manual}}, you will have to manually turn the Webservice on everytime you wish to use it.
 
[[File:Windows ControlPanel WebService Setup Stopped.PNG|link=|alt=Windows Control Panel WebService Setup]]
 
The second method of turning the Webservice on and off is through command line. If you used our installer, the Webservice utility is automatically installed in {{Code|C:\Program Files\Phidgets\PhidgetWebservice21.exe}}.
 
You can get command line help with {{Code|PhidgetWebservice21.exe}} using the -h option:
 
<div class="source">
<syntaxhighlight lang=bash>
PhidgetWebservice21 -h
</syntaxhighlight>
 
<syntaxhighlight lang=text>
'phidgetwebservice21' is a Phidget and Dictionary server from Phidgets Inc. See www.phidgets.com for more information.
Usage: phidgetwebservice21 [OPTION]
All parameters are optional. The default parameters are: port=5001, ServerName=(Computer Name) and no password
 
Options:
  -p      Port
  -n      Server Name
  -P      Password
  -v      Debug mode
  -h      Display this help
</syntaxhighlight>
</div>
 
To find the defaults used by {{Code|phidget21webservice}}, the command line is the fastest way to learn the default server name and IP address of your computer:
*For the default server name, type {{Code|hostname}} in the command line.
*For your IP address, type {{Code|ipconfig -all}} in the command line.
**A line in the return text, will say something like {{Code|192.168.2.198}}, which is your IP.
 
Here are some example usage.  The Windows command line is used. Traverse to the Phidget installation directory(By default, it is located in {{Code|C:\Program Files\Phidgets}}).
 
To start the Webservice with default parameters:
<div class="source">
<syntaxhighlight lang=bash>
PhidgetWebservice21.exe
</syntaxhighlight>
</div>
 
To start the Webservice with a server name of {{Code|myServer}}:
<div class="source">
<syntaxhighlight lang=bash>
PhidgetWebservice21.exe -n myServer
</syntaxhighlight>
</div>
 
To stop the Webservice, simply close the command line window or press {{Code|Ctrl}} and {{Code|c}} at the same time in the command line window.
 
===Using the Webservice===
 
To use a Phidget over the Webservice, you'll want to:
* Have two different computers connected to the same network. We will call the computer that has the Phidget directly connected to the USB port the host. The client will be the computer that runs a Phidget application to connect to the Phidget attached to the host. Please note that If you only have a single computer, you can also connect to the Phidget over the Webservice. The computer will simply act as both a host and client.
 
* Start the Webservice on the computer that directly connects to the Phidget
* Run your program on the remote computer that will control the Phidget over the network
 
The easiest way to test these steps on Windows is [http://www.apple.com/support/downloads/bonjourforwindows.html download] and install Bonjour onto both the host and client. Next, we will set up the Webservice and run the Phidget program on the client. Please follow these steps:
 
1. On the host, open up the Phidget Control Panel and traverse to the {{Code|Setup}} tab of the {{Code|WebService}} section.
 
[[File:Windows ControlPanel WebService Setup Stopped.PNG|link=|alt=Windows Control Panel WebService Setup Stopped]]
 
2. Leave all fields the way it is, and click on {{Code|Start}} to run the Webservice.
 
3. You can determine that the Webservice is running by looking at the WebService status at the bottom of the window.
 
[[File:Windows ControlPanel WebService Setup Running.PNG|link=|alt=Windows Control Panel WebService Setup Running]]


4. Ensure that the Phidget is plugged in to the host.
==WebService==


5. On the client's Phidget Control Panel, open up the {{Code|Bonjour}} tab in the {{Code|Webservice}} section. You will see the Phidget that is plugged into the host as one of the entries listed. Double click it to open the example application.
The Phidget WebService allows you to remotely control a Phidget over a network.<br>This section helps you use the WebService on iOS, but we also have an overview of the [[Phidget WebService]] in general.


[[File:Windows ControlPanel WebService Bonjour Running.PNG|link=|alt=Windows Control Panel WebService Bonjour]]
Currently, iOS devices cannot ''host'' the WebService, but they can use data streaming from another computer over the WebService.


