Ummmm. Four (probably silly) questions, but I have to ask. (I'm not all that experienced with reading circuits, and I'm building a minisumo, myself.) The two...
Hi. Does anyone know what causes my FLED solar engine to lock up quite frequently, even in very bright light? When this happens the voltage across the caps is...
Hi Every One, I would like to announce June's Buildfest date as June 10th. Our guest speaker this month is none other then Wolfgang Goerlich who has done...
Good question, firnagzen. I never thought of that bridge, even though I'd been playing with it, for another reason, just a couple of days before I started...
Very simple problem to fix. As you noted, when you covered up the engine, it will fire. This is because in very bright light the FLED will not trigger. Maybe...
Doug, Something like this happened with my first Symmet. As I recall, it was more of a function of the motor than anything else. The fix (in this case) was to...
Woody Thanks for that, but I don't think it's the FLED. As I said in my post, the FLED is covered with black tape and the thing works very well in direct ...
Thanks David. I'll give it a go ... From: beam@yahoogroups.com [mailto:beam@yahoogroups.com] On Behalf Of David Treadwell Sent: 01 June 2006 22:39 To:...
Does such an IC even exist? I've been trawling through google, looking for it, but there doesn't seem to be one. Does this IC even exist, or will I have to...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the beam group. File : /Jo C/biomech...
beam@yahoogroups.com
Jun 2, 2006 11:55 am
53725
Thanks firnagzen, just the nudge I needed. Because I was after a bridge with (1) a brake and, (2) the ability to drive high voltage motors from lower voltage...
Hello Doug, The storage capacitor's voltage must fall below 0.75V to turn off the transistor latch and reset. Either your solar cell is supplying too much...
Hello all, I am going to do some hacking on my Robosapien V1 this weekend. I was wondering, does anyone know how to make the Robosapien walk without its...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the beam group. File :...
beam@yahoogroups.com
Jun 3, 2006 5:55 am
53730
Just two diodes and a current sensing resistor will limit the current to about 300mA during a short circuit. Note that with a 12V motor supply, the NPN output...
Hello, new to Beam, and have some questions. 1.What is the best source of materials and kits for entry level Beam or Solar powered robot builders? 2.What part...
Hello and welcome, ... The top three, in alphabetical order, would be: Bug'n'Bots Home of the Fred Kit http://www.bugnbots.com/ JCM Inventures Home of the...
Hi Don, Welcome to the BEAm group! Here are some websites to check out: www.solarbotics.com -- commercial, kits, parts www.solarbotics.net -- reference ...
Hi Don, Sorry about that. The correct link is http://costaricabeam.solarbotics.net/index.htm Solarbotics offers free webspace to BEAMers. I typed in the link...
Andy Pang has some reasonable kits and parts. http://www.solarbug.com/solar-kit.html _____ From: beam@yahoogroups.com [mailto:beam@yahoogroups.com] On Behalf...
Ahh, that's great, Wilf. Well, I got the 'piece of old string' bit wrong, but I was spot on with the 'two diodes'. (I've just measured the resistance of a wet...
I know he was out for a while and then was back but maybe he is out again. Its been a while since I ordered from him. _____ From: beam@yahoogroups.com...
... reply, is ... I ordered from Andy a bunch of times and have always been happy with the service. The last time I ordered from him was a month or two ago, so...
Hello, The Beam Online frame tutorial is a good place to start. The only downside is that, if you build it with a single solar engine, it will go straight and...
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