 | | important update to Handy Board standard libraries.
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Hi all, There has been a bug lurking in the Handy Board standard library files since the dawn of time (well, 1996, when the HB got started). The bug can happen when you are using multi-tasking, and more than one IC task is performing analog sensor (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Addresses of SPI ports
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Hello. I was wondering if anyone knows all 4 addresses for all 4 ports of SPI header. Thank you (26 years ago, 19-May-98, to lugnet.robotics.handyboard)
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| | Re: Handy Board problem
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(...) You probably mean the Sharp GP1U5x. That one is modifiable so that it can be read like an analog signal. If anyone can direct me to a company in the Netherlands which sells these parts, I would very much like to know. Thanks. (...) ***...*** * (...) (26 years ago, 19-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Commands
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Look at (URL) for all the information that you ever want to know about LCDs : how to interface, how to control, sample source code and all commands. (...) ***...*** * de groetjes van..... Paul Wiegmans * * spectral@simplex.nl * * fidonet 2:500/143.1 (...) (26 years ago, 19-May-98, to lugnet.robotics.handyboard)
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| | Problems with new Smooth-PWM-Pcode
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Hi all, i have problems during download the new smooth-pwm routine into my handyboard. All times my downloader stopped after few seconds with an error message "EOF after 1xxx Bytes ....." I had download the sourcecode and the zip file from internet. (...) (26 years ago, 19-May-98, to lugnet.robotics.handyboard)
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| | Re: RC Servo motor internal electronics
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Ideally, I could use an H-bridge on the same board as the "new" electronics and provide expanded feedback such as current sensing or encoder in addition to the normal servo interface. It would also be nice to allow PWM to control the power presented (...) (26 years ago, 19-May-98, to lugnet.robotics.handyboard)
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| | Handyboard questions
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Has anyone used the eltec 442-3 pyrometer with the Handyboard?? I am in the process of using legos to build a robot, and have a completed 442-3 pyrometer with the lens and all that I got in. I am looking for the best way to wire this sensor, and I (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | Re: Harddisk-Crash - HELP
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(...) The Handy Board web site has a mail list archive page, from which you can download archives of past postings. The last item on the list is entitled "Jan 1997 -- present" (which means it's probably huge). Good luck. --Will , , __@_/ \_@__ |/ | (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | Re: Pad/Hole Widths
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Thanks, I was going to use a pad/hole size of .050/.028. The default size of my library uses .050/.025. I checked some pin size data and it shows .015 (min) to .023 (max). Allowing .008 to .010 extra and .003 for plating, it seems that the best size (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | Harddisk-Crash - HELP
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Hi all, during a harddiskcrash on my computer, i lost all my handyboard mailings. I the past i had contact with view german people but i haven´t any mail-adresses. Please contact me again !!!!! Bye Bernd Klein ;-) P.S. Is there a way to get all (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | Re: Pad/Hole Widths
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Hi Mike check with your board manufacturer for production specification. The via hole size I resently used was 12mil with a via size of 16mil. For Pad/Hole Width use the specifications of the parts you want to put on your board. A hole should be (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | RC Servo motor internal electronics
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Has anyone out there ever seen, heard about, or thought about the details of electronic circuit built into a hobby servo motor to do the positioning and maintaining the position based on the signal pulse sent? I am interested in any information or (...) (26 years ago, 18-May-98, to lugnet.robotics.handyboard)
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| | Pad/Hole Widths
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Does anyone know what typical Pad/Hole Widths are for thru-hole parts? What about via/hole widths? Is there a web site for PCB geometry sizes that someone could point me to? Thanks -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd (...) (26 years ago, 17-May-98, to lugnet.robotics.handyboard)
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| | Charging HB-PLEASE HELP ASAP!!!
