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[[File:icon-MaxMSP.png|64x64px]] Max/MSP, developed by [http://cycling74.com Cycling74] is a visual programming language for creating music and media applications.
<metadesc>Communicate over USB with sensors, controllers and relays with Phidgets! Our Max/MSP library supports Windows and MacOS.</metadesc>
[[Category:Language]]
__NOTOC__
We provide support for Max/MSP in '''macOS''' and '''Windows'''. We also provide instructions on how to get your project started. Select your operating system below, and follow the instructions to get your project running with Phidgets.


==Support==
Once you have set up your development environment to run with Phidgets, we recommend you follow our guide on [[Phidget Programming Basics]]. The guide will showcase the fundamentals of programming with Phidgets.
Max/MSP has a complete API and sample code for all Phidgets devices.


For a complete list of our supported languages and their support status, [[Levels of Support|click here]].
==Setup Guide==


* Our honest opinion on how well this language is suited to controlling Phidgets. If it is a poor choice, suggest and link similar (better) languages.
<div class="phd-deck-sequence">
* In this section, list any restrictions or limitations that this particular language may impose. For example, incompatibility with certain operating systems.
{{PT3_MAX_CHOOSE}}{{PT3_MAX_WIN}}{{PT3_MAX_MAC}}
</div>


==Development Environments and Compilers==


Describe each major compiler and notable differences or important information. (eg. framework versions) If there are known issues/workarounds mention them and link to the corresponding issue at the bottom of the page.  
== Quick Downloads ==
If you already know what you're doing and just need the files, you can find them all below.


==Quick Downloads==
=== Documentation ===
Before you can run your program, you need to set up the proper environment and get the necessary files off the Phidgets website.
Visit the drivers section at www.phidgets.com and get the latest:
* [http://www.phidgets.com/drivers.php Phidget Framework]
You will need the Phidget Framework to use and to program with Phidgets. We also recommend that you download the following reference materials:
* API Manual (Link to API download)
* API Reference (Link to online API reference (if applicable))
* Max/MSP Sample Code:
** [http://www.phidgets.com/downloads/examples/WinMaxMSP_2.1.8.20110615.zip Windows]
** [http://www.phidgets.com/downloads/examples/MaxMSP_2.1.8.20110630.zip Mac OSX]
* You can find a high level discussion about programming with Phidgets in general on the [[General API]] page.
* The [[Device Functionality]] page explains the general operational information for your device.


You may want to have these pages open while working through these instructions.
*{{Phidget22API}} (Select Max/MSP from drop-down menu)


==Getting Started==
=== Phidgets Max Libraries ===


The Phidget libraries were written to support Max/MSP version 4.5 and greater.  
* [https://cdn.phidgets.com/downloads/phidget22/libraries/windows/Phidget22MaxMSP.zip Windows Max Libraries for Phidgets]
This tutorial assumes the use of Max 5 but other versions can be set up and used in the same way.
* [https://cdn.phidgets.com/downloads/phidget22/libraries/macos/Phidget22MaxMSP.zip MacOS Max Libraries for Phidgets]
To install the Phidgets to the Max environment, just add the Phidget Max/MSP examples folder to the Max search path.  
This can be done in Options | File Preferences, by adding the Phidget Max/MSP examples directory to the list.  
The project is now ready to use Phidgets and you can begin by creating a new Patcher (File | New Patcher).


===Coding For Your Phidget===
=== Max Example Code ===


Phidgets can be placed inside the patcher using Max objects, and functions can be called on them using appropriately connected messages.
*{{SampleCode|MaxMSP|Max/MSP Example}}
The Max/MSP libraries may not implement the full Phidget API - some function calls and Phidget classes may not be supported.
The help files included with the Phidget externals show all the supported function calls for their type of Phidget.
Data is accessed either by polling, or at a fixed rate via internal timers.
The Phidget webservice is supported.
This tutorial uses a PhidgetInterfaceKit and a new instance will be created.
It can be done by placing a new “object” object, and naming it PhidgetInterfaceKit.


