Ya: backlit keyboard - Rii Mini case study
werner at openmoko.org
Tue Jul 13 10:53:17 EDT 2010
I recently bought two Rii Mini RF keyboards:
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:
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.)
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