Greetings all, So I was looking at the pummer pages on sb.net, and came across Wilf's Solar regulator. It basically charges up the capacitor to around 5v, but...
I reckon I got first dibs as far as Customer Reviews are concerned at Amazon for "JunkBots, Bugbots, and Bots on Wheels: Building Simple Robots With BEAM...
Greetings all, My apologies for launching into a request for help with my first post but I'm rather at my wits end (not that far I suspect) I've built a Power...
Can anyone help me find a place that gives out somaples of the 74HC390 chip? I've been looking everywhere. I need 6 or so of them. I heard that they were...
Hey Frenz! The CAD software on the files section...what does it do? I mean I wouldn't expect a 220 KB s/w to do much. Also, I am asking this cuz I couldn't use...
Hey Gord, The Joule Thief is supposed to light an LED that needs a high voltage (like a blue or white one, about 3.6V), with a 1.5V source. It puts spikes of...
Having completed a highly satisfactory photopopper, I finally began the Bicore Head kit I got last summer from Andy Pang. Didn't bother to breadboard it (it IS...
They are called wire ties FYI, because they are used to bundle wires together. They DO lock solidly so there's no reason not to use them in mechanical...
Has anyone seen hall effect devices that operate like a variable resistor? If so, it might be a relatively nice means of performing as an analog limit switch....
I'd like to warn you... this is about the hive. If i used calculator solar cells on my minions (drones) to fill up the hive, would the bots that recharge in...
Why, thank you. Glad you liked it. I figured you'd get a chuckle out of it. OK. No chicks or dough, but please tell me chocolate will be involved. John S. ... ...
I'm a EE student and we've chosen to build a solar engine (Solar Roller kit from solarbotics) for our class project in circuit analysis. We'd like to analyze...
Those plastic fastener-things that loop through themselves and have little teeth that lock them in place are really useful and much easier than soldering in...
Hey all! Dave has just posted this on Solarbotics.com: "We just received word that the book that we had heavy involvement with is nearing distribution! Keep an...
I noticed that they are taking components off the walls a few years ago. And it didn’t surprised me. I had gone in many times on emergency runs to grab ...
Gang, Courtesy of Tom Gray, there's a new article up on the Solarbotics.net "Starting Block": a tutorial on making your own ball casters for smooth surface...
whel here's another contest, this time out of MY sick head :) I am daring you all to joint the ugliest beambot contest. Things I need: -one or two people who...
Good thing I am off tomorrow, almost midnight and I am still catching up on posts! Ben, your variety pack may still be a bargain. You breadboard your ...
i finnaly have a pats supplier through a repair shop with junk that they give away! i'm going in tomorow and i wondered what is rich with inverter IC's like ...
Greetings all, I was just wondering if anyone knew where I can obtain some tubes of that fine, white grease you find in gear motors. Thank you! Cheers, ...
Yesterday I suddenly remembered we had an old VCR hidden away in a dusty corner (OK, with 2 cockatiels ALL our corners are dusty!) With a manic grin I cracked...
I've had a slow couple of weeks with my bots, and decided that I was moving too fast. I have all of the parts for a head and a 2M walker ready, but never got...
Bill, thank you very much for doing these tests! I have those ferrite rings like you used in number 2, but didn't even try them. How many winds is that? Well,...
I stumbled across this the other day. It looks like it charges a big cap over a long period of time (24hrs) or something like that. Applications in Beam? Yeah...
i've got to start looking for colleges this year and i wanted to know if anyone here had any sugestions for colleges and what employers might be looking for...
Hi everyone, I've been thinking more and more about the use of Dial Tone for robot communications. I just wanted to ask, is it possible to put an IR LED at the...
I built a bot using about the same circuit as the cigarette add I mentioned a while ago. go here for the scheme. All it does is twitch... you guys take the...
Hi Vishy, I have tested the power-circuit with a 6V 60mA relay and 5Vcc power supply. It works fine so I think you don't have a correct driving from 74hc245 or...
