-I have a failed Sumobot equipped with parts salvaged from Dollar Store spray fans (fill the reservoir with water, use the pushbutton to squirt and the fan...
59859
jonjb2a
Jan 1, 2010 4:55 pm
Something as simple as a bristlebot (toothbrush head, pager motor and button battery, with short black and red leads, of course) can be a battlebot in its own...
59860
Luca Crisi
lcrisi
Jan 2, 2010 10:30 am
Arno ha scritto: I like that idea,maybe a solaroller with add ons.....A good next project. jonjb2a wrote: I know Sumobots can be used in competitions but has...
59861
Steve Reigh
pennstate741
Jan 2, 2010 11:02 pm
Hey guys! I just wanted to remind everybody that we are still having the BEAM build off competition! You need to post in the following link by the 5th of ...
59862
Marcin
pingwingugu5
Jan 2, 2010 11:58 pm
Hi, everyone. Till I have no time and idea to make mechanical part of NSD walker (I'm experimenting on breadboards with using MaxiBug as a control for it too...
59863
jonjb2a
Jan 3, 2010 10:52 pm
I just built a virtual version of Robert the robot (vintage 50s toy) in Second Life. Actually my version of the toy with a few details i overlooked (memory...
59864
jonjb2a
Jan 3, 2010 10:57 pm
I want to do something similar with a few RC vehicles as well (cars, trucks and I think maybe a motorcycle). Was wondering whether to wire a bicore circuit...
59865
Holiday & Resorts
ashishtop5
Jan 4, 2010 7:50 am
India's No. 1 holiday brand. Check if you are eligible Enter Your Details & Check if you are eligible Check Here !! Scheme Valid of Few Customers...
59866
jonjb2a
Jan 4, 2010 5:00 pm
Has this message to do with BEAM Bots? If not, it certainly does not belong in this forum....
59867
jodicalhon
Jan 5, 2010 9:34 am
The 74HC14 has an absolute maximum supply voltage of 7V, so you can't run it from 9V. This means that you can't use it to turn your h-bridges on/off if you are...
59868
J Wolfgang Goerlich
jwgoerlich_us
Jan 5, 2010 10:52 am
Hello Marcin, As a possibly interesting aside, the first "photovore" was a battery-powered RC car. The design and its study was published in Omni Magazine in...
59869
Thomas Saddler
thomas.saddler
Jan 5, 2010 10:58 am
i would love more diagrams on the lm 386.. my son who is 8 has shown great interest. i am very familar with electronics and goto college for computer...
59870
Steve Reigh
pennstate741
Jan 5, 2010 4:48 pm
Hey guys, This is the last reminder that today is the last day to sign up for the BEAM Build off competition! I may potentially be lenient for people that ...
59871
David Buckley
robots42
Jan 5, 2010 5:51 pm
The Tandy Red Fox Racer based OmniVore by Jonathan Connell was an outcome of his work at MIT. I had been building all published designs I could find for small...
59872
Marcin
pingwingugu5
Jan 6, 2010 3:04 pm
Thanks. So I need a 6t H-bridge (you mean like the Tilden's one?) for "engine" motor, and something smaller for turning motor (it's a small car maybe the head...
59873
graybeard2ca
Jan 6, 2010 3:27 pm
Hi, Wolfgang et al. Electronics Today magazine in May 1978 published a project for turning a toy car into a White Line Follower. That sounds similar and...
59874
David Buckley
robots42
Jan 6, 2010 3:49 pm
Hi Tom Do you have a copy of the article? Everyday Electronics, June 1975 published a design for a Line Following vehicle. Radio Control Models & Electronics,...
59875
Thomas
thomas.saddler
Jan 7, 2010 12:32 am
HI there, My name is Thomas and I have recently started building robots with my 7 year old son. I found some great books and projects but I want to master one...
59876
jodicalhon
Jan 7, 2010 7:42 am
No worries. The 6T h-bridge must have NPN input transistors, not PNP. Jo...
59877
jodicalhon
Jan 7, 2010 7:48 am
Hi Thomas, The only schematic I have like that is here: http://tech.groups.yahoo.com/group/beam/files/Jo/HERBIE_WITH_TOUCH_MEMORY.gif It's one of Wilf's. Jo ...
59878
jodicalhon
Jan 7, 2010 7:56 am
I've uploaded it to tinypic, in case you can't get it from the file system. http://tinypic.com/r/b81no8/6 Of course, after doing that I find I can access the...
59879
Thomas Saddler
thomas.saddler
Jan 7, 2010 8:29 am
thanks so much.. this will great.. have a great day jodi ... From: jodicalhon <jodicalhon@...> Subject: [beam] Re: ? To: beam@yahoogroups.com ...
59881
Marcin
pingwingugu5
Jan 9, 2010 11:58 pm
Hi. I've made the reverser and the H-Bridge on a breadboard and it's working :D . For first time I've used small BC556 and 547 trasistors and it wasn't work...
59883
Chris McGuire
cmcguire79
Jan 15, 2010 2:52 am
Hello all! I've spent the last few weeks re-working my bench, in anticipation of SparkFun's "Free Day", which I thought I'd be able to pick up an oscope kit,...
59884
Chris McGuire
cmcguire79
Jan 15, 2010 3:00 am
Hello again! This is a different subject, so a new message.. I once heard of a transfer kit one could purchase, it contained traces, sockets, all the usual...
59885
J Wolfgang Goerlich
jwgoerlich_us
Jan 15, 2010 4:31 pm
Hello Chris, I, too, failed to obtain anything from SparkFun's Free Day. It was fun trying, though, and watching the IRC conversation. Anyways, depending upon...
59886
J Wolfgang Goerlich
jwgoerlich_us
Jan 15, 2010 5:06 pm
Hello Chris, ... Are you thinking of Pulsar's PCB "Fab in a box" kit? I have seen these kits and seen robots produced by them. But I have never used one...
59887
jabmechtech
Jan 15, 2010 5:59 pm
this is an exserp from the electronic exspress news letter. some might find it intereseting. the thought of microscopic solar powered nano bots comes to mind,,...
59888
Chris McGuire
cmcguire79
Jan 15, 2010 9:45 pm
Hi there, Yes, most did, from what I hear. What's really sad is that there's already a lot of things popping up on ebay.. Sparkfun is a good idea, and I wish...
59889
Richard Piotter
richfiles
Jan 15, 2010 10:26 pm
The transfers are not conductive. They are called dry transfer decals if I recall, and I have used them in the past. you do rub them from a clear plastic sheet...
