 | | 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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| |
| | Re: speech recognition
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|
Hi Lee - - Here are links to the two that I've been playing with for a short while. (2 URLs) - Nick - (...) (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| | speech recognition kit
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Hi, everyone :) we are trying to build an interactive robot which will react to voice commands. does anyone know any good speech recognition kit that we can use with handyboard? thanks for your inputs. :) lee (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| | RE: speech recognition
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Good is relative, and I don't have a handy board (so everything hereafter is at best, suspect). You might look at the boards at WWW.imagesco.com. I don't know anything about them..... Jeff jeffrey.hazen@northmill.net -----Original Message----- From: (...) (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| | speech recognition
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hi, everyone. we are trying to build an interactive robot which will react to voice commands. does anyone know any good speech recognition kit that we can use with handyboard? thanks for your inputs. :) lee (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| | how to address expbd servos via machine language?
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|
Hi everybody, I use one of the servos connected to my expansion board to make a continuously sweeping movement for an IR proximity sensor which is attached to this servo. At present, the code for generating the necessary servo position commands (...) (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: 9.6V POWER AND 9V MOTORS
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(...) Measure the resistance of the motor's windings. Motors are typically rated in max current, NOT max voltage. Take any voltage and divide it by the winding resistance to get the current the motor will draw at stall (and when it is initally (...) (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| | 9.6V POWER AND 9V MOTORS
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Question? The 9.6v battery in the HB is ideal for running 9v motors, correct? So wouldn't it be true that the motors of an R/C car which also has a 9.6v battery be 9v??? How do you go about finding the voltage and current drawn in a DC motor??? (...) (25 years ago, 29-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: PCODER22.S19
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|
Your loading the wrong pcode file, you need to load pcode_hb.s19, not pcoder22.s19 Matt -----Original Message----- From: Paul DaCosta <germano@voicenet.com> To: Handyboard <handyboard@media.mit.edu> Date: 28 September 1999 16:57 Subject: (...) (25 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| | PCODER22.S19
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|
hey everyone, i need help i cannot download ic to my hb, i followed the instructions, but it doesn't work. I keep getting a message like this" cannot find file pcoder22.s19" what's up with this, can someone tell me the right way of downloading ic to (...) (25 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| | Lo-Tech for Hi-Tech swaps, anyone?
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|
I plan to use the Handyboard within a Course on Interfacing, Microcontroller and Assembly Language Programming at undergraduate level here, starting next month. It turns out that there is a PCB production facility here in Zimbabwe which is now (...) (25 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| | (canceled)
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|
| |
| | hbtest.c
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Hi, I'm assembling a handyboard and am at the stage where the digital inputs are tested using the testdigitals() function of hbtest.c. The test partially works, and I get the beeps after pressing the start and stop buttons, but when I jumper the (...) (25 years ago, 28-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Problem with bootstrap mode
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|
Hi Raj - - Trickle charge the battery for awhile (with the HB turned off), then try it again. Good luck, - Nick - (...) (25 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Problem with bootstrap mode
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|
Hi I am having hard time in putting my handyboard in bootstrap mode. I didn't used my board in months , so it run out off power. when i tried to use it display is not working properly. The first line of the display is not working. when i swithed on (...) (25 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Analog I/O as Digital I/O
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|
Also, the "digital(int p)" extends to the analog ports too. When used with a port that is analog in hardware, it just uses 127 as a threshold value to return 1 or 0 (note below 127 returns true). See page 22 in the HB manual. However, with this (...) (25 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Analog I/O as Digital I/O
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|
(...) Since the analog inputs read voltage levels, you should be able to just plug in any switch or 5-0volt input directly. To read the values, use the analog command, and in theory you should only get two possible values, 255 for +5volts, and 0 for (...) (25 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| | Analog I/O as Digital I/O
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|
Can the analog input lines be used as a digital input lines (if there is no requirement of analog input)? Because, these lines are connected to the port E of 68hc11, then what are modifications required in the code? Asim Kar. City University of Hong (...) (25 years ago, 27-Sep-99, to lugnet.robotics.handyboard)
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| | Serial transmiter
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|
Does anyone know of a 9600(8,N,1) serial port transmitter? Or have plans for one? I need one for a telepresence robot that I am designing, Also it needs to be as high of power as it can be I am a HAM novice if it makes a difference Andrew Holland (...) (25 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Using 12V supply with Expansion Board?
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|
Duhhhh....don't forget to put heat sink on the 293 motor drivers or else you will fry it! Thank You Bart Chrijver for the reminding. Rob (25 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Using 12V supply with Expansion Board?