6. The example application will open up, and you will be able to interact with the Phidget over the Webservice.
===Setting Up the WebService===


[[File:Windows ControlPanel Example.PNG|link=|alt=Windows Control Panel Example]]
Using an iOS device, your network-controlled Phidget system will probably look something like this:


7. You can confirm that the Webservice was indeed behind this exchange by killing the Webservice process while still allowing the remote program to run. On the host's Phidget Control Panel, traverse to the {{Code|Setup}} tab of the {{Code|Webservice}} section. Hit {{Code|Stop}} to terminate the Webservice.
[[Image:webservice_general_pctoios.png|600px|link=|alt=]]


[[File:Windows ControlPanel WebService Setup Running.PNG|link=|alt=Windows Control Panel WebService Setup Running]]
To begin,


8. Take a look at the example application on the client. Since the application can no longer connect to the Webservice, the attached state of the Phidget is false.
1. Start the WebService on the host computer
* How to do this [[OS - Windows#WebService|on Windows]]
* How to do this [[OS - OS X#WebService|on Mac OS]]
* How to do this [[OS - Linux#WebService|on Linux]]
* How to do this [[OS - Phidget SBC#WebService|on the Phidget Single Board Computer]]


[[File:Windows ControlPanel WebService Example Disconnected.PNG|link=|alt=Windows Control Panel WebService Example while Webservice Stopped]]
2. Download and unzip the [{{SERVER}}/downloads/phidget21/libraries/ios/Phidget-iPhone.zip iOS Examples] anywhere on the development computer.


===Debugging the Webservice===
3. Open up the {{Code|HelloWorld.xcodeproj}} into Xcode. Select either an iOS device or iOS simulator as the destination. For more information, please see the [[Language - iOS#Use OurExamples|Use Our Examples]] section of the iOS language page.


In addition to enabling [[General Phidget Programming#Logging|logging]] in your Phidget code, you can get additional debugging information from the Webservice itself.  This additional debugging can be enabled from the {{Code|Enable verbose output}} checkbox in the Phidget Control Panel.
4. In Xcode, hit the {{Code|Run}} button to transfer the application to the device or simulator as well as run it.


[[File:Windows ControlPanel WebService Setup Running.PNG|link=|alt=Windows Control Panel WebService Setup]]
===Using the WebService===


The debugging information is shown in the {{Code|Output}} tab.
After performing the steps above, you will be using the WebService already.  Plugging in the Phidget to the host computer will give you a screen like this:


[[File:Windows ControlPanel WebService Output Running.PNG|link=|alt=Windows Control Panel Webservice Output Running]]
[[File:iOS Webservice Example HelloWorld Output.png|link=|alt=HelloWorld Output]]


If you are using the command line approach to start the Webservice, debug information is enabled by specifying the {{Code|-v}} option:
The above screenshot shows that a number of Phidgets are attached to the USB ports of computer connected to the network. Go ahead and detach the Phidgets from the USB port of the host computer, and see what happens.


<div class="source">
===Debugging the WebService===
<syntaxhighlight lang=bash>
PhidgetWebservice21.exe -v -n "myServer"
</syntaxhighlight>
</div>


The debugging information is shown command line output.
Since an iOS device can only be a user and not a host of the WebService, you should use debugging server side.  Refer to the webservice sections for each operating system:
* [[OS - Windows#WebService|Windows]]
* [[OS - OS X#WebService|Mac OS]]
* [[OS - Linux#WebService|Linux]]
* [[OS - Phidget SBC#WebService|Phidget Single Board Computer]]
In addition, if you are having WebService problems, you will probably find the webservice section of our [[General Troubleshooting#WebService Troubleshooting|General Troubleshooting Guide]] helpful as well.


==Advanced Uses==
==Advanced Uses==


===Manual File Installation===
===Description of Installer files===
 
The Phidget installer installs the most commonly used files onto your system. However, there may be special cases where you want to install the Phidget libraries without the installers. This section will describe the purpose of each individual file and cover how to manually install and distribute the libraries with your code.
 