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Hello. I just got HB assembled and tested. I do not have external NiCDs connected, since I am going to be cutting the power lead and connecting an alternative power source. From what I understand there is an internal battery that still needs to be (...) (26 years ago, 15-May-98, to lugnet.robotics.handyboard)
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| | E Series MCUs
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I am using an 811E2 part in my handyboard with IC. It is supposed to have problems with this chip. I have not disabled the EEPROM but it still seems to work. I have been having a problem finding the A1FN part. I do not want to buy anymore of the (...) (26 years ago, 15-May-98, to lugnet.robotics.handyboard)
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| | Powering and charging handy board
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Hello. Several questions. What is the best way to charge the board? Through charger board or to teh board directly. Also, when i am chanrging it, am I charging the internal battery or the external NiCD batteries? Also, does the board have its own (...) (26 years ago, 14-May-98, to lugnet.robotics.handyboard)
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| | handyboard for sale
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I have a completed and operational handyboard which I am offering for sale. Contact me at jnbs@wizard.com Thanks Jim (26 years ago, 14-May-98, to lugnet.robotics.handyboard)
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| | Shorted Handyboard
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Finishing mounting our handyboard to the chasis of our robot, we shorted the board. A screwdriver made contact near the IR reciever on the bottom right corner of the board. Additionally, the 2.5A fuse blew. After this occured, we have not been able (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Does the HB NEED 9.6 volts?
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I am planning on using stepper motors with a handy board, which hopefully I will have in a week :) The specs on the HB say it uses 9.6 volts. Is this a required voltage? or can it be another rating as long as it is within the regulators limits. (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard 10-16 Servo support
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(...) I had exactly the same problem. There is a CMOS chip by Motorola called the MC14028B that is a BCD-to-decimal or Binary-to-octal decoder. All that really matters though is that it will take a 4-bit input and decode up to *10* outputs that are (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Interrupt counter rate
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Hi everyone. I use a 4 bits binary counter to measure the no. of pulses emitted from a shaft encoder(TTL output) in order to calulate the speed of a DC motor. But i want to know what is the best frequency that the processor should take the bit (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | L293E sense output ??
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Hi, I'm using a L293E to drive my motors. Each driver has a "sense" output and I don't understand the use of it. How can I use those outputs with the Handy-Board ? Thanks for any help, ......... Fred, Cannes, France EMail: fred.maillet@wanadoo.fr (...) (26 years ago, 13-May-98, to lugnet.robotics.handyboard)
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| | Re: What is the best way to eliminate mechanical error trough software
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(...) therefore the robot tends to drift toward the side of the slower motor. (...) one, so I'm looking for some input to help me write an efficient program to keep the robot moving straight. I handled this type of problem by creating a new process (...) (26 years ago, 12-May-98, to lugnet.robotics.handyboard)
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| | What is the best way to eliminate mechanical error trough software
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Hi I built a small circular robot base with differential steering using 3" diameter rubber wheels and optical encoders on both wheels. The motors powering the robot are high efficiency German built gear motors using 300 mA when stalled, and rotating (...) (26 years ago, 11-May-98, to lugnet.robotics.handyboard)
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| | WinCE Downloader - Exist?
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Does anyone know of a downloader to the handyboard for a Win95 CE platform? -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd Amendment! Your rights may be next! ---...--- (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Commands
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I have those docs. I knew that it was driven by the hd44780 but the summary page on their web site indicated that the 44780 could drive 2 lines of 8 characters and I assumed there must be a micro on the board to handle the 2x16 and that there might (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: Testing with PCBUG11 - Getting Close
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Thanks, I'll try this. I did finally realize that the HandyBoard is not supposed to boot to expanded mode. Thanks again. (...) -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd Amendment! Your rights may be next! ---...--- (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Handyboard PCB's available in UK
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I have a small stock of Handyboard PCBs which I can supply as a set of HB and IF/Charger board for £19-50 sterling including first class post to UK locations or Airmail to Europe. I will also include the ZTX 614 darlington with every set of boards (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: ** adobe acrobat reader **
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(...) The first step is to install Acrobat Reader per the instructions that come with it. Sounds like you've done that. The next step (provided you have a PC running Windows) is to go to the appropriate web page and right-click on the link for the (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: LEGO parts
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(...) The air compressor (the one meant to be driven by a motor) is offered in the Lego Shop At Home Spring '98 catalog as part #5117, $4.00, and it comes with a few pulley wheels. Often, even if they don't mention it in their current catalog, if (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| |