[[Image:MaxMSP1.jpg]]
===Phidgets Core Libraries===


===Connecting to the Phidget===
{{AllQuickDownloads}}
 
One important thing to remember is that when working with Phidgets, a local connection will reserve the device until closed.
This prevents any other instances from retrieving data from the Phidget, including other programs.
The one connection per device limit does not apply when using the Phidget Webservice. 
Be aware that every Phidget object in Max will automatically try to connect to and reserve the Phidget for itself.
It will also continuously try to connect to a Phidget, even trying to reconnect if it gets disconnected.
When the instance is created, normally it will make a connection to the first device of its type it can find.
The Phidget object can also be declared with a serial number to open a specific Phidget instead:
 
[[Image:MaxMSP2.jpg]]
 
We can also open remote Phidgets over the Phidget Webservice, for example:
 
Open a remote interface kit using ServerID:
<font size="3">
PhidgetInterfaceKit remote “Some remote serverID”
</font>
Open a remote interface kit using IP address and port:
<font size="3">
PhidgetInterfaceKit remoteip 192.168.2.5 5001
</font>
Open a remote interface kit with serial number 35569 on serverID “Patrick’s PC”, with
password “pass”:
<font size="3">
PhidgetInterfaceKit 35569 remote “Patrick’s PC” pass
</font>
Open a remote interface kit with serial number 35569, on any remote server
<font size="3">
PhidgetInterfaceKit 35569 remote
</font>
Open the InterfaceKit on a PhidgetSBC:
<font size="3">
PhidgetInterfaceKit remote phidgetsbc
</font>
===Reading and Setting Data===
 
Getting or setting values directly on the Phidget can be done through messages linked to the inlet.
The object’s inlet can be wired to send commands to the device, and the outlet used to retrieve the results.
Setting values on the Phidget is achieved by using the set messages, and some properties can be read with get messages.
 
[[Image:MaxMSP3.jpg]]
 
There are two main approaches for retrieving data when working with Phidgets.
One is to use the read message, and the other is to setSampleRate and use the start and stop message.
Read will read the data off the Phidget once, while using start will trigger data to be sent in periodic intervals.
If the sample rate is set to -1, then data output is only triggered on a change.
 
[[Image:MaxMSP4.jpg]]
 
Phidget specific data is always given a prefix in Max to allow for their routing.
For instance, the digital input states are given the prefix “di” and the analog inputs similarly use “ai”.
The specific prefixes used for each Phidget is listed in their respective help file.
Data common to all Phidgets, such as the serial number, is not prefixed.
The following picture would be an example of how to route and split some of the data for the PhidgetInterfaceKit.
 
[[Image:MaxMSP5.jpg]]
 
===Working with multiple Phidgets===
 
Multiple Phidgets of the same type can easily be used inside a single program, it only requires another Phidget object placed.
If two of the same type of Phidget object are placed, the serial number argument should always be specified to ensure that the correct Phidget gets associated with the correct object.
 
===Other Phidgets===
 
The design given in this document can also be followed for almost all Phidgets.
For example, if you were using a PhidgetRFID instead of an Interfacekit, you would place a PhidgetRFID object instead of a PhidgetInterfaceKit.
The messages and data available would change but could be used in a similar manner.
 
==Building your Project==
Describe the different ways a project could be built using this language.
 
==Common Problems and Solutions/Workarounds==
Here you can put various frequent problems and our recommended solutions.

Latest revision as of 23:03, 12 December 2024


We provide support for Max/MSP in macOS and Windows. We also provide instructions on how to get your project started. Select your operating system below, and follow the instructions to get your project running with Phidgets.

Once you have set up your development environment to run with Phidgets, we recommend you follow our guide on Phidget Programming Basics. The guide will showcase the fundamentals of programming with Phidgets.