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|
At 12:13 AM 9/25/99 -0700, you wrote: I've look at the electrical schematic for both the Handy Board and Expansion and this is what I got. Because the expansion board only share the handy board's motor output for its Servo outputs, I don't think you (...) (25 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| |
| | [OT] HandyBoard batteries
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|
Hi All: Found: An excellent source for inexpensive HB batteries. They are new 2 AA (800mAh) cells in series for US$0.99 each. I bought 12 of them for $7.14 ... connected four of them in series and added a female connector ... added a male connector (...) (25 years ago, 25-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: error when loading *.icb file
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|
this is a known problem. see the FAQ: (URL) your message you said: (...) (25 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: error when loading *.icb file
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|
I had the same problem. When I run as11-ic on my MAC, I have no problem. When I do it on an IBM clone, I cannot load it into the Handy Board. I fixed it by hand-editing out the comment line (its in human language) in the generated .s19 file and it (...) (25 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| |
| | EXTENSION BOARD
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|
I every one, I have a problem, is it possible to have an extension board connected to the HB, and at the same time have a seperate motor power source? The reason I'm asking this is because that the "seperate motor power source" and "extension board" (...) (25 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| |
| | error when loading *.icb file
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|
Hi, I have downloaded the as11 assembler. When I assemble a *.asm file, a *.icb file was created. Then I whated to load the file in the HB but the message "Fatal internal error: Illegal line in .s19 file" was dispayed on the monitor. What's the (...) (25 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| | No objection
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|
Gary Livick wrote: <snip> (...) I don't mind that sort of solicitation. I think it's great that you're helping the Handy Board community by developing HB robotics accessories. I might end up being a customer when you get it up & running. Good luck (...) (25 years ago, 24-Sep-99, to lugnet.robotics.handyboard)
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| |
| | OptoIsolators
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|
Regarding the serial port isolator (opto-isolators are good for this) you might see if www.blackbox.com has something along those lines. You could also look up parts similar to the 4N33 to see if you could use something like that in a design. Not (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Using 12V supply with Exp Board (2nd posting)
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|
Hi all, This is a second posting of the question I posted up several days ago. So I apologize in advance for any inconvenience if you've already got my first posting. Anyways, I am currently using the 9.6V supply voltage on the HB and hoping to step (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Computer Serial Port Optoisolator
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|
This is somewhat off subject, but I am looking for a circuit schematic that will show how to build a serial port optoisolator for my computer. The problem I am having is that once in a while I wire a circuit wrong and end up putting 115V onto the (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: OVER 1 AMP
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|
Dear Paul, I have an H-bridge that I designed to run big motors. It runs at two amps continuous, and three amps intermittantly. It uses 5 volts for logic from your Handyboard, and 12 volts from a gel cell to run the motors. It also has an analog (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: OVER 1 AMP
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|
(...) www.yahoo.com, search for "H Bridge", trust me, lots of hits will comeup. Look for the 4QD pages, they talk a lot about H Bridge designs. If you aren't comfortable with electronic design, don't bother though... (...) This IS an H Bridge. Its a (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| | OVER 1 AMP
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|
Now, I recieved two good answers for my problems. 1) Built an H-Bridge 2) Use the LMD18200 Now has any one any documentation on an easy H bridge that I could build without wasting much time? The same goes for the LMD18200, I understand that is not (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| | Re: before I reinvent the wheel
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|
No, but I have used my HP48sx to control the Fascinating Electronics board as well as an NRD535 shortwave receiver. The serial I/O of the HP48 is limited to shield, ground, tx and rx pins so in both cases I had to wire special cables to jumper (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Source for IS1U60
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|
Hi Igor - - When you need to locate parts, try this link: (URL) found a couple of sources for the IS1U60 through them. - Nick - (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Source for IS1U60
|
|
(...) Addendum to my last post. For my money, I would get the LiteOn unit instead. Its less fragile (nifty metal can) and has the same pinout as the Sharp GP1U58Y units, and you can get them in a variety of frequencies at (URL) Part Number 160-1153, (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Source for IS1U60
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|
(...) (URL) carries them, but they currently say they have no stock, you'd have to find what their lead-time is. Also, a Canadian firm (URL) carries them, and they DO have them in stock. HVW's cost about US$1.00 more, but at least you can get them! (...) (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| | Source for IS1U60
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|
Hi! Can anybody point me to a mail order company who carries the Sharp IS1U60 infrared demodulator? Thanx...Igor (25 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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| |
| | Re: Good place to but miniboard?
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|
(...) First off, how much are you looking to pay? It can be built fairly cheaply if you are interested. Second, there is a mailing list for the miniboard. Check out Fred Martin's FTP site relating to the miniboard for the details. It's all in there. (...) (25 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | Good place to but miniboard?
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|
hi Was just wondering if you guys now of a cheap place to buy a miniboard(kit or assemebled) or if any of you are willing to part with one you have lyeing around the shop. Also is there a mailing list like this one for the Miniboard? Has any one (...) (25 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | Re: before I reinvent the wheel
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Doh! I should have said I was planning on using IR, but a serial cable makes more sense (at least to start with)... Thanks, Paul Adam Oliver wrote in message <001401bf04c9$2bdb67...c@adam>... I haven't actually done this, but I'm pretty sure the (...) (25 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | differential steering
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Hi, I what to built a four wheeled robot which uses differential steering. Have somebody an idea to transfer the motion energy from the motor powered back wheels to the front wheels? Jens (25 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | Re: before I reinvent the wheel
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before I reinvent the wheelI haven't actually done this, but I'm pretty sure the theory is ok... On the handyboard web page is the pa79600 icb file which lets you use port a bit 7 as serial i/o. I have successfully used this to control some (...) (25 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | before I reinvent the wheel
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Has anyone used their HP48 to talk to a handyboard? (25 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | Using 12V supply with Expansion Board?
