In SX Microcontrollers, SX/B Compiler and SX-Key Tool, kvwood wrote:

There was an article in the August 2006 issue of [i]Circuit Cellar[/i] on building an HID volume control. It used an Atmel ATtiny13 microcontroller and a MAX3420E USB controller.

From the article, it looks like it would be fairly straight-forward to build the device around an SX chip. Here is a link to the USB chip: [url]http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4751[/url]

I'm not certain if the FTDI chip is HID compatible. I think there was a recent post where one of the Parallax guys said it wasn't, but I can't finf the post...

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