 | | Motors
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Does anyone know where to get good motors that work good with the handyboard. I need geared DC motors because we dont want our project to be a racing car. If anyone has any answers or suggestions please email me back. Thanks. TIM ===== (25 years ago, 8-Oct-99, to lugnet.robotics.handyboard)
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| | GP2D12 and Handyboard
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Hi all! I recently got hold of a sharp GP2D12 ir range sensor (The analog version, not 8-bit serial) Upon connecting it to my handyboard (Vcc-5v, Gnd-Gnd, and Vo to analog port) I get between 249 and about 251 value from the analog port. Clearly no (...) (25 years ago, 8-Oct-99, to lugnet.robotics.handyboard)
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| | Re: pneumatic and hydraulic cylinders
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Am/Um 15:32 06.10.99 -0700 schrieben Sie: (...) Fischertechnik, too! Have alook at (URL) klick on 'Profi-kits (from 9 years)' Werner (25 years ago, 8-Oct-99, to lugnet.robotics.handyboard)
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| | More IR proximity detectors
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We're trying to use the little radio shack IR transmitter and reciever units to build our own. We're not sure exactly how this will work, but before we get too far, is this a reasonable thing to do? Will these be strong enough to use as proximity (...) (25 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IR proximity detectors
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(...) [snip] Andrew, Take a peek at (URL) and bonk on the IRPD project. Getting IR demodulators to work reliably is a bit more tricky that just looking for a bounce. I have done a LOT of work in that area and have found that you really need to take (...) (25 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IR proximity detectors
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you won't be able to easily) get distance measures with standard IR comms parts (such as the IS1u60). light travels too fast for the time delay betw xmit and rcv to tell you anything. as a proximity sensor, all you get is a yes/no reading. if you (...) (25 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | IR question
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hello all, quick question- inside the Handy Board Tech. Ref. we saw two IR sensors mentioned (Quality Tech. QRD 1114 & QRB 1114). we are wondering if anyone has used these sensors and knows how to obtain them? we have contacted our HB vendor, but (...) (25 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IR proximity detectors
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Andrew - - Take a look at Dennis' IRPD ... it uses a 12C508, 2 IR LEDs and a Sharp detector ... works great with the HandyBoard and off loads much of the processing to the PIC. If you want to do it with the HB, then do a search on IRPD and you'll (...) (25 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | RE: Retrieving data from the handyboard
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Interactive C can't handle 2D or 3D arrays.... instead another method needs to be used.. If your matrix was a 3X3 789 456 123 and rows went from bottom to top and columns from left to right then you'd have to come up with a formula using the row and (...) (25 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | IR proximity detectors
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I'm trying to set up either one or preferably two near infra red proximity detectors. I'm wondering whether the sharp IS1U60L component mounted on the handy-board is suitable for this type of application. We managed to make it work recieving codes (...) (25 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Retrieving data from the handyboard
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I need to transfer the data in a matrix on the HB to my win98 PC? I know a special program is necessary to interpret the signals going to the COM port. Does anyone have such a program or have the have some code that I can compile with VS 6.0? Here (...) (25 years ago, 6-Oct-99, to lugnet.robotics.handyboard)
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| | Re: pneumatic and hydraulic cylinders
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Lego makes pneumatic systems. If your needs aren't too demanding, you may find this a cost effective approach. Ross M. Tonkens, M.D. Medical Director Primary Care of Nevada 100 North Green Valley Parkway Suite 240 Henderson, NV 89014 702 914-7120 (...) (25 years ago, 6-Oct-99, to lugnet.robotics.handyboard)
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| | RE: pneumatic and hydraulic cylinders
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Reasonable is a such a subjective term ;>) You might look at (URL) They have a very broad assortment of small pneumatic stuff. Internationally available Parker http:/www.parker.com has all the big stuff you'll ever need... not necessarily cheap, but (...) (25 years ago, 6-Oct-99, to lugnet.robotics.handyboard)
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| | Re: pneumatic and hydraulic cylinders
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Hi everyone! can anyone recommend a place where i can get pneumatic and hydraulic cylinders, and hopefully at reasonable prices? my team and i are planning to build a robot making use of those cylinders. has anyone done the same? any advice would be (...) (25 years ago, 6-Oct-99, to lugnet.robotics.handyboard)
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| | Re: HB for science project?
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Date: Mon, 04 Oct 1999 10:00:02 -0600 (...) i have used a few PICs, but they have to be programmed in assembly language. but just recently i have found a compiler called C2C which converts C code into assembly code. C2C provides assembly code for (...) (25 years ago, 6-Oct-99, to lugnet.robotics.handyboard)
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| | LM35 Again
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Hi, I have been trying again to connect the LM35 temp. sensor (10mV/C) to one of the general-purpose Analog inputs (No pull-up), and I have no success, the result was the following: the analog( ) was 121, the equivalent aprox. to 250 C, obviously (...) (25 years ago, 6-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC motion control
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It turned out my motors was drawing too much current and thus kept resetting my board. After using a separate motor supply, everything work fine. Thanks. (25 years ago, 5-Oct-99, to lugnet.robotics.handyboard)
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| | Re: HB for science project?
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I forget the web page, but I did find a JAVA compiler for the HB online! It looks great! I havent had a chance to experiment with it yet, but it uses much less memory then IC and appears to be very powerful, might want to look for that. (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Re: HB for science project?