| | ** adobe acrobat reader **
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Hello, I just loaded adobe acrobat reader, what do I need to do to read the manual for the handyboard? Can I download it and read it off line? Do I have to somehow open adobe? while online? HELP!!!!! I really dont know what to do to run this (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | LEGO parts
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Is it possible to buy individual legos that are not normally sold individually? For exaple, the pneumatic parts are advertised as being sold seperately. But several sets have an air compression chamber that is not advertized as being available to be (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | Re: LEGO sets 9605
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Contact Lego Shop At Home 1-800-453-4652 They are Enfield Ct, and as a matter of fact, I just received thier product catalogs, took less then 3 days to get them.. (...) that manufactature this (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | LEGO sets 9605
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Does anyone know where I can buy LEGO sets 9605 or the site of the company that manufactature this product ? I would appreciate it very much if anyone can contact me on this. ~~~...~~~ FELIX ADEKOLA (YEAR IV ) DEPT. of ELECTRICAL & COMPUTER (...) (26 years ago, 9-May-98, to lugnet.robotics.handyboard)
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| | "Undocumented I-C"
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Well I finally worked out something that I knew was there, but did not know how to access: The PCODE.ASM file lists a pcode routine called "Pbench". The code is in there, and it measures the time available to the IC current task, excluding time (...) (26 years ago, 8-May-98, to lugnet.robotics.handyboard)
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| |
| | (no subject)
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Could you please take me off the mailing list ? Thank you very much indeed Antony Kanouras (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | Re: CONFIG reg
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John, If you use Window version of pcode downloader, the program also allow you to change the CONFIG. -Pandit ---...--- (...) (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | Re: MODB - How Is Expanded Mode Entered
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Mike, I never goes into expanded mode! The Handyboard operates in special test mode and special bootstrap mode. Special test mode works like expanded mode but some the internal registers are not protected. (...) -- Jeff ___...___ \ Jeff Loeliger (...) (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | Re: Testing with PCBUG11 - Getting Close
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Mike, I used PCBUG11 to test my handyboards. The reason that you can not access the SRAM is that PCBUG11 boots single-chip mode and there is not external bus. You need change HPRIO from $85 to $A5. -Jeff (...) (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Commands
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Hi The LCD display is driven by a HD44780 Controller. Download the docs.. or check the following page (URL) Is there some documentation somewhere that shows the commands (...) (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | counter problem
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Hi everybody Does anyone know which websites I can order some 8 bits or 6 bits counter for an encoder TTL output? Thank you for your replies (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | CONFIG reg
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I have a factory fresh 68HC11A8 chip. The CONFIG reg. is set to 00x0F. How do I change it to 00x0C for the Handy Board ? Thanks, John (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | ** handyboard manual **
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Hi, I am trying to download the manual but i need to set up a helper app ??? Do I need to load some software to unzip or read the manual? thanks-mike (26 years ago, 7-May-98, to lugnet.robotics.handyboard)
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| | Re: Handy Board problem
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Okay, thanks for the information... (...) WebGard LLC dba ESSLink World Wide Web: (URL) info@esslink.com Phone: (860) 693-2448 Toll Free: 1-800-838-2302 Fax: (860) 693-6298 (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: * the handy-board manual*
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The HB HP ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: Handy Board problem
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I use the Siemens SFH506-36 instead of the Sharp, and it works just fine. I know there also is another compenent you can use, but I don't know the name of it anymore, sorry. Perhaps if Maarten Emke reads this, he knows what I mean. Be carefull by (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Commands
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(URL) is one of the many FAQ's on the net for LCD's. (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | * the handy-board manual*
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Hello where can I find the handyboard manual to download? thanks -mike (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Multitasking
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Hello, I am multiplexing 5 LED displays through the Handy Board, but I am getting excessive flicker as in the brightness of the displays is not constant...the intensity of the displays varies from time to time. Does anyone, then, have a program to (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: **handyboard**
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|
(...) No it's actually quite easy, the only thing is you have to do a lot of soldering. Be careful of the HC373 which is mounted directly onto the board as if it is damaged by heat, then you will have a "nice" time desoldering it... To drive both (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard in Germany
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Hallo Carsten, es werden immer mehr Deutsche oder zumindest deutsch sprechende Mitglieder in der HB-User Gemeinde. Wir sollten tatsächlich überlegen, wie wir eine solche "Ecke" einrichten könnten. Ein Bezugsquellennachweis wäre sicherlich eine gute (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | LCD Commands
