 | | Line follower kit
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I was wondering if anybody had used the Line follower kit from the robotstore? Is it pretty much plug and play (besides a little programming) for the handyboard? Thanks. Dave (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
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| | Re: DC motor voltage source
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Philip: I depends on how many motor driver ports you want to have on the new voltage. If you have just two motors, then lifting (and wirewrapping) pin 8 for one chip whould be enough. The motor outputs affected are nearest to the chip modified. I (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Voltage for the DC motor
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Ja, I could not tell you for the life of me what 'type' f a HB it is, but I remember someone once telling me that you could just remove one of the pins from the driver chip instead. This method would be less final (ie, just bend the lead up and if (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
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| | Re: programming help.
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The "<<" is a shift left operator in C 0E is the actual motor port on the Handy Board. (...) mean? (...) between 4 and 7. (...) peek(address) | value). I don't have any documentation here, so I don't know what is stored in 0x0e, but it could be the (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Bend/ Flex Sensor
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I think its cheaper to get an old Nintendo power glove and Hack it! (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
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| | Re: IR Detection
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Hi Most of the IR LED's sold at Radio Shack are the 840-880 nm wavelenght type. The Sharp tin can requires the 940 nm wavelength IR beam if my memory serves me right, it also requires to be modulated at 38 or 40 kHz depending on the model. This 38 (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
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| | as11_ic
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(...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Voltage for the DC motor
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(...) Sorry, I cannot help you. My board look exactly like the one on the picture. It's a Handy Board v.1.2 I bought assembled from Glasson Research. Does somebody knows what board Phillip is using? -- Eric (26 years ago, 1-Nov-98, to lugnet.robotics.handyboard)
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| | code segment
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Hi all, I have writen a code, when i download it i received following message. "c:\ic\libs\speed.icb(1): Code and data segments collide -- overflow of 681 bytes" After that I reduced the size of code and downloaded it, It was successfull. I got (...) (26 years ago, 1-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Mailing List
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I used to work at AOL technical support, I would be very much interested if you could figure out how to use AOL as a POP3, AOL is NOT a POP3 server. AOL is very proprietery, one of the many reasons (and doesn't support DUN - dial-up networking) that (...) (26 years ago, 1-Nov-98, to lugnet.robotics.handyboard)
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| | programming help.
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hello can someone please tell me what does the following command line mean? bit_set(0x0e, 1 << (4 + motor)); i know that 0x0e refers to memory location $0E but how does bit_set work? is it similar to poke? and more importantly, what operation does (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Implementation question
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Hi Ronald! Ok - my HB is working now. I got the right 1233-10 (10 means 10% of 5v - reset is going up on 4.5v). This seem to work better. Second thing is the 350ms delay seem to be necessary in normal reset. The second thing was that the power (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Voltage for the DC motor
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hi, I noticed that the picture of the HB in the Web page is slight different from mine. There is no thick trace on my HB to be cut. However, the HB in the web page has a thick trace on it ? My version of the board is 1995, Fred Martin. Please help. (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
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| | Re: programming help.
