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Star Trek: Attack Wing» Forums » General

Subject: Schematic for Borg Cube LED Mod.. rss

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Daniel van de Laar
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Twenty years ago, I probably wouldn't be asking anyone to check over my work and see that it makes sense. But before I go ahead and order parts, I wouldn't mind someone else who knows a thing or two about electronics to peek over this bicolor LED mod I drew up this evening.



Forgive me if it doesn't look all that great, I was using schemelt for the first time, and they didn't have bicolor LEDs the last time I worked out a schematic. (Do we even do Nodal Analysis anymore?)

Anyway, the way I want this to work is with a rocker Double Pole, Double Throw with an off setting, determining which color to turn on (Green or red in this case). The LED I picked has different voltages forward depending on whether your turning on the Red or Green LED, so figuring for two 2032 3.2 batteries in series, (6.4 V altogether), and keeping to the prescribed 10 mA spec'd for the diodes, I figure the resister values should be what I have there - as I am wiring them in series by way of the DPDT switch.

But I haven't done this sort of thing since Reagan was in office, so another set of eyes wouldn't hurt.

Thanks in advance Mr. Internetz

DANVAN
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Daniel van de Laar
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C'mon, I know there must be some techies amongst the trekkies.
 
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Trav
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Forwarded this to one of my EE buddies and his response was:

"Should be fine, he can tweak the resistors to get the desired brightness."
 
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Daniel van de Laar
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bbqsandwich wrote:
Forwarded this to one of my EE buddies and his response was:

"Should be fine, he can tweak the resistors to get the desired brightness."


Thanks friend. That was my main concern. I had considered a couple of variable resistors to dim/brighten it, but that might be overkill. I may also forgo the bicolor LEDs and just use mono-colored LEDS wired up the same way - gives me more freedom to tailor the brightness.

Probably going to order the parts from digikey in the next week.

Thanks again.
 
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Could some please help with LEDs and resisters.
I have some green LEDs. That are 2.1 volts - 30mA - 630mcd. What I need to know is what type of resister would I need if I use a CR2032?
Thanks
 
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