 | | 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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