p_leriche @ instructables.com build a USB volume control which is simple, cheap and extensible. Check it out:
I’m not the first person to publish an Instructable for a USB volume control, but I think this one is about as simple and cheap as it gets, and at the same time can be extended at minimal cost to various other functions such as:
Mute, Play, Pause and various other media buttons
Keyboard LEDs such as Caps Lock, Scroll Lock and Num Lock (a kana LED is also defined for Japanese users)
Application launch buttons such as browser, email, calculator etc
Browser navigation and other application control buttons
System buttons for functions such as Sleep, Hibernate, Wake, Power down
Mouse buttons and movement
and many more, subject to support being provided by your operating system. Mine implements the volume and mute functions (mute by pressing the knob) and the 3 main keyboard LEDs.
Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)
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