Setup Guide

Max - Select Development Environment

Select your Development Environment:

Windows

macOS

Language - Max

Windows with Max

Welcome to using Phidgets with Max! By using Max, you will have access to the complete Phidget22 API, including events.

Phidget22 supports Max versions 6 and up.

Requirements

First, make sure you have the following installed:

Phidgets Drivers for Windows

Max

Use Our Examples

Next, download and unpack the Phidgets Max library:

Phidget Max library

Use Our Examples

After unpacking the download, navigate to the externals folder. Copy the following folder to your clipboard:

  • For 32-bit Max, copy the x86 folder
  • For 64-bit Max, copy the x64 folder

Use Our Examples

The folder you copied needs to be placed in a specific location for Max to reference it. Open Max and navigate to Options -> File Preferences.

Use Our Examples

The folder that you copied earlier needs to be placed in any of the locations listed in File Preferences. Navigate to one of the locations and paste the folder:

Use Our Examples

The Phidget Max library is now being referenced. Next, navigate to the examples folder located within the Phidget22MaxMSP folder you previously unpacked:

Use Our Examples

From here, select an example that will work with your Phidget and open it in Max. You can run the example by simply pressing the start button:

The example is now running. Play around with the device and experiment with some of the functionality. When you are ready, the next step is configuring your project and writing your own code!

Write Code

You should now have working examples and a project that is configured. This teaching section will help you understand how the examples were written so you can start writing your own code.

Remember: your main reference for writing Max code will be:

● The Phidget22 API Manual

● The Max examples

Write Code

First, let's explain how to operate the examples. We will take a look at the PhidgetVoltageInput example:

For this particular example, the Max object is called PhidgetVoltageInput. Objects/message boxes are connected to the inputs and outputs of this object. Input objects will either cause a property of the device to change or request for a property to be retrieved. Output objects return the retrieved information.

All supported functions for Max can be found in the Phidget22 API.

Write Code

Try it for yourself! Click on the getDeviceSerialNumber message box to request the Phidget to retrieve the serial number of the device. You should see the a message in the Max window denoting the serial number of your device. All devices support the getDeviceSerialNumber message, making it an easy way to determine if the Phidget libraries are correctly set up, and whether the Max application is connected to your device.

If your example contains a get[DataType] message box (e.g. getVoltage), click on it to cause the associated data to be output with a relevant prefix. [DataType] can be data member the object has. A list of available messages and their associated outputs is outlined in the Phidget22 API for your device.

Write Code

If your example contains the start message box, you can continuously poll for events. Just press the start message box to start sampling. When an event occurs on a Phidget (i.e. when a sensor detects a change in the measured data), associated data will be output with related prefixes. Press the stop message box to stop sampling.

For the PhidgetDigitalOutput example, there are setDutyCycle and setState message boxes. Changing the numbers will cause the digital output to change. Your example may contain device specific message boxes to click on. Click them to see what they do!

Write Code

Your best resource to program in Max will be our examples. If you aren't familiar with concepts in Phidget programming, you may find our Phidget Programming Basics page helpful. It provides a very generic overview of what traditional languages follow when using Phidgets. For Max users, conceptual details about particular actions (e.g. opening a Phidget) are explained there.

Keep in mind when reading these general resources that the Max libraries may not implement the full Phidgets API - some function calls and Phidget classes may not be supported.

In general, Phidget objects can be placed inside the patcher, and functions can be called on them using appropriately connected messages. We'll go over a basic setup next.

Write Code

Step One: Initialize and Open

Initializing and opening the device is be done by placing a new object. Other objects handle different Phidgets - a Spatial, a Light Sensor, a Motor Controller, etc. Only the name of the object changes. You can find the name for the object in the device's .maxhelp file (e.g. VoltageInput.maxhelp). If you are unsure what the software object for your device is, go to the API tab on its product page on our website.

