 | | RE: You know, I just had a wacky thought...
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It is not completely wacky, but there are issues. For example most audio amplifiers aren't rated for DC operation (that having their output stay at one level permanently) You can fix this by rectifying the output of the amplifier and providing a DC (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Need big favor
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(...) If you need motor control of 6A average and 12A peak, check out Ben Wirz's homepage, he sells a unit using two bridged LM18200's, a great chip. (URL) today is a race between software engineers striving to build bigger and better idiot-proof (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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| | FTP error
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Is there something wrong with the FTP server. I can't connect to it. (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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| | Re: HB Downloader Trouble
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Well, I got my HB working. I brought it over to a friends house where he was able to program it using his machine with little trouble. So, obviously it was not the HB per se. I brought it back home, and had trouble downloading from IC 3.1b but was (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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| | Need big favor
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Could somebody who has the tyco 'Fast Traxx' vehicle please tell me what the numbers are printed on the sides of the long 15 pin black chip and the two green power transistor looking chips? Basically all the chips bolted to the aluminum heat sink. (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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| | Re: IR wall detection
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(...) Could you tell me the cost & range for these? (...) Could you trigger them in an interleave-like sequence? Seems that would reduce interference to just about zero. If you number 1-2-3 starting at zero degrees and going clockwise, you could set (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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| | IR wall detection
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I have recenty perfected a simple sensor using the Sharp IR detector but I need some help in interfacing it. I plan on having about 16 sensors all around the perimiter of the robot but I don't want to have them running all at the same time because (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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| | Re: HB Downloader Trouble
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Success on the first bootstrap download and failure to write into RAM could easily be explained by a fault in the memory circuit. The memory circuit, which includes the 'hc373, the 'hc132, and the RAM chip itself, with about 27 signals going to the (...) (28 years ago, 13-Jan-97, to lugnet.robotics.handyboard)
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| | Re: HB Downloader Trouble
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(...) I too have this problem. I originally thought it was the RS232 converted, but I have since replaced this part and still get the downloading error (using HBDL and DLM). I can't find any physical defects with the board (solder bridges, cold (...) (28 years ago, 13-Jan-97, to lugnet.robotics.handyboard)
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| | Address marking on th SCI
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I'd like to address two devices (one a handyboard) over the same serial line. I can use the address mark wake up method described int the pink book. Is this compatable with IC, or do I need to write my interface in assembly? -Jodi Graf (28 years ago, 13-Jan-97, to lugnet.robotics.handyboard)
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| | Interactive C
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hola, What are the main differences between IC Ver 2.81 and IC Ver 3.1? I know that you have to purchase 3.1, but 2.81 is freely distributed. What features does 3.1 have that 2.81 doesn't??? thanx, James Montgomery MIT '98 jmm@mit.edu (28 years ago, 13-Jan-97, to lugnet.robotics.handyboard)
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| | reading analog port in asm
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Hello, I need to write to a digital port and read from an analog port. This has to be done in assembly (to make it fast). I tried but I cannot make this work. I am sure this has been programmed befor, so can somebody help me out and send me the (...) (28 years ago, 13-Jan-97, to lugnet.robotics.handyboard)
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| | Mobile Robotics book
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That Mobile Robotics book is also available from amazon.com books... Go to their web page, and search for books by Anita Flynn. It's about $40. (Expensive!!) ---...--- Jeff Keyzer jkeyzer@ucsd.edu UCSD Aerial Robotics Team (URL) (28 years ago, 12-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Poloroid interface
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(...) I don't have the schematics with me. If I remember right (James correct me if I am wrong!) we are talking two different inputs. The 5V INIT is just the trigger signal from Handyboard, but the 5Vdc POWER for the transmitter components comes on (...) (28 years ago, 12-Jan-97, to lugnet.robotics.handyboard)
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| | NiMH batteries
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Has anyone tried to use NiMH batteries with the HB? Are they good enough for motors? Do they have the "memory effect" like NiCd's? (28 years ago, 12-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Poloroid interface
