 | | Futaba receiver
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Hi! I am now modifying my old r/c truck to control it with the handyboard, but I want a circuit that will enable the receiver to control the servos when there is an output received from the radio control and to enable the handyboard to control when (...) (26 years ago, 24-Jun-98, to lugnet.robotics.handyboard)
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| | Re: finally got the download working
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I have also had problems and mishaps with the various downloaders... Sometimes DL will work in a full-screen DOS box, other times it doesn't. HBDL seems to work now, whereas it hadn't previously. I have no clue what is causing these to work or not (...) (26 years ago, 24-Jun-98, to lugnet.robotics.handyboard)
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| | IR emitter
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Is the ir emitter on the handyboard just a standard red led? Is it efficient at emitting in the IR range. Are there better emitters? I want to build an emitter and detector set and have studied the multiplexing circuit posted. It uses the same LED. (...) (26 years ago, 24-Jun-98, to lugnet.robotics.handyboard)
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| | Sharp IR Demodulator
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Anyone know where to get the one for the HB. I cannot find it anywhere. I would like to find a place that actually has them. Thanks -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd Amendment! Your rights may be next! ---...--- (26 years ago, 24-Jun-98, to lugnet.robotics.handyboard)
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| | Cirrus Servos - ???
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I have a Cirrus Cs-20 BB Sub-Micro Servo that I have been using for testing. I was wondering how this servo compares to others like Futuba and others. Since I know how this one behaves, I can use that info as a comparrison. What Futuba mode is (...) (26 years ago, 24-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Walking robot
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I didn't see the robot on the website I saw it in their catalog that they included with the Stampbug that I bought. Try contacting them, they may send you a catalog. John Hatton (...) (26 years ago, 24-Jun-98, to lugnet.robotics.handyboard)
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| | finally got the download working
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Thanks, Thanks to your suggestions, I was finally able to get the bootloader downloaded to my 2 handyboards. What I ended up having to do was use the DL.EXE program in full-screen mode. I've had no trouble using the Windows95 version of IC (v3.1) to (...) (26 years ago, 24-Jun-98, to lugnet.robotics.handyboard)
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| | re: encoders
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(...) (URL) 50 US$ -d The box said "Requires Windows 95/NT or better"... So I got Unix. Free the Source. Free your Computer... (3 URLs) (26 years ago, 23-Jun-98, to lugnet.robotics.handyboard)
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| | Re: can't download to save my life
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it sounds like it's *almost* working. 1. did you try DL, not DLM, in full screen dos mode? 2. try both of these as a DOS program. 3. did you try adjusting your serial port parameters in the windows control panel, a la the FAQ? fred (26 years ago, 23-Jun-98, to lugnet.robotics.handyboard)
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| | Re: inexpensive encoders
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Digikey has clarostat optical encoders, in the $30 to $40 range... fred In your message you said: (...) (26 years ago, 23-Jun-98, to lugnet.robotics.handyboard)
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| | mic circuit in Mobile Robotics
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The microphone circuit on page 118 of Mobile Robots is confusing me... Is that really a _1000uF_ cap? What kind of cap is the 10uF? No polarity is shown.... (26 years ago, 23-Jun-98, to lugnet.robotics.handyboard)
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| | re: inexpensive encoders
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Does anybody Knows where to get some inexpensive quadrature encoders optical encoders with A and B outputs??? thank you (26 years ago, 23-Jun-98, to lugnet.robotics.handyboard)
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| | can't download to save my life
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Please help!! I can't get the pcode_hb.s19 file into the handyboard to save my life. Upon looking through the archives, I've noticed some traffic that looks like it directly relates to my problem. However, I couldn't find a definitive solution. So (...) (26 years ago, 23-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Cheap air flow sensor
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Electronic Design "Ideas for Design" section had a interesting circuit for a Low-Power Thermal Airspeed Sensor in the May 25, 1998 issue. It's more complicated than the Elektor design but the ariticle helps explain thermal anemometry with the King's (...) (26 years ago, 22-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Cheap air flow sensor
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(...) (circuit and description deleted) Neat idea! It reminds me of a simple variometer (rate of climb/sink) circuit in an old RC glider magazine. It used two small naked bead or glass encapsulated thermistors in a bridge circuit and the thermistors (...) (26 years ago, 22-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Cheap air flow sensor (Sathe Dilip)
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(...) Nice ASCII art! I'm impressed. Brett Anthony Research Technician School of Engineering and Computer Science California State University, Sacramento e-mail: anthonyb@ecs.csus.edu phone: (916)278-6253 fax: (916)278-5949 address: Brett Anthony (...) (26 years ago, 22-Jun-98, to lugnet.robotics.handyboard)
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| | Mailing List
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Hi, I'd like to get on your mailing list. I don't have an E-Mail address as of yet so here's my home address. R. Gomez 343 Honan Ave. Johnstown, PA 15906 I'd appreciate any tech. info. you have. Thanks, Raf (26 years ago, 22-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Cheap air flow sensor
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Finally I managed to put the schematic of Wind-O-meter described in the Elektor publication in ASCII. Pl. set your reader font to something like courier to view it properly. I have taken some liberty with the opamp symbol to accomodate some (...) (26 years ago, 22-Jun-98, to lugnet.robotics.handyboard)
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| | re: encoders
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where I can find some inexpensive encoders with a quadrature output? preferable optical encoders thanks (26 years ago, 22-Jun-98, to lugnet.robotics.handyboard)
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| | Tracked Robots
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I just noticed the conversation about tracked robots. We have done some work with them here at the U of M. We have one of the Tamiya tanks. It is very nice, but only has one motor. If you want to do skid steering with both tracks at once, it will (...) (26 years ago, 20-Jun-98, to lugnet.robotics.handyboard)
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| | Re: RE - Mike Davis: Tracked Robots
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Most Hobby shops can order replacment parts for these kits. (eg. the treads and gears). The usually have catalogs that break out the different parts kits. (...) (26 years ago, 20-Jun-98, to lugnet.robotics.handyboard)
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| | additional motor drivers
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Is there an easy way to get additional motor drivers? I looked at the H-bridge information in the FAQ and it looks quite involved. Chad Humberstone EUCLID Mobile Robot Lab BYU (26 years ago, 19-Jun-98, to lugnet.robotics.handyboard)
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| | servo w/ 360 rotation? Hi torque?
