Ya: backlit keyboard - Rii Mini case study

James "Xakh" Lynch superstuff7 at gmail.com
Tue Jul 13 10:57:50 EDT 2010


Hey, that's sort of similar to the idea I proposed, though a bit more
expensive. I support it, let's see what everyone else has to say about it!

On Jul 13, 2010 10:54 AM, "Werner Almesberger" <werner at openmoko.org> wrote:

I recently bought two Rii Mini RF keyboards:
http://www.ubergizmo.com/15/archives/2010/03/rii_mini_wireless_keyboard.html

One thing that impresses me with them is the very well-lit keyboard.
So I had a peek inside. This is how they did it:

http://www.almesberger.net/misc/ben/rii-outside.jpg
http://www.almesberger.net/misc/ben/rii-inside.jpg

There's one white LED every four buttons, plus a few extras for the
cursor keys. That's 22 in total.

By the way, the RF transceiver they use is a Cypress CYRF6936
(WirelessUSB, 2.4 GHz band.)
http://www.cypress.com/?docID=8979

- Werner

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