====Description of Library files====
 
* <b>{{Code|phidget21.dll}}</b> contains the actual Phidget library, which is used at run-time.  It is also placed in {{Code|C:\Windows\System32}}.
* <b>{{Code|PhidgetWebService21.exe}}</b> is used to control Phidgets remotely across a network using the [[#PhidgetWebservice | PhidgetWebservce]].
* <b>{{Code|PhidgetWindowsService21.exe}}</b> is a Windows service that controls {{Code|PhidgetWebService21.exe}}.
* <b>{{Code|phidget21.lib}}</b> is used by your compiler to link to the dll.  Your compiler has to know where this file is, by default our installer puts {{Code|phidget21.lib}} into {{Code|C:\Program Files\Phidgets}}, so you can either point your compiler to that location, or copy and link to it in a directory for your project workspace. {{Code|phidget21.lib}} is written to be compatible with most compilers - but your specific compiler may need a different format. Check our documentation for your specific compiler for details. Please note that we provide versions of the {{Code|phidget21.lib}} that are specifically optimized for 32-bit or 64-bit systems. If you are using a 64 bit versions of Windows, the {{Code|phidget21.lib}} is placed in {{Code|C:\Program Files\Phidgets}}; The 32 bit version of {{Code|phidget21.lib}} is placed in {{Code|C:\Program Files\Phidgets\x86}}.
* <b>{{Code|phidget21.h}}</b> lists all the Phidget API function calls available to your code.  Your compiler also has to know where this file is.  By default, our installer puts {{Code|phidget21.h}} into {{Code|C:\Program Files\Phidgets}} so you can either point your compiler to that location, or copy and link to it in a directory for your project workspace.
* <b>{{Code|phidget21.jar}}</b> is an archive containing the Phidgets library, used by the [[Language -  Java | Java]] programming language.
* <b>{{Code|Phidget21.NET.dll}}</b> is the Phidgets library for .NET framework 2.0 or greater. Any .NET language can be used, including [[Language - C Sharp | C#]]  , and [[Language - Visual Basic .NET | Visual Basic .NET]].
* <b>{{Code|Phidget21.NET1.1.dll}}</b> is the Phidgets library for .NET framework 1.1. Any .NET language can be used, including [[Language - C Sharp | C#]]  , and [[Language - Visual Basic .NET | Visual Basic .NET]].
* <b>{{Code|Phidget21.NET.XML}}</b> provides the IntelliSense in-line documentation for the .NET library in Visual Studio.
* <b>{{Code|Phidget21COM.dll}}</b> is the Component Object Model(COM) library and provides your project access to the Phidget ActiveX objects. This libraries is used by the [[Language - Adobe Director|AdobeDirector]], [[Language - AutoIt|AutoIT]], [[Language - Delphi|Delphi]], [[Language -  Visual Basic 6.0|Visual Basic 6.0]], [[Language - Visual Basic for Applications|Visual Basic for Applications]], [[Language - Visual Basic Script|Visual Basic Script]].
* <b>{{Code|Phidget21Manager.exe}}</b> is a tool to quickly determine whether your system is able to control Phidgets, and also act as a debugging tool.
* <b>{{Code|Examples}} folder</b> contain example applications that allows you to quickly see if your Phidget is properly configured.
* <b>{{Code|x86 folder}} folder</b> contain the 32 bit versions of {{Code|phidget21.dll}}, {{Code|phidget21.lib}}, {{Code|Phidget21COM.dll}}. These folder will only appear on 64 bit installations and is useful if you want to code against the 32 bit libraries.
 
====Special Cases of Library Install====
 
Regardless of what language you will be using to program Phidgets, you will need the {{Code|phidget21.dll}} placed in the {{Code|C:\WINDOWS\system32}} directory. Additional files are needed for the language that you choose. Please refer to the documentation provided by your [[Device List|language]] to determine what files are needed and the steps needed to install them onto your system.
 
You can find the {{Code|phidget21.dll}} in the link below:
 
*[http://www.phidgets.com/downloads/libraries/Phidget21-windevel_2.1.8.20110615.zip Phidget21 Libraries] (32-Bit and 64-Bit development files without an installer)
 
PhidgetWebService21.exe is also provided in the link above.
 
===Windows in a Virtual Machine===
 
Phidgets can also be used inside a virtual machine. Instructions for VMWare and VirtualBox are provided. Virtual PC is not supported as USB Phidgets requires a virtual platform that supports HID USB Devices. Since Virtual PC does not support HID USB devices, Phidgets may not be used.
 
As always, please ensure that you have the latest Phidget [[#Getting Started (Libraries and Drivers) | drivers]] installed on the virtual machine and that you are using the latest version of your virtual software.
 
<b>VMWare:</b>
 
To enable USB Phidgets, select Virtual Machine -> Removable Devices -> and select the Phidget Input Device -> Connect.
 