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Is there some documentation somewhere that shows the commands required to talk to the display. I would like to control the display from assembly code and I need to know what these commands are. I already know how to talk to the display using the A, (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| |
| | Re: DS1233 Monitor Chip
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|
I used the MC34064 in both of the handyboards that I built. WARNING !! The pin out the DS1233 and MC34064 is DIFFERENT! You need to rotate the MC34064 by 120 degrees. Check the pin out before inserting the MC34064. If you do not rotate it, the (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard in Germany
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|
Hi Rich, so wie es sich ließt, kannst Du besser deutsch wie ich englisch. Vielleicht sollten wir eine Deutsche HB-User Ecke einrichten :-) :-) - Mal sehen was Fred dazu sagt.- Da mein englisch nicht das beste ist, habe ich so manches mal Probleme, (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: DS1233 Monitor Chip
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I already tried it. Works fine. Thanks, (...) -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect the 2nd Amendment! Your rights may be next! ---...--- (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | porting IC 3.2 between computers
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I need to bring my IC 3.2 program to another computer. Do I need to reinstall the files from the original execuatble? Or can I just zip up my IC directory and unzip it on another computer? ---...--- ericson mar Master of Engineering Candidate (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: L293d
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|
Hi Paul, You can visit Handy Board WEB and look under "Get One" . Pick component button under "Get One" you will see a couple of places that have L293D. -Pandit ---...--- (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | 256 Motor Power Resolution
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Hi All, Has anyone noticed that if you slightly modify Julian Skidmore's LIB_HB.C code that one can get 256 motor power levels rather than 100? I took the following code in LIB_HB.C: void motor(int m, int speed) { if (speed>100) speed=100; if (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard 10-16 Servo support
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|
"HC" is for CMOS chips "LS" is for Low-Power Schottky chips Brian Carvalho Devry Institute New Jersey (...) (26 years ago, 6-May-98, to lugnet.robotics.handyboard)
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| |
| | HandyBoard 10-16 Servo support
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|
I am trying to develop simple Hardware/Software to support up to 16 servos from the HandyBoard. A theoretical constraint of my plans is that only about 10 of the 16 connected servos will be able to actively hold position at one time. I plan to do (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: how do I build my own pcode?
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|
You can pick up the pcode source from the MIT web site at (URL) file contains the source code for 2.8 pcode with instructions on how to re-compile under msd*s. I have modified the source to use larger/smaller LCD displays, although they need to be (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | how do I build my own pcode?
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Title says it really. I am using both IC2.8something and IC3.2. I would like to make some small changes to the pcode for these to allow other LCDs and so on. (one goal would be to do without the LCD if I wanted to) I would rather work in a (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | New for 98, Finger Board II - Redesigned
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New features on Finger Board II: Improved layout and better parts spacing. No extraction tool required for processor removal. Improved silkscreen. Jumper selectable reset address. Reset vector can be located at 0xFFFE,0xFFFF or 0xBFFE,0xBFFF. Now (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| |
| | Re: *low voltage sensing*
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|
if(analog(0) < 240) { blah blah blah } analog(0) is the analog sensor 0 on the HB and 240 is like 4.7V 240/255*5.0V = 4.7V ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | *low voltage sensing*
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|
hi i need to know if the handyboard can sense low-voltage and what the program would look like in c or some kind of basic? thanks -mike (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| |
| | FW: FW: Just in case - it's a hoax
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|
Sorry, should of checked first..... (...) Shareware VB Add-Ins (Written By Me) Available On My HomePage www : (URL) (...) ICQ: 11508290 Work: (URL) lewis.cornick@silversands.co.uk (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| |
| | (no subject)
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|
Help: We have had five boards go bad after charging of the battery. These boards passed all of the tests and functioned perfectly. However after the batteries were first discharged then recharged we get nothing on the screen. pcode appears to load (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| |
| | FW: Just in case
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|
(...) [Lewis] Thanks (...) Shareware VB Add-Ins (Written By Me) Available On My HomePage www : (URL) (...) ICQ: 11508290 Work: (URL) lewis.cornick@silversands.co.uk (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard in Germany
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|
Hallo Kai, da ich ebenfalls aus Deutschland komme, habe ich vor einiger Zeit das gleiche Problem gehabt. In Deutschland wird nach meinem Wissen lediglich das Rug-Warrior Bord vertreiben (über Joker-Robotics). Ich habe mein HB in den Staten gekauft, (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| |
| | L293d
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|
Hi everybody Can someone tell me which websites I can order the motor driver chips, L293d? Thank you. (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: how do i get info on where to buy a handyboard?
