Search found 8 matches

by bradb667
Thu Dec 13, 2012 12:08 am
Forum: Lighting & Electronics
Topic: Adruino and Shields
Replies: 8
Views: 8554

Arduinos and especially any microcontrollers are a good way to achieve you goal. Personally, for me, I am using PICs. There are others such as from Atmel and so on. PICs work just as fine, who cares what you use? I learned Atmels (and the Arduino) first because of the low price-point and the fact t...
by bradb667
Fri Dec 07, 2012 8:20 pm
Forum: Lighting & Electronics
Topic: Adruino and Shields
Replies: 8
Views: 8554

Charlieplexing doesn't get you around the current limitation. All Charlieplexing does is allow you to control a larger number of LEDs with the same number of I/O lines. You're correct of course. I should have added that, thanks for the clarification. If you really want to control a larger number of...
by bradb667
Thu Dec 06, 2012 8:42 pm
Forum: Lighting & Electronics
Topic: Adruino and Shields
Replies: 8
Views: 8554

Re: Adruino and Shields

Will that fit into it? I forgot to add... you won't be fitting an Arduino with a shield mounted into very many models. That's a pretty large platform. Standard size of something like an Arduino Uno is 2"x3"x.5". Add a shield and you're talking 2"x3"x1.5" or so. There a...
by bradb667
Thu Dec 06, 2012 8:32 pm
Forum: Lighting & Electronics
Topic: Adruino and Shields
Replies: 8
Views: 8554

Christian- The problem with the Arduino by itself is that it's limited to supplying about 200mA on all the pins at any one time. Assume that's 10 LEDs each drawing 20mA. There are two typical solutions: One is to use charlieplexing (something like http://uzimonkey.blogspot.com/2009/01/charlieplexing...
by bradb667
Mon Nov 12, 2012 8:39 pm
Forum: Lighting & Electronics
Topic: I have a "black thumb" with electronics
Replies: 14
Views: 17660

Re: I have a "black thumb" with electronics

Nothing ever works! Gah! It's like I've got a black thumb or something . . . I know I'm a little late here but I wanted to add that it wasn't that long ago I felt the same way. Actually I was worse, I don't think I could solder two wires together without creating a mess at best, and a fire hazard a...
by bradb667
Wed Jul 04, 2012 12:20 am
Forum: Lighting & Electronics
Topic: How to combine lighting with portability?
Replies: 27
Views: 33317

Hey Jim- I'd think a switch could resolve the issue, sure. Really I didn't mean to imply doing this wouldn't work - I see photo proof in this very thread that seems to show it works fine. But as an example... say you were powering a Jupiter 2 off batteries and had the core effect running. Plugging i...
by bradb667
Sun Jul 01, 2012 2:24 am
Forum: Lighting & Electronics
Topic: How to combine lighting with portability?
Replies: 27
Views: 33317

FWIW, 274-286. And that is good to know because... Maybe it doesn't matter in this case, but if you use this jack for power (and the recommended female plugs on the other side), don't you momentarily short VCC to ground during plug insertion and removal? Might not be a good general-purpose solution...
by bradb667
Thu Aug 05, 2010 12:29 am
Forum: Lighting & Electronics
Topic: Trek Modeler 1/350 PL Enterprise Lighting Kit
Replies: 37
Views: 49638

Good/bad news...I found the link, but its out of stock until the end of the month. I would go ahead and order it as the shipping was pretty fast and it was pretty hard for me to find one with the correct output/current draw/plug size dimensions Not to be difficult, but people... please forget the w...