In the case of a Voltage Input, we name it PhidgetVoltageInput:

Important: a local connection will reserve the device until closed. This prevents any other instances from retrieving data from the Phidget, including other programs. Every Phidget object in Max will automatically try to connect to and reserve a Phidget for itself. As long as a Max Phidget object is running, it will continuously try to connect to a Phidget, even trying to reconnect if it gets disconnected.

Write Code

Specifying a Phidget

When the instance is created as with the Voltage Input above, normally it will make a connection to the first device of its type it can find. The Phidget object can also be declared with a number of specifiers to open a specific Phidget instead.

Specifiers can be added to the object in the format: PhidgetExternal {Specifiers}. These will be written in the form: specifier=value

The full list of specifiers that can be used to identify a Phidget in Max are as follows:

  • serialnumber - The serial number of the device
  • channel - The channel of the device to open
  • hubport - The hub port the device is plugged into (where applicable)
  • ishubport - Specifies whether this channel should be opened on a hub port directly, or on a VINT device attached to a hub port.
  • remote - Forces connection to a remote device over a network, ignoring devices on the local machine
  • local - Forces connection to a device plugged into the local machine, ignoring network devices

Write Code

Specifying a Phidget

For instance, to open a VoltageInput with serial number 349428, you would use:

Some other examples:

Open a Digital Input:

PhidgetDigitalInput

Open channel 1 of a Digital Input Phidget connected to port 2 of a hub with serial number 35569

PhidgetDigitalInput serialnumber=35569 channel=1 hubport=2

Open open hub port 2 as a DigitalInput for a hub with serial number 35569

PhidgetDigitalInput serialnumber=35569 hubport=2 ishubport=1

Write Code

Using a Phidget Over a Network

To use the Network Server, first the Phidget needs to be plugged in to a computer that has the Network Server turned on within your local network. (For information on how to do this, see the Phidget Network Server page in the section on how to use the Network Server for your operating system).

Next, in your patch you need a PhidgetNet object. To automatically find local networks, send it a message saying enableServerDiscovery.

Then, to connect a Phidget over the network, change the object text to specify it is to connect to a Phidget on a remote server, as per the following example.

Write Code

Step Two: Wait for Attachment (plugging in) of the Phidget

Although this is a required step in many of our other languages (and therefore you may be expecting this if coming from another Phidget language), in Max you do not have to add a specific waitForAttachment block.

Keep in mind, however, that if your Phidget is not responding within your Max program, it may simply not be plugged in! Send a getAttached message to a Phidget object at any time to see if it's attached.

Write Code

Step Three: Do Things with the Phidget

Phidget data is accessed either by one-time polling or at a fixed rate via on-board timers for some devices.

Getting or setting values directly via polling on the Phidget is done through messages linked to the inlet. The object’s inlet can be wired to send commands to the device, and the outlet used to retrieve the results. You can set values on the Phidget by using the set messages, and some properties can be read with get messages:

To sample at a fixed rate, use the start and stop messages to start and stop the data flow, respectively.

Write Code

Step Three: Do Things with the Phidget

Outlet data is always given a prefix to allow for routing. For instance, the digital input state state change event data is given the prefix stateChange, and the voltage input voltage change event similarly use voltageChange. The specific prefixes for each set of outlet data is listed on the API page for that class.

The rightmost outlet on the Phidget object outputs error event data. This will send information on error events such as saturation events. To see which error events may apply to your device, check its API page.

Write Code

Step Four: Close and Delete

Although this is a required step in many of our other languages (and therefore you may be expecting this if coming from another Phidget language), in Max you do not have to add a specific close and delete block.

Special Case: Multiple Phidgets

Multiple Phidgets of the same type can easily be used inside a single program, it only requires another Phidget object placed. If two of the same type of Phidget object are placed, the serial number and channel arguments should always be specified (as well as hub port, if applicable) to ensure that the correct Phidget gets associated with the correct object.

What's Next?

Now that you've set up Phidgets in your programming environment, you should read our guide on Phidget Programming Basics to learn the fundamentals of programming with Phidgets.