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|
Go to Handy Board WEB page and look under "Get One". You will see all kind of info of how to get one including bare PC board and component vendors. Here is the URL: (URL) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | HandyBoard in Germany
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Hello Community, I would like to enter the "World of HandyBoard" and I'm searching for a Distributor in Germany (or some people who know how to get one in Germany). I would buy it in every state: ready-made, kit and PCB only. Is there a community of (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: recharging a battery the right way
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|
you should charge a lead acid battery which is between 10% and 90% charged at a rate of Capacity/10. In this case the rate would be 0.2 amps. when the battery is either almost charged (>90% charged) or almost depleted (<10% charged) the rate shoud (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: how do i get info on where to buy a handyboard?
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|
Look up "Handy Board" on the internet. It will be the first hit on the search usually. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: **handyboard**
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|
You can write "Interactive C" (IC) programs on a PC/Mac and download it into the HB. IC is like C but alot less complicated. If you know C, it is pretty simple. If you don't know C, it is just simple. You can also write Assembler which is a little (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: how do i get info on where to buy a handyboard?
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Mike, (...) The best place for all information about the handy board, including the places to buy, is the Handy Board Home page. (URL) get directly to the page on where to buy them, then go here: (URL) (at the Uni) purchased ours from Patrick Hui, (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Addressing
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Mike, Chuck McManis may have answered your request, but in case you still want sample code I am attaching an example code that prints to the HandyBoard display. (The code forms part of the Handy Board buffalo I had developed). I had trouble getting (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | how do i get info on where to buy a handyboard?
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hi i am lookin for a handyboard, i saw one at trinity college it came with batt charger prgrm cable dc motors sensors etc... where do i get one a phne # or e-mail address etc... thanks -mike (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | Re: Controlling a DC motor 3
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(...) Actually, the frequency is somewhat important. The faster you switch, the more power will be lost to the switching of the power transistors and the filtering effect provided by the inductance of the motor. At the other extreme, frequencies (...) (26 years ago, 5-May-98, to lugnet.robotics.handyboard)
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| | **handyboard**
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hello, i was wondering if anyone can help me.i dont own a handyboard yet, how do you program it, i am worried that it is very compicated to do. please if you could send me some simple code say to move both drive motors fwd, how would you do it? i (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download pcode on a Mac G3
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I have a 266 G3 minitower, and I have the identical problem. The only way to solve this is to let IC die, not reset the HB and then run IC again. It complains to can't talk to the HB, and then I reset the HB and all works fine. Kinda odd, but it (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Hardware Questions
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Recently, many of you have had pretty specific hardware-related questions. The best thing to do is to read Appendix B of the MIT 6.270 Robot Builder's Guide (Appendix A of the new 1998 Course Notes). This appendix contains a complete description of (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Motor Drivers in 7000 - 7fff
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Jaron, (...) This was done (obviously) to save extra decoding circuitry needed on the board. That is, if the handy board needed to assign (say) 7000 as the motor then sixteen address lines need to be decoded (binary 0111 000 000 000). Yet with the (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Working with a different compiler 2
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Howdy All, I am in a happy mood today. I finally got to the 'hello world' stage. All I had to do was count the number of interrupts, * 2 (16 bit addresses), subtract this from BFFF which is the reset vector and thus supply BFD6 to my linker to start (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Addressing - & - Expanded Mode
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From the driver code I recently sent out: * LCD Connections on the Handyboard * PORTB bit 0 - R/W * PORTB bit 1 - RS (Register Select, 0 = instruction) * PORTC 8 bits of Data * PORTA bit 4 - E clock (...) That is correct, the LCD is NOT memory (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: dc motor blues
