Re: how do you use a rcx light on a nxt
I'm not familiar with the RCX light (or the RCX system in general, being completely honest), but if they used standard LED's then this guide on Dimming an LED using PWM
(from our Arduino section of the wiki) may be useful if you want to learn how exactly the motor command is able to control an LED (the motor command sends out a PWM signal as well). Please correct me if the RCX light is not set up this way.
So if we push a negative value to one light, and a positive value to another light connected to the same NXT, point the second light at a solar panel...Infinite energy? We would need to pick up some flux capacitors from Tosche Station to power the cold fusion reactors, of course.
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