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(...) I'm currious. How would one go about connecting the "external" battery to the Ranger. For a 5V "high" to be seen by the INIT input, you would have to have a closed loop, right? (28 years ago, 12-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Poloroid interface
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(...) I found a number of good files here. We do need to sort them out though. We had a mish-mash of either incompletes or code for other boards. It looks like we'll be able to get it sorted out. By the way, we kept thinking IR sensors were cheapo, (...) (28 years ago, 12-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Mobile Robotics Book
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In a message dated 97-01-11 17:55:48 EST, mar@cooper.edu (MAR ERICSON) writes: << Authors are : Joeseph L. Jones and Anita M. Flynn Publisher: AK Peters >> ISBN 1-56881-011-3 Got this off the back of the book. It is great. Jim (28 years ago, 12-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Handy Board v1.2
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Douglas Electronics. Look then up in the internet. :) (...) (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Mobile Robotics Book
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Authors are : Joeseph L. Jones and Anita M. Flynn Publisher: AK Peters Look up AK peters on the web. I think it's www.akpeters.com (not sure) .Do a search. Barns and Nobels carry it in some branches. You can aloso order it form AK Peters. (...) (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Poloroid interface
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You can interface the Ranger to the HB directly without any problem. Look at the software contributions on the HB home Page undre ther directory of 'kent'. Here you will find the IC aND assembler programs that will allow you to do this. You will (...) (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Poloroid interface
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I'm forwarding this to our team member that has most of the documentation at the moment. We tested our Polaroids with an O-scope, we have some code we found that has handyboard send out and receive a ping, and a lot of the available HB docs. So we (...) (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | Handy Board v1.2
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Where I can buy the printed circuit board to make a HB v1.2 ? Thanx in advance! +---...---+ | David Gironella & Family | | Send your e-mail to | | giro@grn.es | +---...---+ (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | pink book
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Hi everyone, I want to know exactly what the "pink book" is, plus where and how to order it. Thanks. (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | source of Sharp IR detectors
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I am looking to buy from 10 to 15 Sharp IR detector modules and I need to find a CHEAP supplier. Any suggestions? Keith Soldavin kas219@email.psu.edu (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | Poloroid interface
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What is the easyest way to interface a Poloroid ranging board to the handyboard? I know that the expansion board is supposed to have this feature built right in but I can't wait to get it. I also want to know if there are any software drivers (...) (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | Digital outputs
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I need to create digital outputs and expand the number of digital inputs on my handyboard. I know that if you take the data lines and latch them using one of the outputs from the '138 you can accomplish this but I would like to see a schematic (...) (28 years ago, 11-Jan-97, to lugnet.robotics.handyboard)
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| | HB Downloader Trouble
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I finally got all my parts to finish my HB. I am working at the bottom of page 31 in the Assembling the Handy Board download dated April 1996. I am having great difficulty downloading my board. Here are the messages I am getting when I attempt to (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pink book
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I don't have the exacct address with me since I am at home for break, but the last time that I visited the 6811 page on motorolla's site, they have the pink book available free in PDF format. I got the book while it was free, but when I go home, it (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pink book
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See the Handy Board Technical Documents page, linked off of the main page. It's the MC68hc11 reference manual. It's no longer free, but it's really inexpensive (like $2.50 per copy). This is a 200+ page book, extensive, in depth, and well written. (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pink book
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(...) From the back cover, hook up to (URL) or dial 602 244 6609 w/touchtone phone. Ask for M68HC11RM/AD (mine's rev 3). That's the main manual for the 68HC11 series. A smaller book on the E variant, M68HC11E/D, which covers the E specific options, (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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| | Mobile Robotics Book
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Where can I obtain the book Mobile RObotics that is mentioned so much on the HB mailing list. Anyone got the publisher and the ISBN # ? Thanks Bill Rose Fort Smith, AR (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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| | Handyboard IR Sensor question.
