<p>The big feature I'm working on right now is Drone generated light modulation.<br />
I've built up some prototypes using 2 oscillators, next i need to experiment with all 4. The image below shows how the over lapping waveforms can be used as an LED modulating PWM signal.</p>
<p>http://casperelectronics.com/images/finishedpieces/droner/V2/light/pulseMethods.jpg</p>
<p>Combining the waves together by various mathematical means gives you a few different kinds of PWM (pulse width modulation) signals. You can use a PWM signal to control the brightness of LEDs.<br />
Adding is convenient because it takes minimal components and you can add several waves together, but the effect is a 50%-100% cycle modulation. In order to get a full LED fade (from full brightness to off) you need a 100%-0% spread. </p>
<p>This can be achieved pretty well with 2 waves through an XOR (exclusive OR) gate.<br />
 I'm thinking it might be cool to install a quad 2 input XOR gate IC in the Drone Lab and derive 4 different pulsing LEDs based on the relationship of various oscillators.</p>
<p>The next step after getting the pulsing LEDs is took hook up a series of LDRs (light sensitive resistors) to the filters and distortion and using the pulsing drone to modulate the amount of different effects. I tried it with the band pass filter and it sounds amazing.</p>
<p>I don't know if any of that makes sense, but there it is. I'll add schematics and video as soon as it's available.
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