<b>VirtualBox</b>


To enable USB Phidgets, VirtualBox Guest Additions(Devices -> Install Guest Additions) may need to be installed. Afterwards, click on Devices -> USB Devices and select the Phidget device to enable. The state should go from Busy to Captured. VirtualBox may bring up a new hardware wizard in the host operating system, which has to be installed. Please note that Phidgets with USB hubs(i.e, [[Product - 1019 1 - PhidgetInterfaceKit 8/8/8 w/6 Port Hub|1019]]), are undetectable; Fortunately, Phidgets that are attached to such Phidgets are detectable.
Here is the list of files and their description for each file that is distributed through the iOS drivers.
* <b>{{Code|iphoneos/libPhidget21.a}}</b> contains the actual Phidget library, which is used at run-time.  This library is used when you are testing the example on the actual iOS device.
* <b>{{Code|iphonesimulator/libPhidget21.a}}</b> contains the actual Phidget library, which is used at run-time.  This library is used when you are testing the example an iOS simulator.
* <b>{{Code|phidget21.h}}</b> lists all the Phidget API function calls available to your code. Your compiler also has to know where this file is.
* <b>{{Code|SkeletonProject}}</b> is a Xcode project containing the bare minimum project settings already filled in to code with the Phidget library.


==Common Problems and Solutions==
==Common Problems and Solutions==


===Issue: A corrupt installation fails on uninstall or repair===
None at this time.
Affected Operating Systems: '''Windows'''
 
Solution: If the normal uninstall fails, or for whatever reason, you can choose to remove the Phidgets framework manually.
Please perform the following:
# Shut down any programs using the Phidget libraries, including the webservice and the Phidget Control Panel.
# Delete C:\Program Files\Phidgets\
# Remove the Phidgets key from the Registry [-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services PhidgetWebservice21].
 
In most cases this is enough to get the installer working again. If you need to remove all traces of
the Phidgets libraries manually, perform the following additional steps:
 
# Unregister the COM library: regsvr32 /u “C:\Program Files\Phidgets\Phidget21COM.dll”
# Remove Phidget21.NET and Policy.2.1.Phidget21.NET from C:\Windows\Assembly\
# Delete ‘C:\Documents and Settings\All Users\Application Data\Phidgets’ (WindowsXP) or ‘C:\Users\All Users\Phidgets’ (Vista).
# Delete C:\Windows\system32\phidget21.dll
# Delete Phidgets from the start menu
# Search for and remove keys mentioning Phidgets from the registry in the following locations:
:* [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\]
:* [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\]
:* [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\AssemblyFolders\Phidgets Inc]
:* [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\Phidget21Manager]
:* [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Assemblies\Global\]
 
:9. Reboot
 
'''NOTE:''' You can go through the registry and purge any other keys mentioning Phidgets if you still
have problems, but at this point you should be able to reinstall under most cases. There will also be
keys relating to the installer, the .NET library and the COM library, but they should not interfere with
anything.
 
===Issue: Event data is sporadic/slow/clumped over the webservice===
Affected Operating Systems: '''Windows'''
 
Windows implements 200ms delayed ACKs for network traffic. When traffic is one-way only - as it is with event data, the data will all arrive in clumps every 200ms because of delayed ACKs.
 
This can be a great drawback for application which rely on low latency event data over the network. (source: http://support.microsoft.com/kb/214397)
 
This delayed ACK behavior can be disabled in windows to decrease event latency as documented here: http://support.microsoft.com/kb/328890
 
In the future, the Phidgets library may implement this differently, but so far we have been unable to match the performance achieved by disabling delayed ACK.
{{CreativeCommons}}

Latest revision as of 18:37, 7 June 2017

Icon-iOS.png iOS is the operating system used on iOS devices such as the iPad, iPhone, and iPod touch.

Phidgets are designed to run on devices with an iOS version of 5.1.1 or later. It is strongly recommended that your device have the latest iOS version available to the device installed. As iOS devices do not have USB ports, the Phidgets will have to be connected on a computer with USB ports, and the iOS device will be able to interact with the Phidget over the WebService. If you are looking for a compact and an inexpensive way to host Phidgets over a network, take a look at our Single Board Computer.

Quick Downloads

If this is your first Phidget, we highly recommend working through the Getting Started guide for your specific Phidget device, which may be found in its user guide.

If you are already a pro, and just want the iOS drivers:

Getting Started with iOS

Installing

iOS code is developed on an OS X machine, and so getting your Phidget to work locally on the OS X machine first will help you distinguish any issues from network ones later. The OS X machine will need the Phidget drivers installed, please see the OS X page for more information.

You will also need to iOS drivers to code your program against.  The "installation" of the Phidget iOS libraries is simply linking and distributing the libraries with your project. As the most common platform to do this is through Xcode, we provide brief instructions on how to easily follow along with our already-linked examples later.