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Thanks for your last response. Today we wrote and tested: Run motor 1 forward at half speed. Monitor the microswitch at digital port 7. If the switch closes (Hit the wall!) then Stop the motor BEEP Run motor 1 backwards full speed for 1 second. Shut (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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| | RE: Interfacing HB to PIC
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(...) Well, remember the code I have is in SBasic, not Interactive C. However, it's not all that long so here it is. -mike ' sigproc.bas - written 12/96 for 68HC11E1 processor (Tcomp) ' ' pulls in 4 RC signals on the 4 IC interrupts, massages them (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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| | RE: Interfacing HB to PIC
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(...) Well, in that case, the SPI port is what you want, provided an SPI port is also available on the PIC. Then just set up the SPI config, load the register and the computers exchange 16 bits shifted on a clock generated automatically by the (...) (28 years ago, 9-Jan-97, to lugnet.robotics.handyboard)
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| | RE: Interfacing HB to PIC
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I really didn't have anything in mind other than the solution. How could you use the SPI port to communicate with the PIC? (...) (28 years ago, 9-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Interfacing HB to PIC
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(...) Are you referring to using the SPI port on the Handyboard, or simulating the SPI function via other ports? If you run the handyboard as a master, then the handyboard is responsible for providing the clock output used to capture the data by the (...) (28 years ago, 9-Jan-97, to lugnet.robotics.handyboard)
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| | Interfacing HB to PIC
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Has anyone interfaced the HB to a PIC chip or other microcontroller without using the primary serial lines? I am wondering if maybe there was an I2C or SPI implementation done somewhere using digital outs. (28 years ago, 9-Jan-97, to lugnet.robotics.handyboard)
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| | (Reply to Mr. Ericson)
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Mar, I responded last night to your personal address and to be quite honest, I'm not sure if I sent it to the right address..so let me say again, in response to your question about what kind of IR sensors my design group and I plan on using--we (...) (28 years ago, 8-Jan-97, to lugnet.robotics.handyboard)
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| | HB learning time
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Hello, I am a beginner in Robotics and have looked at the Handy Board, Miniboard, BotBoard, and Basic stamps. I have decided I think I like the HB. The only thing is I want to make a mobile robot or arm that has basic AI, maybe using Subsumption. I (...) (28 years ago, 8-Jan-97, to lugnet.robotics.handyboard)
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| | (# of sensors)
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Can anyone tell me if it's possible to run more than one servo off the Handy Board? My design group and I are building a robot that will perform an autonomous search routine. We're in the rough developement stage and really trying to pin down just (...) (28 years ago, 7-Jan-97, to lugnet.robotics.handyboard)
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| | Re: I think I fried my board!!
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keith-- you might have fried the motor ground to logic ground connection. a couple of times in my lab using 6.270 boards people shorted motor high to logic ground, with the result being a vaporized trace between the two grounds (the inductor was not (...) (28 years ago, 7-Jan-97, to lugnet.robotics.handyboard)
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| | Re: I think I fried my board!!
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Yes it is probably the inductor. It acts as a fuse in many situations. You are lucky -- it could have been much worse. -Fred In your message you said: (...) (28 years ago, 7-Jan-97, to lugnet.robotics.handyboard)
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| | HB - fast sensor reading
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Hello, I have a clock signal of 5 kHz and an analog signal. (There are in total 128 clock pulses) I need to read in the analog signal every time the clock signal is high. So I need to read the clock signal with at least 10 kHz. I tried this with IC, (...) (28 years ago, 7-Jan-97, to lugnet.robotics.handyboard)
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| | Re: I think I fried my board!!
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Keith, We'd be happy to send you a new inductor to try out. Let us know how it works out. Best of luck! (...) - Prabal (28 years ago, 7-Jan-97, to lugnet.robotics.handyboard)
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| | I think I fried my board!!
