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Adding the Apple ‘breathing LED’ to a motorcycle



Adding the Apple ‘breathing LED’ to a motorcycle

[spiralbrain] has a beautiful KTM Duke 200 motorcycle, but he’s found the factory configuration is a little bit plain. Wanting to add his own unique touch to his bike, he decided to add a ‘breathing LED’ to the parking light that slowly changes its brightness much like the LED on recent Macs.

From the factory, [spiralbrain]‘s bike uses extremely inefficient (and somewhat ugly) T10 lamps for the parking light. This was changed over to a 12 Volt white SMD light bulb, but what really makes this build special is the way [spiralbrain] is controlling this lamp.

[spiralbrain] added a very tiny circuit consisting of an 8-pin microcontroller (a PIC12F683) that slowly dims the new SMD light bulb using the built-in PWM module. When the bike is taken out of neutral, the microcontroller stops at the highest PWM setting so the ‘breathing’ LED function is only engaged when not moving.

It’s an interesting mod that’s sure to draw some attention when [spiralbrain] is showing off his bike. As a bonus, the mod is completely reversible, so the bike’s warranty is still good.

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Via Hack a Day, Published: 2012.06.12


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http://hackaday.com/2012/06/12/adding-the-apple-breathing-led-to-a-motorcycle/