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Hi All; Along the same lines, I would LOVE to control my motors so they run at constant speed under varying load. I know that it's theoretically possible to sense the RPM of a PM DC motor by tracking the drive voltage as the commutator makes and (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | RE: Connections
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Hmm... I had the same problem and made an only mildly inelegant kludge with straight and right-angle headers. How much do you enjoy soldering? Seriously, does anyone know of any single-row intraconnectors? Brett Anthony Research Technician School of (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download pcode on a Mac G3
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(...) Yes. Using the same set of boards, I can download pcode using IC 3.1 as well as IC 2.xxx from my old macintosh Centris 650 as well as from Performa 6100. -Paul (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download pcode on a Mac G3
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Hi Paul, This is the first time we've heard of such a problem with IC 3.1 on the Mac G3. Can you verify that it is the case that pcode download works fine for you from other Macintoshes? -- Randy ---...--- (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Schematic drawing - freeware ???
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Hi Les, i´m using a nice drawing programm (TARGET 2001). In germany we can get a "lite" Version of a big-drawing programm it´ easy to use and it works great, but it is in german. If you are interested, send me a mail tschau bernd (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Handy Board problem
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I got mine from FutureActive. I don't remember what the cost was and I don't remember what else I got from them, but it was more than just that. I think I placed about 2 orders with them. I would much rather deal with Mouser and Digikey. If you have (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Addressing - & - Expanded Mode
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I found the driver you sent earlier. Thanks. BTW, I found out that my LCD is good but I still have a problem. It appears that I cannot change my CONFIG reg. Maybe because it is an 811E2; don't know. Should be able to however. Since the program was (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Addressing - & - Expanded Mode
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Wierd: Anyway I have some kind of problem with the handyboard. All steps up to the testing of the LCD went fine. When I plugged in the LCD and turned it on, it lights up (one line) bright not dim. I tried to download the pcode_hb.s19 with config set (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Addressing - & - Expanded Mode
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So, this still doesn't help me figure out how to address the LCD. It has A8 and A9 connected along with a CLK from Port A. Does this mean that the LCD is NOT memory mapped? Do I first have to write to Port B then write to Port A, to clock it. This (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: DS1233 Monitor Chip
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(...) I use an MC34064 on a 68hc11, and have never had any problem with it. Philippe Guermeur guermeur@ensta.fr (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Micromouse speed
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Hi, does anyone know how fast should a micromouse move? and the other question is, will the 6811/handyboard have enough capability (address space) for maze solving? If not, what should I need? extra memory or 32bits processor? Thank you for any (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Controlling a DC motor 3
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(...) Within limits, the rate doesn't matter much. What matters is the ratio of off time to on time (i.e., the duty cycle). Probably, you could change the frequency by an order of magnitude either way and get about the same results. --Will , , __@_/ (...) (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: LCD Addressing - & - Expanded Mode
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(...) You can only run the LCD when in single chip mode. (...) This leaves the chip in 'special test mode' that lets you go into and out of expanded mode by writing the config register. --Chuck (26 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | Re: Polarity of PowerJack from HB und Charger Board
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on the interface/charger, since there's a bridge rectifier immediately normalizing the input jack voltage -- regardless of polarity -- it kind of doesn't matter which polarity you use. there is a discrepancy between the int/charger schematic and (...) (26 years ago, 3-May-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download pcode on a Mac G3
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Paul -- have you tried 6811 Downloader? Any luck with that? looks like Randy and I will both need to get our hands on a G3 to debug our code :-) Fred In your message you said: (...) (26 years ago, 3-May-98, to lugnet.robotics.handyboard)
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