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I need help figuring out what I did to my handyboard. I had it all assembled, tested, and working when one of the battery leads touched one of the solder spots on the board. A small puff of smoke rose from the board but I was able to disconnect the (...) (28 years ago, 7-Jan-97, to lugnet.robotics.handyboard)
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| | HB - fast sensor reading
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Hello, I have a clock signal of 5 kHz and an analog signal. (There are in total 128 clock pulses) I need to read in the analog signal every time the clock signal is high. So I need to read the clock signal with at least 10 kHz. I tried this with IC, (...) (28 years ago, 6-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Rayovac Renewal batteries
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Renewals are pretty cool -- they are "true" alkaline in the sense that they have the same voltage, discharge curve, and shelf life. The only bugaboo with them -- and it's a big one -- is that each *cell* must be individually charged. so you can't (...) (28 years ago, 5-Jan-97, to lugnet.robotics.handyboard)
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| | Rayovac Renewal batteries
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Hi, I was wondering if anyone has any info on the Rayovac Renewal batteries. According to the packaging, they're rechargable alkaline batteries. Sinch alkaline lasts longer that NiCd batteries, I was wondering if it would be good to use these (...) (28 years ago, 5-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Handyboard Parts
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|
(...) The MC68HC11A1FN is available from BG MICRO. ( (URL) ) The 32K static ram is available from JDR. ( (URL) ) (28 years ago, 5-Jan-97, to lugnet.robotics.handyboard)
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| | Returned mail: Service unavailable
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----- Transcript of session follows ----- <<< HELO media.mit.edu <<< MAIL From:<brose@ipa.net> <<< RCPT To:<jwright@seattleu.edu> <<< DATA <<< QUIT mail: /var/spool/mail/jwright: cannot append mail: cannot open dead.letter 554 (...) (28 years ago, 4-Jan-97, to lugnet.robotics.handyboard)
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| | Handyboard Parts
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Well here I am again. I have gotten all my parts except the microprocessor (MC68HC11A1FN), the IR demodulator (IS1U60), and the 32K static CMOS RAM (62256-100LP). I have tried Jameco for the RAM but the Jameco part number 42833 doesn't seem to be (...) (28 years ago, 4-Jan-97, to lugnet.robotics.handyboard)
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| | Got V2X working...!
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Recently I posted a request for help in interfacing the 68HC11 to the Vector 2X, and through the help of readers of these groups, thank you very much, I was able to get it running. It was quite persnickety, with many possible modes of operation, so (...) (28 years ago, 4-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pcode downloading
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(...) Yep, that checks out. (...) I get the correct voltages for the caps. And if the wrappers are on correctly they should all have the correct polarity. I ordered a replacement MAX232CPE (not the high speed "A" version). Hopefully this will either (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Coparison of Sensors
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(...) I agree. You should only have a semi-colon after a while if you dont want that while to loop through any instructions. A semi-colon after a while tells the compiler that all you want to do is continuously test the while condition until it (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Coparison of Sensors
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(...) Looks like you got too many semi-colons. Take out the semi-colons on all the while lines where you want the while to do the following thing. The process is getting to the "while(!start_button());" line and staying there. Also you have too many (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Config 0C / 0D
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Hi, I know this is an old chestnut but believe me I have searched the mail archive and nothing quite matches what I'm seeing. I have a handyboard which I made and which seems to work perfectly. However, I have to download (using hbdl) with the (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pcode downloading
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(...) OK, well I think it is isolated at the pseudo-MAX232 chip. Did you get the +10 v power supply pin on the p-MAX ok? It's at pin 2. Measure it w/r/t ground and you should get +10v. Before you order a real Maxim, check the polarity of your (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pcode downloading
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(...) : (...) I get -8.9v when its not jumped. When jumped I get some floating values in the mV range. I checked all of the solder joints. Changed power supplies. Removed and reseated the chip. Checked power and continuity at various points around (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Re: pcode downloading
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Here is the relevant part of the test instructions: Finally, the MAX232's ability to transmit data to the host computer is tested. Again using pin 7 of J9 as a ground reference, measure the voltage at pin 3 of J9. This is the MAX232's serial output. (...) (28 years ago, 3-Jan-97, to lugnet.robotics.handyboard)
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| | Coparison of Sensors
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|
Hi, I know this is probably a stupid question to you, but I wrote a program to compare sensors. But it doesn't seem to work. Can anyone help?? Here it is (28 years ago, 2-Jan-97, to lugnet.robotics.handyboard)
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| | Problem Downloading Pcode!!!!
