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.
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OS - Linux
Phidgets can run on Linux directly using USB, or remotely over a network using the Phidget Webservice.
You need kernel version 2.6 or later.
Getting Started (Libraries and Drivers)
The newest Libraries:
- Phidget Libraries
- Phidget C Examples
How to use the libraries:
- Download libusb-0.1 and its development libraries
- Try
apt-cache search libusb
in a terminal to find current packages - Or install from source, which includes development libraries
- Try
- Unpack and install the Phidget Libraries for Linux (download above)
- From the main libraries directory, run:
./configure
make
sudo make install
- This will compile phidget21.h and place the library into your gcc path
- From the main libraries directory, run:
- Download the Phidget C Examples and unpack them
- Compile and run the
HelloWorld.c
example:
gcc HelloWorld.c -o HelloWorld -lphidget21
sudo ./HelloWorld
- (The sudo is needed for USB access for now)
The program will simply print out basic information for any device you plug in, and print a message upon unplugging the device. For example, starting the program, plugging in an Interface Kit Phidget, unplugging the Interface Kit, and pressing Enter displays:
$ sudo ./HelloWorld
Opening...
Press Enter to end
Hello to Device Phidget InterfaceKit 8/8/8, Serial Number: 37299
Goodbye Device Phidget InterfaceKit 8/8/8, Serial Number: 37299
Closing...
Recommended Languages
Now that you have the basic libraries installed, you can pick your language and begin programming. You can use the following languages to control Phidgets on Linux. Each page has its own set of specific libraries, code examples, and setup instructions:
Webservice
Before using these webservice drivers, it may help to learn about how the Phidget Webservice works.
- Linux Phidgets Webservice libraries
- The Webservice on Linux uses
avahi
Common Problems and Solutions
None yet, yay!
Maybe talk about udev rules?