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(...) In binary 1 is represented by 0000-0001 1 << 1 is 0000-0010 aka 2 1 << 2 is 0000-0100 aka 4 1 << 3 is 0000-1000 aka 8 You get the idea? x << y means slide x to the left y times. motor is probably a number between 0 and 3. 4+motor is then a (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
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| | Bend/ Flex Sensor
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Someone had inquired about Bend/ Flex sensors... There's one in the new JAMECO catalog: Flex Sensor Part No. 150551 for $10.95 (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar Sensor Problems
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Thanks for doing all this testing and reporting it to us. I do really appreciate it. And I'll vote for the low tech version: use two diodes... -- Eric (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar Sensor Problems
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(...) The dual sonar interface board is simply a small (1.5" sq. or so) experimenter's PC board from Ripoff Shack with the six power diodes, the one resistor, and three header plugs soldered onto it. One plug goes to the HB and the other two go to (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: DC motor voltage source
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phillip: Pine 8 for the L293D is "Motor Power." There are two ways to get to this. 1) Pull the chip from the socket, lift the pin so it points straight up, then wire-wrap a new supply wire to this pin. Or scratch the trace leading to pin 8 U11 and (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | HB Pcode v3.2 Source... (Was: Motor output)
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-----Original Message----- From: Eric Noyau <noyau@apple.com> To: William Bain <willbain@cs.umt.edu> Cc: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: Thursday, October 29, 1998 8:39 PM Subject: Re: Motor output (...) <snip> (...) not (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | debug help
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I just finished adding the motor output circuit to my HB. I have built and tested the interface board. I connected the interface board to the HB to download the test code to test the HB and I keep getting the "wrong port or board mode" error. Not (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Other LCDs
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(...) I just did this. First you need the source code for IC, the compiler, and apparently Unix since the source code requires some pre-processing and the script to do that works under Unix (which I don't have). An alternative method requires the (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: IR Detection
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Transmission and reception of IR data is quite different from using IR just to bounce it off obstacles to detect their presence. To exchange data with IR you will almost certainly have to use interrupt driven assembler code which can be very (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: IR Detection
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(...) Hi Will: What you say might be the reason for my problem hence I bought a matched IR emitter and detector pair from Radio Shack and tried the same thing. Here again, the emitter is sending the signal but the detector is not able to see it. I (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Motor output
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(...) Well, I'm cheap ;^) I'm using the free version. I might be lured into buying the commercial version: I'd sure love to have structs and multidimensional vectors. I think I will miss function pointers... Is there any source coming with the (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: IR Detection
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(...) The Sharp IR detector is designed to respond only to modulated IR signals. The card from Radio Shack will indicate whether the LED is illuminated, but it won't tell you whether it's modulated at the proper frequency. Perhaps that could be the (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Motor output
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On Wed, 28 Oct 1998, Eric Noyau wrote: <snip> (...) way into the supported release of the pcode and libraries? This is a real improvement over the standard one... I believe that IC version 3.2 includes the PWM stuff already. --Will (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
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| | Smooth PWM in C
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L.S. I wonder if anybody has got the smooth pwm routines in C? This would help me a lot understanding this particular bit and adapting it to my own needs... Thanks, Jaron Paludanus (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Voltage for the DC motor
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from the FAQ: Using a Separate Motor Power Source: (URL) Eric (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | IRDA and Handyboard?
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Hi all, Electronics Goldmine has some notebook pc IRDA ports for $2! (URL) I think it would be Great to use a couple of these to get 2 Handyboards to talk with eachother. Or, get one handyboard to talk with my Notebook PC (which already has an IRDA (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | Config Register error
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When I download the pcode file using either HBDL or DL the pcode itself is loaded successfully but I then get an error from both programs saying the config register is set to 0xFF. I retried several times but the config register always reads 0xFF. I (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | IR Detection
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Hi Everyone: I am trying out the infra red emission and detection with the Handy Board. I have succeeded in the emission part but the detection circuit is not working. I know that the emitter LED is fine , with the help of Radio Shack Infrared (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Other LCDs