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Hi, I'm really stuck. I got a facory fresh HB, instead of a Motorola it had a Toshiba C11W chip. When dowloading pcode_hb.s19 IC Win 95 says "CONFIG register required resetting. Please place in download mode again." Help, my scince project is due in (...) (28 years ago, 2-Jan-97, to lugnet.robotics.handyboard)
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| | pcode downloading
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|
Happy New Year! I'm putting together a HandyBoard and am stuck at the point where pcode_hd.s19 is downloaded. Some details: Have a chip labled SIPEX SP232ACP as a substitute(?) for MAX232. During downloading using DLM the board syncs OK but (...) (28 years ago, 2-Jan-97, to lugnet.robotics.handyboard)
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| | Re: Using RC cars for robot
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|
(...) We have successfully integrated a Traxxas RC car with the Handy Board. The vehicle uses a standard servo for steering and an electronic speed control (same behavior as a servo.) Since the HB can control 2 servos this works well. In this case (...) (28 years ago, 2-Jan-97, to lugnet.robotics.handyboard)
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| | interfacing to RC cars
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|
I haven't interfaced RC cars to a handyboard, but my experience might help anyway. (...) Tyco "Fast Traxx" and a look-alike made by Nikko. Both have dual treads (and therefore differential steering). Both are very fast. Unfortunately, both are (...) (28 years ago, 1-Jan-97, to lugnet.robotics.handyboard)
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| | Re: HELP! Handyboard ALMOST works.
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|
In your message you said: (...) Sorry, testbrd.c and diag.c have nothing to do with the Handy Board. They are part of the older 6.270 board distribution. Get the hbtest.c program from the Handy Board software pages. -Fred (28 years ago, 31-Dec-96, to lugnet.robotics.handyboard)
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| | RE: Using RC cars for robot
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|
(...) Chicago Models International "M1A1 Abrams" tank Radio Shack "Wild Cougar" (Nikko America 'Shredder") Radio Shack "Scorpion Tracks" (...) Conveniently :-) I pick only RC cars where I can drive them with differential steering. (...) I've built (...) (28 years ago, 31-Dec-96, to lugnet.robotics.handyboard)
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| | Using RC cars for robot
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|
Hi everyone, Beleated merry christmas and happy new year.... I would like to find out from those of you who have recently or are presently using RC cars with their handy boards for robots. 1. What type of vehicle did you use? 2. How did you handle (...) (28 years ago, 31-Dec-96, to lugnet.robotics.handyboard)
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| | HELP! Handyboard ALMOST works.
