Search found 8 matches

by r00bin
January 27th, 2009, 2:15 pm
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

If you did hook the terminals up the wrong way and try to power it, the RCX might never start up again. It did it to one of mine once. I eventually got that RCX replaced by Lego at no cost, but I had to buy another for competition since Lego doesn't exactly overnight their replacements. Yeah, I tri...
by r00bin
January 27th, 2009, 1:57 pm
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

OK, I'm in a really bad situation. I was using a TI DC to DC power inverter to power my lego rcx. I think I connected the power terminals the wrong way the first time and now the rcx won't start up. I tried placing 6AA batteries into the rcx however it still fails to start. Does anyone know what the...
by r00bin
January 12th, 2009, 6:47 pm
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

gh wrote:
r00bin wrote:Just for rule clarification, if we bring a laptop to program a Lego RCX, do we have to impound the laptop with our vehicle?
Nothing posted on this forum can really be counted as official, and that sort of thing is determined by your tournament directing people anyways.
ok, thanks
by r00bin
January 12th, 2009, 5:45 pm
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

Just for rule clarification, if we bring a laptop to program a Lego RCX, do we have to impound the laptop with our vehicle?

Thanks
by r00bin
January 5th, 2009, 12:31 pm
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

I have another question about determining what resistor to use. In the post by nickfastswim, he suggests Well it was a old converter i found laying around in my stuff, so don't remember where i got it. Its approximate specs are: Voltage in (min)~4.8v Voltage in (max)~12v Voltage out (min)~15v Voltag...
by r00bin
January 4th, 2009, 10:16 am
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

Dark Sabre wrote:Check out the product documentation for what the "booster" looks like.

The first page of that documentation also shows a typical circuit, which has those same capacitors (which I believed are being used for voltage smoothing).
AH!

Ok, things are making more sense. :D

Thanks
by r00bin
January 4th, 2009, 10:05 am
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

Also a couple of images for how you might want to add the TI boost module to your battery case: 4/IMG_4171.jpg 4/IMG_4166.jpg Is that what the sample voltage booster from the TI website looks like? It looks as though the center PCB is the booster and it's connected to a home made circuit wafer with...
by r00bin
January 3rd, 2009, 10:41 pm
Forum: 2009 Build Events
Topic: Electric Vehicle C
Replies: 395
Views: 124631

Re: Electric Vehicle C 2009

Hi, I'm currently working on electric vehicle and I'm trying to use the lego RCX micro controller. The problem I'm having is with power. The rules specify that only "4 batteries rated 1.5V" maybe used. The RCX is designed to use 6 AA batteries. I tried running the processor on only 4 batte...

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