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Drew I picked up a 20x4 LCD from B. G. Micro (see their on-line catalog at (URL) and view page 2 - the LCD is the one in the upper right at $8.95, part number LCD1002). For 2x16, it will work just plugging into the HB. I poked memory locations (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
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| | HB woes
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I'd appreciate mucho any help and ideas you all have I am building my HB, finally got the caps and crystal osc. working, and ran the HBDL program to download. All good and fine. I go off and solder in the transparent latch, and while doing so I (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Motor output
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(...) The motor controls in the Handy Board library supports only 8 levels of power. Upgrade! Get the Smooth PWM version made by Julian Skidmore in the software contributed page on the Handy board web site ((URL) will have to do multiple things: 1- (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Motor output
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Hi! When I work with the motor outputs, I found that the outputs are not linear. The "motor(m,p)" changes the output only in an increment 10 of p. Is there anyway I can get a more presiced output? Thanks. Keith (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Implementation question
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Hi All! I'm having exactly the same problem! The download seem to work correctly but after switching off and on the board again it seem not to start over. I have momentarily used another reset device. I dont know exactly the specification but it (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Voltage for the DC motor
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HI, Currently, I'm using 2 dc motors to drive my robot. The voltage of the motor is 12v rated. and the rated current is 300mA. These motors are directly plug into the HD for use. As a result, the robot cannot travelled fast and sometimes halt (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar Sensor Problems
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michael lang kee wrote: <snip> (...) An occasional sporadic reading is normal and can best be handled by returning the median of three readings. Very noisy sonar data like yours might be attributable to noisy power to the board, a weak connection, (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Other LCDs
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Can someone point me in the direction of using a 20 x 4 LCD. I saw a reference on the HB website about recompiling the IC source with a command line switch specifying the LCD dimensions. What do need to recompile, only the P_code.s19 file?? How do I (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Picking a PIC
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In a message dated 98-10-27 13:58:13 EST, ben@wirz.com writes: << Hi Fred, Good to hear from you, feel free to post this to the list. I feel that the flash parts are easier to use because you don't need to wait for the UV eraser to do its things (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Handy board questions (fwd)
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---...--- Michael Kee - mlkee@unm.edu - ___...___ ---...--- Forwarded message ---...--- Date: Tue, 27 Oct 1998 19:40:38 -0700 (MST) From: michael lang kee <mlkee@unm.edu> To: Fred G Martin <fredm@media.mit.edu> Cc: mlkee@unm.edu Subject: Handy board (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Sonar Sensor Problems (fwd)
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oooo$$$...$$$oooo oo$$$...$$$o oo$$$...$$$o o$ $$ o$ o $ oo o$$$...$$$o $$ $$ $$o$ oo $ $ "$ o$$$...$$$ $$$...$$$ $$$...$$$o $$$o$$o$ "$$$$$$o$ o$$$...$$$ $$$...$$$ $$$...$$$o $$$$$$$$ $$$$$$$ $$$...$$$ $$$...$$$ $$$...$$$ $$$...$$$ $$$...$$$ (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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(...) <snip> There was a guy on the HB list a few months back offering to sell bend sensors for a reasonable price. I figured that if he's into robotics, then he's probably one of the good guys. I took a chance and sent him a few bucks, but I (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: C compiler
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Joe, Your question implies that Interactive C does not compile to byte code, so I thought I should take some time to post an explanation of how IC works. Actually, Interactive C does compile, and in fact does compile to byte code, which is then (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | 68HC11A1 vs 68HC11E1
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Hi Folks, I'm not actually subscribed to the Handyboard list as Fred is traveling an unable to add me to the list. But I was hoping someone could take a moment to clear up my confusion on why the documentation occasionally refers to the E1, while (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: My first servo try! Cool! (C Question)
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(...) easy way: for (angle=1; angle<10; angle++) servo_deg((float)angle) better way: modify functions from servo.c to accept integers: int servo_deg_int(int)angle) { return servo(degree_to_pulse(angle)); } int degree_to_pulse_int((int)angle) { int (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Picking a PIC
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Clem: In a message dated 98-10-26 23:31:56 EST, you write: << I'm looking to offload the processing of IR proximity sensors and ultrasound to a PIC(s). I'm hoping to connect the PIC to a HandyBoard via the SPI. << I'm trying to decide which is the (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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This is correct, although the bend sensors aren't all that great. I've got the glove and the accuracy isn't very much, about the best you can expect is what they've got from the glove , ie 4 different bend positions. But if this is enough for your (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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If you get your hands on a Nintendo power glove you'll find some in the fingers of the glove. That's what I've been told! -----Original Message----- From: Eric Noyau <noyau@apple.com> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Stepper Motor.