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|
Stuff that works: IC loads fine 1+2; returns 3 printf("Hello World!"); works LOAD MUSIC.C works {looney_tunes();} plays the tune but then.... LOAD TESTBRD.C Gives a page full of undefined functions. LOAD DIAG.C Gives several pages of undefined (...) (28 years ago, 31-Dec-96, to lugnet.robotics.handyboard)
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| | Assembling the handyboard - ic3b1
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|
We have completed building the board. As mentioned in an earlier note, we are using the beta version of Randy Sargent's IC. Here is some experiences: - extremely easy to use. Fun. - thanks for a great product. Some things are not that smooth - may (...) (28 years ago, 28-Dec-96, to lugnet.robotics.handyboard)
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| | Re: sending signals over power lines
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|
(...) Andrew, I've putzed around a bit with the system you've discribed. Its called X-10 power line carrier transmission. (P.L.C.) The codes format was setup back in 1978 for Sears and Radio Shacks Plug 'n Power system. Since then X10 Powerhouse has (...) (28 years ago, 28-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Polaroid pinouts
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I forgot who...someone over here said that they put up scans of the Docs on his hompage or somthing like that. Anyonre remeber something like this? (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Re: sending signals over power lines
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|
(...) Whether the signal is traveling over AC or DC does not matter. What type of current is running through the wires is unimportant. What is important is that your electical wires *already run all over your house*. What these devices are (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Re: sending signals over power lines
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(...) There are a bunch of proposals along these lines (eia standards, and future standards) CeBus, LonWorks. X-10 is most prevelant, somewhat limited, and some of the stuff sold is of marginal quality, although some is really good. X-10 is what you (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | RE: sending signals over power lines
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There is a good write up on this in one of Steve Ciarcia's columns in BYTE magazine some time in the early 80's. A quick stop at the periodicals desk of a technical library might help you here. --Chuck ---...--- From: Andrew S. (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | sending signals over power lines
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hello. While this question doesn't pertain directly to the handyboard, I thought I would post it here since I am using the handyboard in my project. Some of you may have heard of this product: There are devices on the market (radio shack and a few (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Hey, it works!
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I can hardly contain my glee! After 3 weeks of fun-yet-obsessive, marriage-threatening, Xmas-be-damned behavior, I've got all four IC and OC interrupts going, receiving/processing/outputting 4 RC PWM signals. This is only a side-note for Handyboard (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Assembling the Handyboard
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|
Hello all: We saw the recent message, same sub. We got our handyboard from Digital Micro a couple of days before the holidays. We had a great time building the boards. The kit is excellent. The instructions are great - even for novices like us. (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Assembling the HandyBoard
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(...) The whole issue of null (inverted) connections vs. straight-through is incredibly confusing, because you must take into account the gender of the connector (male pins or female pin sockets) in determining whether it is a null connection. Start (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Thanks, Fred
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Fred, Thanks for giving us this great design. I appreciate it and I enjoyed building my Handy Board from a kit. I do have two corrections, though. No big deal, just typos. In the on-line assembly instructions, J15 is referred to as J14 at one point, (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Assembling the HandyBoard
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(...) I was getting similar behavior with my board. It wasn't clear to me that pins 2 and 3 in the serial cable from the PC to the interface board should be switched. Credit goes to Mike Ross for helping me figure this out. Once I switched these two (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Assembling the HandyBoard
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(...) You need that resistor to stabilize the crystal frequency. Try Radio Shack if it is missing from the kit. It doesn't have to be 1/8 watt, 1/4 or 1/2 watt is fine, just make sure it is 2.2 megaohm. (...) So far so good. (...) There is probably (...) (28 years ago, 26-Dec-96, to lugnet.robotics.handyboard)
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| | Assembling the HandyBoard
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Hello all: We got the handyboard assembly kit from Digital Micro Systems. We are putting it together now. Everything has gone well. Thanks, the instructions are really good. A couple of things have not worked quite right: 1. Couldn't find the 2.2M (...) (28 years ago, 25-Dec-96, to lugnet.robotics.handyboard)
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| | E-mail Address
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My e-mail is going psycho. just to make sure, my email address is:: ameba@mcleod.net -thanx (28 years ago, 24-Dec-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Sorry, my E-mail address is realy: ameba@email.mcleod.net -thanx (28 years ago, 24-Dec-96, to lugnet.robotics.handyboard)
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| | (Polaroid Pinouts)
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Scott, The J1 connector has the following pin assignments: pin 1 GND pin 4 INIT pin 9 V+ pin 6 OSC pin 7 ECHO pin 8 BINH pin 2 BLNK (28 years ago, 24-Dec-96, to lugnet.robotics.handyboard)
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| | Polaroid pinouts
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Hi I've just received my Polaroid sonar stuff, but there's no documentation ! (of course Polaroid appear to have closed for Xmas.....) Does anyone have the pin assignments for the 6500 series Polaroid sonar module. The connector is roughly in the (...) (28 years ago, 23-Dec-96, to lugnet.robotics.handyboard)
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| | Re: no download mode
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(...) Mine was doing what sounds like exactaly the same thing... Try replacing you MAX 232 chip if nothing else works, I blew mine out (god knows how) a while ago, and was acting like you said. Just a suggestion :) -Wes (28 years ago, 23-Dec-96, to lugnet.robotics.handyboard)
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| | no download mode
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I spilled coffee on my handyboard this morning - it was powered off at the time. There was liquid across several pins on the 6811, though. I removed the 6811 and cleaned it up, then reinserted it. Now, both red&green LCDs come on when I turn it on. (...) (28 years ago, 23-Dec-96, to lugnet.robotics.handyboard)
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| | RE: Workin' its little heart out?