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Are there any servos available with 360 or near 360 rotation? I'd like one with more than 42 oz-in of torque, too. Something closer to 150 oz-in would be nice. Thanks, Chad Humberstone EUCLID Mobile Robot Lab BYU (26 years ago, 19-Jun-98, to lugnet.robotics.handyboard)
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| | RE - Mike Davis: Tracked Robots
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Other than using Lego or fischertechnik tracks (about equal in durability) the only option I could come up with is (are) the radio control tanks made by Tamiya. You can find these at: (URL) Browse under Tamiya, Armor/AFV, 1/16 scale. The 3 older (...) (26 years ago, 19-Jun-98, to lugnet.robotics.handyboard)
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| | RE:Tracked Robots
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The Tonka toy dozer has some pretty tough tracks on it, but you would have to make the wheels. The ones on the toy are made of plastic too thin to attach a drive mechanism to. There may be a better solution, however. There are two options I think (...) (26 years ago, 19-Jun-98, to lugnet.robotics.handyboard)
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| | IC with Botboard 2
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Does anyone have experience modifying IC for use with the BotBoard 2? (i.e., changing address for the beeper, etc.) I have been able to get IC to download and run, but I would like to customize it to fit the hardward on the BB2. On a related note, (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | Servo Question - Cirrus
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I have a Cirrus Cs-20 BB Sub-Micro Servo that I have been using for testing. I was wondering how this servo compares to others like Futuba and others. Since I know how this one behaves, I can use that info as a comparrison. What Futuba mode is (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | Re: System interupt problems?
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you are correct, you are just attaching yourself to the beginning of the interrupt service routine, and the job of formatting system flags is taken care of by the ISR. however, i do see something that may be causing numerical errors. in the code, (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | Freewawre IC Error
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I just got my hands on a beautiful old monster of an AT PC (Cost=$0). I figured, why not transfer IC over to that computer, and use it in my workshop instead of programming the 'board on our main computer and then bringing it down to the basement. (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Walking robot - Related Topic
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Thanks, I already know of these. I think I might just try and build one myself. Finding all the h/w will be the hard part. (...) ---...--- Shoot-to-Win Protect the 2nd Amendment ---...--- (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | RE: System interupt problems?
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(...) I'm pretty sure that since the Handy Board also uses TOC4 as its system interrupt, that it takes care of clearing the interrupt. My code just gets linked in and gets executed before the Handy Board code (though I don't know what the HB code (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Walking robot - Related Topic
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Mike, I have actually seen only 3 reasonable quality walkers on the market (the 6 legged kind) but I have to admit that I haven't searched that far recently. Lynxmotion ((URL) do one which looks to be pretty good quality however it is a bit (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | RE: System interupt problems?
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Tim, I just scanned your code, so I might have missed it, but don't you have to clear (or set) a flag in your interrupt routine to reenable the TOC4 interrupt? Mike ---...--- From: Timothy B. Gold[SMTP:goldt@ee.byu.edu] Sent: Wednesday, June 17, (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Handy Board Header
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I once ordered male ED7xxx series and they work ok. I do like them. I never tried the female ones. According to HB manual, the Digi-Key parts are: 929974-01-36-ND - female 36 pins. 929834-01-36-ND - male 36 pins. Regards, -Pandit ---...--- (...) (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Hot Wire Anemometers
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(...) Actually, I'd want to modify the curve. Stock, the cars run very rich. For people interested in getting the most hp out of them, we'd want to be able to lean the engine out a bit (along with reducing the intake restriction). But this is (...) (26 years ago, 18-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Hot Wire Anemometers
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(...) Not to mention that the sensor that is already built-in to the car is probably non-linear as well, which means that the software in the car's computer is already set up for that specific curve. If you were to replace it with another (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | System interupt problems?
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I need some help! We have a handy board hooked up to some decoders, which we will use to help track our robot as it moves across the floor. We have to do a few pokes and a peek to read the decoders, but we've got it all set up and it works (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Hot Wire Anemometers
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(...) Mass airflow sensor on a Eagle Talon/Mitsubish Eclipse/Plymouth Laser. Hmm..it sounds like it might be a lot more work to actually get something like this to work reliably in a car where all of the above can vary by a great amount. -Paul (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Cheap air flow sensor
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(...) I'll have to check this out. We havn't actually used hot-wire-anemometers recently, partly because we havn't had the need, and partly because vortex-shedding flowmeters are all the rage right now. My memory is they are not linear, but that the (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | resistor network
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One more question. Are the resistor networks common bus or isolated? Thanks (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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