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You can also check out this homepage: (URL) describes how to connect stepper motors to the handy board along with programming examples. I hope that helps! -----Original Message----- From: Keith - Lui <luikeith@egr.msu.edu> To: (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Picking a PIC
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I'm looking to offload the processing of IR proximity sensors and ultrasound to a PIC(s). I'm hoping to connect the PIC to a HandyBoard via the SPI. I'm trying to decide which is the right PIC for the job. The PIC16C7x (PIC16C76) series supports (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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If you go look at the imagesco page the sensor is the Part number FLX-01 and they are priced at $10.00 each. This is where I got my $10 quote ;^( I guess there was a 50% raise in the price since Fred Martin updated the FAQ... Thanks anyway. -- Eric (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source for bend sensor?
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(...) they look fairly interesting to implement bumpers or to use in wall following activities but I can't find them anywhere. (...) (URL) On this page Fred gives the addresses of many Robot Matériel Suppliers (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Line follower
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Hi, I'd like to use the line follower C routines included with the handyboard software. What type of sensors do I need, where can I find them, and are there schematics for connecting them to the handyboard? Also, I would like my handyboard to (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | questions
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Hi all, Could someone tell me how the "IR_signal" function works, please? What parameters must I pass to it? Thank you -- John A. Atkinson-Abutridy EMAIL: atkinson@inf.udec.cl Profesor Asistente Dept. de Ingenieria Informatica URL: (URL) de (...) (26 years ago, 27-Oct-98, to lugnet.robotics.handyboard)
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| | Re: C compiler
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(...) Welll...lll.. I wouldn't *recommend* it persay, however, the 6811 port of the GCC compiler is free. It works, I am running a program I compiled with it right now in a terminal window. At work, we use the Cosmic C compiler for our 6811 based (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Source for bend sensor?
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Hi all, I'm looking for these bend sensors described in the "Mobile Robots" book, they look fairly interesting to implement bumpers or to use in wall following activities but I can't find them anywhere. According to the book p.117 "bend sensors are (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | C compiler
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Is there any C compilers that people can recomend, I am looking for a cross compiler (compiles to byte code) as opposed to interpreted (IC). Oh, I use a PC runing windows/dos Thanks, Joe Hoffmann E-Mail jhoffman@it.sait.ab.ca (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Re: My first servo try! Cool! (C Question)
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On Mon, 26 Oct 1998 GDFRITZ@aol.com wrote: ... (...) ... The servos which I've been using can run at two different power levels... I think they are 7.5 and 5 volts. I found that if I powered the servo directly off the battery (stupid, yes), the (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | IR Landmarks
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Greetings! Does any one know of some device that could be used to continuously transmit a certain IR code. What I am trying to do is to have an HB based robot try out some navigational tasks, based on what it senses as well as have an internal (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | My first servo try! Cool! (C Question)
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Hi all, I'm still amazed with this Handyboard! I had some free time to play this weekend and hooked up a Servo motor for the first time. It was a small futaba that I got from B&G or Electronics Goldmine (I can't remember which). Anyway, I have a few (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | IR Transmission and Reception
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Hi All: I am new to the handyboard list as I just got my handyboard. I am trying to implement obstacle detection using the IR sensors. my question is that, if I want to have more than one ir emitter LED, ( to find out the direction of the obstacle) (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Other Parts...
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I was wondering if it's ok to use another voltage monitor such as Zetex's ZM33064C (5vcc, 4.6v thresh, sinks 60mA) in place of the Dallas DS1233? Also, is it possible to modify the LCD routines to work with displays other than 2x16. Specifically I (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Stepper motor!!
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Hallo all. Why don't you us stepper motor driver IC. for example SAA1027 Philips (uni- polar) or ucn-5804B Allegro Microsystems (uni-polar) or L297 SGS-Thomsom (uni and bi-polar) This will take care of some problems and your handyboard alive!! for (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Generic Battery Question:
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Howdy folks- I've got a quick question for anyone out there have any experience with power distribution systems using multiple batteries... If I have say six [more or less identical] batteries... am I better off to run them all at once (in whatever (...) (26 years ago, 26-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Stepper Motor.