To install the libraries, follow these steps on the development computer:

1. Download the Phidget drivers for iOS.

2. Unzip the file, and you will find three things:

  1. Libraries for the iOS device and iOS simulator.
  2. Example Xcode project for the PhidgetInterfaceKit and PhidgetManager.
  3. Skeleton Xcode project - contains the minimal project settings already filled in for Phidgets development.

Feel free to browse around within the folders to get a sense of what will be going on the iOS side. We describe how to link and use these library files later on the Write your own iOS code section of the iOS Cocoa Touch page. For now, having found them means you can copy and install them to any project directory you want.

First, though, it will be useful to check to make sure Phidgets work with your iOS system.

Checking

When you run a Phidgets iOS example, you transfer and link the libraries and code all at the same time. This should just work with our examples, but if problems arise this section gives more detail on pinpointing the source of the problem. We recommend starting with running the software examples right away - if the software works, you know the hardware works too.

Software

The easiest way to see whether your libraries are set up correctly within our examples or your own project is just to download them to the iOS device and run them. Detailed instructions for this (including choosing the right HelloWorld project to run) are on the Language - iOS page. That page will be your next step - but if the examples do not run using the instructions, return here to debug your hardware.

Hardware

If you are having problems running the examples, you should check the hardware of the host computer.

When using the WebService to control a Phidget, the problem may be with the USB connection on the remote computer. Make sure both the server-side of (a) the webservice and (b) the USB connection are working by using the instructions on the OS X page

Troubleshooting

If the examples do not work but USB does work (i.e. your remote computer or iOS device can consistently see the device in the hardware), take a moment to check the basics:

  • No other programs, drivers, or processes are using the Phidget on the host computer.
  • You have copied and linked the Phidget iOS libraries (as described on the Language - iOS page)
  • The Phidget libraries are the latest version (visit the quick downloads section to download them)
  • Ensure that the webservice drivers and the iOS libraries are both the latest version
  • Ensure that you have the most up to date iOS version installed for your device.
  • Check the common problems section below, some specific combinations can cause problems

If your problem doesn't seem to be fixed by these steps, make sure that the Phidget is seen consistently by USB in hardware (if it is erratic, try our general troubleshooting guide). If you are still having problems after using the troubleshooting guide, please ask us!

Programming Languages

iOS programs are written in Objective C using the Cocoa Touch framework. You can read on within this page to learn how to use iOS with the Webservice, or you can jump ahead right now to the iOS page and start writing code!

WebService

The Phidget WebService allows you to remotely control a Phidget over a network.
This section helps you use the WebService on iOS, but we also have an overview of the Phidget WebService in general.

Currently, iOS devices cannot host the WebService, but they can use data streaming from another computer over the WebService.

Setting Up the WebService

Using an iOS device, your network-controlled Phidget system will probably look something like this:

To begin,

1. Start the WebService on the host computer

2. Download and unzip the iOS Examples anywhere on the development computer.

3. Open up the HelloWorld.xcodeproj into Xcode. Select either an iOS device or iOS simulator as the destination. For more information, please see the Use Our Examples section of the iOS language page.

4. In Xcode, hit the Run button to transfer the application to the device or simulator as well as run it.

Using the WebService

After performing the steps above, you will be using the WebService already. Plugging in the Phidget to the host computer will give you a screen like this:

HelloWorld Output

The above screenshot shows that a number of Phidgets are attached to the USB ports of computer connected to the network. Go ahead and detach the Phidgets from the USB port of the host computer, and see what happens.

Debugging the WebService

Since an iOS device can only be a user and not a host of the WebService, you should use debugging server side. Refer to the webservice sections for each operating system:

In addition, if you are having WebService problems, you will probably find the webservice section of our General Troubleshooting Guide helpful as well.

Advanced Uses

Description of Installer files

Here is the list of files and their description for each file that is distributed through the iOS drivers.

  • iphoneos/libPhidget21.a contains the actual Phidget library, which is used at run-time. This library is used when you are testing the example on the actual iOS device.
  • iphonesimulator/libPhidget21.a contains the actual Phidget library, which is used at run-time. This library is used when you are testing the example an iOS simulator.
  • phidget21.h lists all the Phidget API function calls available to your code. Your compiler also has to know where this file is.
  • SkeletonProject is a Xcode project containing the bare minimum project settings already filled in to code with the Phidget library.

Common Problems and Solutions

None at this time.

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