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(...) I'm afraid that I'm not qualified to recommend any PICs, but I do know about programming. Basic can be used to implement fairly complex algorithms, but it's not easy to use it for the really tricky data structures, and it would be almost (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Re: equivalent darlington pair
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Give me your address and I will send you a ZTX614. Colin (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Using 2 polaroid ultra sonic modules simultaneously...
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How would you use two ranging modules on the the same HB simult.? There are two different ways on the HB web site but they both use TIC3 at Dig. Input 7. How else would I be able to implement this? Any help would be greatly appreciated... -- --Peter (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | HB for science project?
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Hello, Recently, I have been thinking about using a HandyBoard for my science project in High School. My project will involve the writing of algorithms, and I was planning on programming in C. I have been using the Basic Stamp II (...) (25 years ago, 4-Oct-99, to lugnet.robotics.handyboard)
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| | Re: I have a Chalanging question!
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(...) This is a classic application for what is called an Instrumentation Amplifier. An IA functions just like an ordinary Op-Amp, however it typically offers close-to-rail-to-rail outputs and at least a very high input impedance. One would then use (...) (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC motion control
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It sounds like your motors could be drawing too much current, and re-setting the board perhaps. Matt -----Original Message----- From: Giang Tran <gt4025@chi.devry.edu> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: 02 October 1999 (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | I have a Chalanging question!
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ok I have to read a signal with almost no curent in the mv range and have it so a computer like the hb can detect it. now I dont mean just yes or no. I mean to watch the waves in the mv level and the circut cant distort it. couse dont amps just (...) (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | equivalent darlington pair
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Hi all, I have problem in getting NPN darlington ZTX614 in market.Suggest me some other Darlington pair with the equivalent characteristics of the above. Please give me the full details and kindly donot give any mailorder site's address. Jabbar (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: does a common pic programer work with the sx microchips
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(...) Nope - different programming algorith, different pins used. DLC (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: tiny gears
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(...) (URL) ___...___ Jonathan Pennington | -Wannabe Geologist/Anthropologist Charleston, SC | -Linux User and Advocate Email at jwp(at)awod.com | 83 V45 Magna "The Lighter Side" root@localhost (Spambot food) | 71 Triumph TR6C "Mistake" ---...--- (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | RE: tiny gears
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Kent: I'm not at work, so I don't have access to some catalogs there... but have you looked at W.M. Berg, PIC, Sterling Drive Components, etc??? I think they are all located in Connecticut, USA. hey specialize in very small precision gears and drive (...) (25 years ago, 3-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC motion control
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your motor probably draws too much current to work with the HB. unplug the motor and see if things work. if so, the problem is your motor. see the FAQ more for on how to choose a motor that works with the HB. fred In your message you said: (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | tiny gears
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I'm looking for a very small set of gears. For example, I need a worm with a 0.025" diameter bore and another with a 0.040" diameter bore. Both of these could be as long as 3/8". The size of the worm gears doesn't matter too much, although I'd like (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | does a common pic programer work with the sx microchips
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does a common pic programer work with the sx microchips ===== (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | IC motion control
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I am having problems with programming the handyboard using Interactive C 3.2. When I used the function fd(n) to test for continuous motor rotation, the board would crashed or it would only spin for a fraction of a second. Also, even when I put it in (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC on Irix
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(...) There's no reason there should be a problem with this. The HB interface uses fully standard serial comms protocols. All you have to do is get the right cable to connect the HB interface to your SGI. The HB interface acts like a modem with a (...) (25 years ago, 2-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IC on Irix
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(...) (25 years ago, 1-Oct-99, to lugnet.robotics.handyboard)
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| | IC on Irix
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Hello, I have seen on the Newton Labs website that IC is available for SGI Unix. Unfortunately I cannot find any more documentation than that. Does anyone know whether IC will work on Irix 6.2? Also, how do you download P code to the board? I think (...) (25 years ago, 1-Oct-99, to lugnet.robotics.handyboard)
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| | Re: no way to load an icb file !?!?!?
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You must strip the DOS carriage returns from the .icb file. Please see the FAQ for an automated way to do this: (URL) Fred (...) (25 years ago, 1-Oct-99, to lugnet.robotics.handyboard)
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| | Using separate motor power source with Expansion board
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Hi all, I have just modified my handy board to work with a 12V motor power source without doing much modification to the Expansion board. If anyone is interested in doing the same, just follow the directions listed below. 1. Follow the direction on (...) (25 years ago, 1-Oct-99, to lugnet.robotics.handyboard)
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| | no way to load an icb file !?!?!?
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Hi all, IC does'nt load my *.icb file. Why? I wrote this code in a *.asm file: TFLG1 EQU $1023 ORG MAIN_START subroutine_initialize_module: ldd #IC3_interrupt_handler std $FFEA cli rts variable_right_clicks: fdb 0 IC3_interrupt_handler: ldd (...) (25 years ago, 30-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Lo-Tech for Hi-Tech swaps, anyone?
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Professor Robson: I am an Electrical engineering student at Oregon State University. I am really interested in trading you for your stone carving (My wife is an Art major and collector), but I don't just want to send off a bag of misc. parts that (...) (25 years ago, 30-Sep-99, to lugnet.robotics.handyboard)
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