«
»

Language - Max

MacOS with Max

Welcome to using Phidgets with Max! By using Max, you will have access to the complete Phidget22 API, including events.

Phidget22 supports Max versions 6 and up.

Requirements

First, make sure you have the following installed:

Phidgets Drivers for macOS

Max

Use Our Examples

Next, download and unpack the Phidgets Max library:

Phidget Max library

Use Our Examples

After unpacking the download, navigate to the externals folder and copy it to your clipboard:

Use Our Examples

The folder you copied needs to be placed in a specific location for Max to reference it. Open Max and navigate to Options -> File Preferences.

You will see something similar to this:

Use Our Examples

The folder that you copied earlier needs to be placed in any of the locations listed in File Preferences. Navigate to one of the locations and paste the folder:

Use Our Examples

The Phidget Max library is now being referenced. Next, navigate to the examples folder located within the Phidget22MaxMSP folder you previously unpacked:

Use Our Examples

From here, select an example that will work with your Phidget and open it in Max. You can run the example by simply pressing the start button:

The example is now running. Play around with the device and experiment with some of the functionality. When you are ready, the next step is configuring your project and writing your own code!

Write Code

You should now have working examples and a project that is configured. This teaching section will help you understand how the examples were written so you can start writing your own code.

Remember: your main reference for writing Max code will be:

● The Phidget22 API Manual

● The Max examples

Write Code

First, let's explain how to operate the examples. We will take a look at the PhidgetVoltageInput example:

For this particular example, the Max object is called PhidgetVoltageInput. Objects/message boxes are connected to the inputs and outputs of this object. Input objects will either cause a property of the device to change or request for a property to be retrieved. Output objects return the retrieved information.

All supported functions for Max can be found in the Phidget22 API.

Write Code

Try it for yourself! Click on the getDeviceSerialNumber message box to request the Phidget to retrieve the serial number of the device. You should see the a message in the Max window denoting the serial number of your device. All devices support the getDeviceSerialNumber message, making it an easy way to determine if the Phidget libraries are correctly set up, and whether the Max application is connected to your device.

If your example contains a get[DataType] message box (e.g. getVoltage), click on it to cause the associated data to be output with a relevant prefix. [DataType] can be data member the object has. A list of available messages and their associated outputs is outlined in the Phidget22 API for your device.

Write Code

If your example contains the start message box, you can continuously poll for events. Just press the start message box to start sampling. When an event occurs on a Phidget (i.e. when a sensor detects a change in the measured data), associated data will be output with related prefixes. Press the stop message box to stop sampling.

For the PhidgetDigitalOutput example, there are setDutyCycle and setState message boxes. Changing the numbers will cause the digital output to change. Your example may contain device specific message boxes to click on. Click them to see what they do!

Write Code

Your best resource to program in Max will be our examples. If you aren't familiar with concepts in Phidget programming, you may find our Phidget Programming Basics page helpful. It provides a very generic overview of what traditional languages follow when using Phidgets. For Max users, conceptual details about particular actions (e.g. opening a Phidget) are explained there.

Keep in mind when reading these general resources that the Max libraries may not implement the full Phidgets API - some function calls and Phidget classes may not be supported.

In general, Phidget objects can be placed inside the patcher, and functions can be called on them using appropriately connected messages. We'll go over a basic setup next.

Write Code

Step One: Initialize and Open

Initializing and opening the device is be done by placing a new object. Other objects handle different Phidgets - a Spatial, a Light Sensor, a Motor Controller, etc. Only the name of the object changes. You can find the name for the object in the device's .maxhelp file (e.g. VoltageInput.maxhelp). If you are unsure what the software object for your device is, go to the API tab on its product page on our website.

In the case of a Voltage Input, we name it PhidgetVoltageInput:

Important: a local connection will reserve the device until closed. This prevents any other instances from retrieving data from the Phidget, including other programs. Every Phidget object in Max will automatically try to connect to and reserve a Phidget for itself. As long as a Max Phidget object is running, it will continuously try to connect to a Phidget, even trying to reconnect if it gets disconnected.