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The trick is to make sure that if you get simulataneous interrupts you services them both before returning. ---...--- From: Mike Ross[SMTP:mross@outl....nasa.gov] Sent: Monday, December 23, 1996 12:59 AM To: handyboard mailing list Cc: TRP mailing (...) (28 years ago, 23-Dec-96, to lugnet.robotics.handyboard)
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| | Workin' its little heart out?
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Hi, all... A generic 68HC11 question- I (sorta) got my code running this weekend. I'm trying to get a 68HC11E1 to operate all 4 OC and IC lines on interrupts. I have about 800 instruction cycles spread over 8 interrupt routines. The waveform I'm (...) (28 years ago, 23-Dec-96, to lugnet.robotics.handyboard)
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| | serial port
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Hello, I'd like my handyboard to communicate with my PC through the serial port. Since I am not a RS 232 specialist, I am looking for code on the PC side. I am using Visual J++ and/or Visual C++ under Windows 95. Thanks for any help. Laurent (...) (28 years ago, 23-Dec-96, to lugnet.robotics.handyboard)
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| | mailing list, unsubscribe
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Thank you for my time on your mailing list. Pressure of commercial work makes it impossible for me to keep up, so please remove me from the list. I look forward to being able to read it again some time in the future. Thanks, Terry, a.k.a. (...) (28 years ago, 22-Dec-96, to lugnet.robotics.handyboard)
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| | Re: chip selects:
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(...) They are memory-mapped. See Appendix B of the 6270 Robot Builder's Guide, in the Tech Docs area, for info. -Fred (28 years ago, 21-Dec-96, to lugnet.robotics.handyboard)
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| | chip selects:
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Perhaps I have just overlooked this in the documentation for the HB and IC. Is there an easy way to control the chip selects Y*? Are they memory mapped or harder to get to than that? Thanks for the info: patrick (28 years ago, 21-Dec-96, to lugnet.robotics.handyboard)
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| | RE: JAVA and the handyboard
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There is another paper in SPIE Mobot Robots 11...I'll put that on the MIT AI ftp site when I get back from vacation (1/2/97). Willie (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Bali papers?
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(...) I noticed both the PS files had a strange character at the beginning of the first line and the last line. I wasn't able to print the files until I removed the strange chars. -- Clint (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | Re: (Polaroid quandry)
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(...) Yes, you can use the +5v regulated power bus to power the ranging module. That's all the power you need for a Polaroid US system. (...) That's 2500 mA. (through the power lines of the renging module) At least that's what the specs say. Who (...) (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | stepper motors
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Hi all, I want to control 2 stepper motors with my handyboard. I want to do microstepping for high resolution. I already have a couple of vexta unipolar(6 wire) steppers. I also have the TI Sn754410 H-bridge chips. I now understand the need for (...) (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | Bali papers?
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Has anyone had any luck in reading the PS files on Bali? My Ghostview v1.5 on HP-UX gives many errors. (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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