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Keith, At first blush I would suggest the following connections: Motor Out 0 1 - stepper phase #1 Motor Out 1 2- '' '' #2 Motor Out 2 3- '' '' #3 Motor Out 3 4 - '' '' #4 Ground 5 - stepper common #1,3 Ground 6 - stepper common #2,4 Your program (...) (26 years ago, 25-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar question
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Hi, acroname has the sonar modules for $45.00. www.acroname.com ---...--- (...) to check how it was "recommended" to do it with the Polaroid OEM kit (It's at (URL) this seems pretty straightforward to do but I'd like to use 2 sonars, not just one, (...) (26 years ago, 25-Oct-98, to lugnet.robotics.handyboard)
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| | Stepper Motor.
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I would like to have my HB controlling a stepper motor. It's a 4-phase unipolar permanent magnet motor. The names of the inputs are like this: 1 - stepper phase #1 2- '' '' #2 3- '' '' #3 4 - '' '' #4 5 - stepper common #1,3 6 - stepper common #2,4 (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sonar question
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Eric Noyau wrote: <snip> (...) <snip> (...) <snip> (...) <snip> I asked about this a few months back, and Fred Martin himself suggested I might try the very same connection scheme that you mention. Here's what he suggested: <snip> (...) According to (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Implementation question
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I am busy building the HB but I cannot get it to work yet. Here are the symptoms. The serial board works as expected and performs all tests as described in the implementation manual. RAM and HC11 are installed as well as the LCD. I am using the (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Sonar question
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Hi all, I'd like to install sonar capabilities in my robot and I went to the FAQ to check how it was "recommended" to do it with the Polaroid OEM kit (It's at (URL) this seems pretty straightforward to do but I'd like to use 2 sonars, not just one, (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source of 754410 driver
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I think that Newark sells them for about $4.15 each. (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Dead HB
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(...) I´m using that nvrmas on HB and work excellent. You simply put the memory and disconnect the external battery! German Gentile (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source of 754410 driver
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Acroname (www.acroname.com) sells these chips for $5 each or a 3-pack for $12. (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Dead HB
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I tend to agree. Most people think that if the display is dead, the system is dead. The fact that you can download the program is a good sign. I think, you then need to prove that it was downloaded using simple known commands to establish that it is (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Communication to the board.
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Hi, I need to make a logic programm (eclipse or prolog) control the h-board-robot. Does anybody have any experience with something like that? I come from the AI and logic programming, and I don't have much experience with communication protocols for (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | how to unsubscribe
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hi everyone, *please* don't send unsubscribe requests to the list. send them to me, fredm@media.mit.edu. thanks a lot. fred (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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unsubscribe (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Bootstrap mode
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hi all, i have trouble with my handy-board. Few days ago it works proberly, now i doesn´t go into the bootstrap modus. Both leds (red+green) lights and i can´t download the pcode. I tested the board with and without the serial interface. But it (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Question
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Dear HB members: 1.- Is there any software for controlling two or more IR sensors??? 2.- Could you tell me how does the "IR_signal" works?? Thank you -- John A. Atkinson-Abutridy EMAIL: atkinson@inf.udec.cl Profesor Asistente Dept. de Ingenieria (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Source of 754410 driver
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Newark has the TI SN754410NE chips. (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | A/D converter
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Thank you for the "Hint" Kevin Smith , Assistant Professor at Brigham Young University. I can read the Analog to Digital converter now. I increased the delay on the power up initialization. Hector Noriega Graduate Student Electrical Engineering (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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unsubscribe (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Re: inquiry
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probably -- i don't know if there are driver conflicts. you probably have to use the version of the pcode that doesn't hang if it doesn't find an LCD. fred In your message you said: (...) (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | inquiry