Write Code

Specifying a Phidget

When the instance is created as with the Voltage Input above, normally it will make a connection to the first device of its type it can find. The Phidget object can also be declared with a number of specifiers to open a specific Phidget instead.

Specifiers can be added to the object in the format: PhidgetExternal {Specifiers}. These will be written in the form: specifier=value

The full list of specifiers that can be used to identify a Phidget in Max are as follows:

  • serialnumber - The serial number of the device
  • channel - The channel of the device to open
  • hubport - The hub port the device is plugged into (where applicable)
  • ishubport - Specifies whether this channel should be opened on a hub port directly, or on a VINT device attached to a hub port.
  • remote - Forces connection to a remote device over a network, ignoring devices on the local machine
  • local - Forces connection to a device plugged into the local machine, ignoring network devices

Write Code

Specifying a Phidget

For instance, to open a VoltageInput with serial number 349428, you would use:

Some other examples:

Open a Digital Input:

PhidgetDigitalInput

Open channel 1 of a Digital Input Phidget connected to port 2 of a hub with serial number 35569

PhidgetDigitalInput serialnumber=35569 channel=1 hubport=2

Open open hub port 2 as a DigitalInput for a hub with serial number 35569

PhidgetDigitalInput serialnumber=35569 hubport=2 ishubport=1

Write Code

Using a Phidget Over a Network

To use the Network Server, first the Phidget needs to be plugged in to a computer that has the Network Server turned on within your local network. (For information on how to do this, see the Phidget Network Server page in the section on how to use the Network Server for your operating system).

Next, in your patch you need a PhidgetNet object. To automatically find local networks, send it a message saying enableServerDiscovery.

Then, to connect a Phidget over the network, change the object text to specify it is to connect to a Phidget on a remote server, as per the following example.

Write Code

Step Two: Wait for Attachment (plugging in) of the Phidget

Although this is a required step in many of our other languages (and therefore you may be expecting this if coming from another Phidget language), in Max you do not have to add a specific waitForAttachment block.

Keep in mind, however, that if your Phidget is not responding within your Max program, it may simply not be plugged in! Send a getAttached message to a Phidget object at any time to see if it's attached.

Write Code

Step Three: Do Things with the Phidget

Phidget data is accessed either by one-time polling or at a fixed rate via on-board timers for some devices.

Getting or setting values directly via polling on the Phidget is done through messages linked to the inlet. The object’s inlet can be wired to send commands to the device, and the outlet used to retrieve the results. You can set values on the Phidget by using the set messages, and some properties can be read with get messages:

To sample at a fixed rate, use the start and stop messages to start and stop the data flow, respectively.

Write Code

Step Three: Do Things with the Phidget

Outlet data is always given a prefix to allow for routing. For instance, the digital input state state change event data is given the prefix stateChange, and the voltage input voltage change event similarly use voltageChange. The specific prefixes for each set of outlet data is listed on the API page for that class.

The rightmost outlet on the Phidget object outputs error event data. This will send information on error events such as saturation events. To see which error events may apply to your device, check its API page.

Write Code

Step Four: Close and Delete

Although this is a required step in many of our other languages (and therefore you may be expecting this if coming from another Phidget language), in Max you do not have to add a specific close and delete block.

Special Case: Multiple Phidgets

Multiple Phidgets of the same type can easily be used inside a single program, it only requires another Phidget object placed. If two of the same type of Phidget object are placed, the serial number and channel arguments should always be specified (as well as hub port, if applicable) to ensure that the correct Phidget gets associated with the correct object.

What's Next?

Now that you've set up Phidgets in your programming environment, you should read our guide on Phidget Programming Basics to learn the fundamentals of programming with Phidgets.

«
»


Quick Downloads

If you already know what you're doing and just need the files, you can find them all below.

Documentation

Phidgets Max Libraries

Max Example Code

Phidgets Core Libraries