Hi wilf, do you have any testing circuits to recommend to check the bread and butter chips of beam namely for example the 74HC240,the schmitt inverter and...
54435
Randy Cox
randykcox
Sep 19, 2006 8:19 pm
... I found a 555 tester circuit online a while back. I haven't built it, but maybe you will find it useful. Here's the link: ...
54436
wilf_nv
Sep 20, 2006 3:15 am
Never thought about beam test circuits but one idea that comes to mind is to make one circuit that exercises all inputs and outputs of the 555, hc14 and hc240...
54437
jabmechtech
Sep 20, 2006 5:33 pm
Hi all. I hooked up the motor leeds to my multimeater and spun the wheel, the needle bearly jumped, it looked to be about 5 or 6 ohms. I took the thing apart...
54438
Randy Cox
randykcox
Sep 21, 2006 4:29 am
How does one accurately test the winding resistance of a motor, anyway? Whenever I try (by hooking my ohmmeter to the solder tabs on the questionable motors),...
54439
firnagzen
Sep 21, 2006 9:46 am
You don't do it that way. You hook it up to a known voltage (say 5v) and measure the current with an ammeter hooked in series. Using Ohm's law, Voltage=...
54440
jabmechtech
Sep 21, 2006 5:46 pm
Hi all. First of all thank you for all the help. I got a chance to build this morrnig and it worked . I used Playstation controler motors, a 6V "AAA" pack with...
54441
Harold
haroldilano
Sep 22, 2006 3:50 pm
Hi guys! Finally, I've finished my latest bot named Rovore. You can see him in my site at: http://haroldsbeambugs.solarbotics.net/rovore.htm Please feel free...
54442
jabmechtech
Sep 22, 2006 5:20 pm
... if ... keep ... Jabmechtech...
54443
Phil McCary
phmiii
Sep 23, 2006 3:41 am
Harold: Very cool !!! This may sound strange, but I very much like the idler wheel concept that you are using. I will be using it in the future. Best BEAMing, ...
54444
Harold
haroldilano
Sep 23, 2006 9:27 am
Hi Phil! Many thanks for the compliments, I appreciate it and to those who visited the site. I wish I could do more with my site as well as my bots. Hmm......
54445
Harold
haroldilano
Sep 24, 2006 6:52 am
Hello group! Well, just to let you know that I've uploaded some video clips of this bot. Please come and enjoy! Happy BEAMing! ....Harold. P.S. Some video...
54446
Harold
haroldilano
Sep 24, 2006 11:45 pm
'Hope you guys have a nice weekend. Anyways, I'll just wait for rovore to be low in voltage so I can take some video clips of it showing of being phototropic...
54447
Harold
haroldilano
Sep 25, 2006 3:21 pm
Hello! I've just added another video clip of Rovore. Well, one more to go... I mean one more video clip to go and I'm done. Enjoy! :) ...
54448
Deepak Soman*
deepu_kuttans
Sep 26, 2006 4:07 pm
Hi Harold, I am new at BEAM but hav heard a lot about it.. And I am in a Project to make a Sound Sensing Beam robot.. Motor Controlled... Can U help me in...
54449
Harold
haroldilano
Sep 26, 2006 10:56 pm
Hello Deepak Soman! It's good to have you in BEAM community, welcome! Well, as far as I know, sound-sensing BEAM bots are still in progress or experimental ...
54450
Harold
haroldilano
Sep 27, 2006 12:01 am
Hello Deepak! Here's a link to a sound-sensing bot, just a sample, but it looks really cool! You can keep searching in google, I sure there are lots of this...
54451
firnagzen
Sep 27, 2006 9:33 am
I believe there are 1.8 volt ICs on the market, are any of them the more commonly used BEAM chips? KLike Schmitt inverters, inverters and so on? If there are,...
54452
Harold
haroldilano
Sep 27, 2006 1:12 pm
Hello group! Just dropping by to let you know of my site's update, Rovore. Just additional infos on the circuit, etc. Have fun guys! ...
54453
incarez tingcang
inca_1979
Sep 27, 2006 5:46 pm
i am looking for or searching any idea to make my beam/ solid state robot avoid obstacles by utilizing ordinary IR LED emitter and IR photo diodes... is my...
54454
Joseph
njshell@...
Sep 28, 2006 2:58 am
Hi---I wish I could assist you as I have been dabbling along the same line but no luck so far. If you get any ideas pass them along---Best of luck----JES...
54455
wilf rigter
wilf_nv
Sep 28, 2006 3:54 am
Why of course this is possible. Can you give some idea of the distance involved and whether you could use simple HC logic or all discrete? wilf ... From:...
54456
wilf rigter
wilf_nv
Sep 28, 2006 4:03 am
I have used some 3V hc logic. Be careful that the inputs are not designed for interfacing with 5V logic i.e. they must have input protection diodes to gnd and...
54457
jabmechtech
Sep 29, 2006 1:38 am
Hi all. I have an idea without the meens to make, so I'll pass it along and see what happens. BEAM copter. ... [] Shaft [[IIIII]]Supper cap [IIIII] ______...
54458
WilliamChops Westfield
westfw
Sep 29, 2006 9:37 am
... Some of those are spec'ed to work down to 0.8V, ie: http://focus.ti.com/docs/prod/folders/print/sn74auc240.html Not much current capability, though. BillW...
54459
Harold
haroldilano
Sep 29, 2006 11:41 am
Ok, I just finished uploading new pics of Rovore at: http://haroldsbeambugs.solarbotics.net/rovore.htm I hope you'll like it. Anyway, I'll see if I can make...
54460
domenico
d_mancini
Sep 29, 2006 5:06 pm
Really wonderful ! ... From: "Harold" <harold.ilano@...> To: <beam@yahoogroups.com> Sent: Friday, September 29, 2006 1:39 PM Subject: [beam] More pics of...
54461
jabmechtech
Sep 30, 2006 3:42 am
hi all. I'm tring to gather the parts together for a solar turbot. but I can't find a list of what I will need. I already have GM3gear motorX2, ...
54462
Harold
haroldilano
Oct 1, 2006 2:58 am
Hello Jabmechtech! Thank you my friend, I really appreciate it. Well, Rovore is using 2 standard hobby servos and the tires are bought in an auto supply that's...
54463
jme_cd
Oct 1, 2006 3:52 am
Hi, I am studying Robotics Mechatronics at uni and for one of our assignments we need to interview an engineer. I am having trouble finding and engineer in...