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Dr. Martin, I am planning to build another robot with TCOMP on it, specifically the TCOMP 3.5, can I still use IC for this board? You can find TCOMP address here: (URL) in advance. joema (26 years ago, 23-Oct-98, to lugnet.robotics.handyboard)
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| | Source of 754410 driver
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Hello, all: I saw in the FAQ that TI has an "upgrade" to the L293 motor driver chip. What is the best source for this part? Thanks! Rich Cini/WUGNET - ClubWin!/CW7 - MCP Windows 95/Windows Networking - Collector of "classic" computers <===...=== (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Sensor connections
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i think you may be using the wrong drivers. make sure to set your version of IC to load "lib_hb.lis" when it boots up. fred In your message you said: (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Getting started with the project
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Respected Sir, I have installed the newer version of IC into my PC. My Handyboard is ready with all parts assembled. Earlier I have done a project called "Mobile Robot Navigation of a Maze" with this handyboard. In this the robot navigates the maze (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Sensor connections [DAT]
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I can not get the sensors to respond correctly, for instance if I do analog(0) the value of the sensor marked 7 on the hb is returned. After going through all the sensors here is the layout I came up with: I never got a reading on port 0,1,9 or 10 (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Dead HB
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Sounds like a lot of it is still up and running if you can download. I'd suggest going through the assembly instructions and performing the tests at the end of each section. You should, thereby, be able to isolate smaller areas that may be fried and (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Read A/D converter
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I didn't look that closely at your program but I have included a routine to read the analog ports that I know works. After assembling and loading the program, you make two c function calls: powerup_ad(); and read_ad(i); where i is the analog port (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: No stepper motor info in FAQ?
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(...) HB? (...) Allegro Systems UCN5804B is $3 and change from Newark Electronics. That's not so many $s. It can drive steppers up to 1.25A. The interfacing is easy, datasheet available on-line. Hope this helps, Art (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: data capture
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Justin, I didn't see anyone reply to your RS232 Question. ALthough I am a newbie to the Handyboard, I have been doing RS232 programming off and on for years. My conclusion is that there have been MANY null modem configurations...but, they seem to be (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Expansion Board availability?
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Ok, I found the link to the Expansion board info website...it's all about a beta version. But, there appears to be enough information there for me to build one myself. (is that what everyone's done?) I have never built something from scratch like (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | No stepper motor info in FAQ?
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Hi all, I just finished searching the FAQ for stepper motor driving tips and found none. :( Anyone know what the most efficient way to connect a stepper motor to the HB? I know that they have these $8ish driver chips...but I've never used one. If (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Dead HB
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Well maybe you should try replacing the HC11 for a start.. These things tend to spoil easily and for no apparent reason.... :( (or is it just bad luck?) That's funny, you shorted out something and it still can download? Maybe you should also change (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Dead HB
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Hi All, While I was building my sumo robot I managed to short a wire in my HB. I put a wire that was connected to a multimeter and also connected to another part of the robot, into a digital sensor input, sparks came out and it smelt like burnt (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Read A/D converter
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"HI" , I am trying to read the A/D converter but the program gets "Hung-Up" on the line "ANALOOP", the CCF bit never sets. Please give me a hint. Here is the Assembly code. /* MAGLEV.ASM, Magnetic Levitation by Hector Noriega, 28JUNE1998.*/ /*Handy (...) (26 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Basic Sensor Question
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if a sensor connector row looks like this -- [ ][ ][ ][ ][ ][ ][ ] [ ][ ][ ][ ][ ][ ][ ] [ ][ ][ ][ ][ ][ ][ ] 6 5 4 3 2 1 0 then to connect to sensor 0, you plug the switch into the places marked "[X]": [ ][ ][ ][ ][ ][ ][X] [ ][ ][ ][ ][ ][ ][ ] [ (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Basic Sensor Question
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You were right, also it seems my board is wired incorrectly analog(0) controls the connector marked 7 on the hb. Thanks for your help! Julian -----Original Message----- From: Scott R. Harris <srharris@phoenix.Pr...ceton.EDU> To: Julian Porter (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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