yeah, pot is an ugly way to change the current of a power LED, but I'm not kicking any one, I love the saber Gelukandhar has made for instance.
The problem to make such board is that you need 3 independant PWM running at at least 30 KHz and with a 10 bit resolution.
I'm working on that as well, I have my own part for a tri lux. I know how to do it, but it will require an additionnal microcontroller to handle the PWM. Sounds like I'll have to split functions with sound at one end of the board, and lux power at the other end. Length of the board will be doubled. Many more features are planned on that tri lux version : white flashes during clash, color subtile changes for energy shimmering to get the blade alive (I'm already doing that, but with just intensity of a single colors) and of course : radical color change from blue to red héhé...
Erv'
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