Jan. 24th, 2012

johnridley: (555)
I assembled another demo of the new blinkie, this time with blue LEDs. Then I discovered that these blue LEDs are bright. I mean, they're really, really retina searingly bright.

So I spent the evening adding brightness control code to the firmware. I managed to work it in to the single-button control in a way that I hope is not too confusing.

As a bonus, the dimmer modes should really stretch the battery life - the dimmest mode with the blue LEDs is still reasonably bright, but the LEDs only run 1/255th of the time. For all I know the thing could run a few hundred hours on a set of batteries in that mode even wtih blue LEDs.

August 2025

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