The GPIO keypad input

We have seen how we can monitor inputs on the GPIO to launch applications and control the Raspberry Pi; however, sometimes we need to control third-party programs. Using the uInput library, we can emulate key presses from a keyboard (or even mouse movement) to control any program, using our own custom hardware.

For more information about using uInput, visit http://tjjr.fi/sw/python-uinput/.

Getting ready

Perform the following steps to install uInput:

  1. First, we need to download uInput.

    You will need to download the uInput Python library from Github (~50 KB) using the following commands:

    wget https://github.com/tuomasjjrasanen/python-uinput/archive/master.zip
    unzip master.zip
    

    The library will unzip to a directory called python-uinput-master ...

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