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Hello 'Botter, I think I am about to ask a stupid question but as a precaution, will the Expansion board be "ok" with a new 12V motor supply rather than the 9.6V connected to the Power Expansion header (J13)on the HB since the Expansion board and HB (...) (25 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | (canceled)
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| | Re: Shaft encoder
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(...) The shaft encoder library routine available from the Handy Board web site works great for me. Just follow the links to Software, then Libraries, then Shaft encoders. Good luck! -- Will , , __@_/ \_@__ |/ | /__, o @_/ )\ ) ( \ (\/\\, ~~~...~~~ (...) (25 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | RE: OVER 1 AMP
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You can also stack a few of the original chips to make em work in parrallel. (...) (25 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | OVER 1 AMP
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Oh yeah, one more thing, how about connecting a 5 ohm resistor in series with a DC motor and there are 2 amps flowing, then the resistor is dissipating 20 watts of heat. Now I could have a higher value for the resistor, like 7, 10 ohms, I think that (...) (25 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | OVER 1 AMP
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Thanks everyone for your help, Now, I recieved two good answers for my problems. 1) Built an H-Bridge 2) Use the LMD18200 Now has any one any documentation on an easy H bridge that I could build without wasting much time? The same goes for the (...) (25 years ago, 21-Sep-99, to lugnet.robotics.handyboard)
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| | Shaft encoder
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To anybody, I have build a shaft encoder. Where can I get the software driver to evaluate the encoder data? Thanx, Jens (25 years ago, 22-Sep-99, to lugnet.robotics.handyboard)
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| | Re: OVER 1 AMP
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Do you know where the Caps Lock key is on your keyboard? Look for it, there is a little diode lighting up when it's on. If you see the little light, please do me a favor and before typing your email press the caps lock key once. GET IT? THANKS FOR (...) (25 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Re: OVER 1 AMP
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(...) Yes. (...) Built my own H-bridge. (...) No, they would burn up. (...) Yes, it would burn them up. It is much easier to build and H-bridge. (...) A simple common collector H-bridge made out of TIP120 and TIP125 power transistors will handle (...) (25 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Re: [OT] decoding the LEGO #9738 IR Remote Control
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Matt - - Downloaded Max Davies' files, ran them on my HandyBoard ... decoded the IR signal from both RCA and GE TV/VCR remotes with no problem, but with the LEGO remote it says "RC-5 NOT SUPPORTED". I guess that RC-5 is an IR encoding protocol ... (...) (25 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | OVER 1 AMP
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HAS ANY ONE USED MOTORS RATED OVER 1 AMP WITH THE HANDY BOARD? IF SO, HOW DID YOU GO ABOUT INTERFACING WITH THE HB? DID ANYONE USE THE L293 D/B, OR THE SNJ74 ? IS IT A BAD IDEA TO PIGGY-BACK MORE THAN TWO OF THESE CHIPS IN PARALLEL, SAY 3 OR 4? THIS (...) (25 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Purchase 6811s
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BG Micro has 'em. go to www.bgmicro.com, click on "Shop Online," and search for "68HC11". fred In your message you said: (...) (25 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | Purchase 6811s
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Anyone know where I can purchase some MC68HC11A1FNs. A Motorola web-site or something. - Thanks (25 years ago, 20-Sep-99, to lugnet.robotics.handyboard)
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| | [OT] decoding the LEGO #9738 IR Remote Control
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Hello All: This LEGO IR remote control (#9738) is making me crazy!!!! For those of you who haven't been reading this thread, what I want to do is the following: The LEGO IR remote control is GREAT for use with 'bots using the LEGO RCX for brains. (...) (25 years ago, 19-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Is there a device that...?
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I'll vouch for the efficacy of the Fascinating Electronics board. I got one years ago after reading the series in Electronics Now/Radio-Electronics using it as a weather monitor. It works fine connected to an HP48 calculator for control of I/O as (...) (25 years ago, 19-Sep-99, to lugnet.robotics.handyboard)
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| | noice
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Hi everybody, I'm a novice in the field of microcontrollers, and I'm trying to use the handyboard with ICC11V5 and NoICEV2.5.2. The compiler gave me no problem (thanks to a search on this list archive!) but I can't get NoICE to work. Has anybody on (...) (25 years ago, 17-Sep-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard and Jini
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(...) Since the HB does not support Java/RMI/TCP etc it's not likely that you'll see Jini on the HB any time soon. However, it would be fairly straightforward to create Jini proxies on a host computer that act on behalf on the HB functions. I plan (...) (25 years ago, 16-Sep-99, to lugnet.robotics.handyboard)
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