 | | Handy board troubles.
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I have various handyboard and i never use the IR ports. So i'm assembling one handy, and don't put al the components asociated to that ports. I download anyprogram to that's board and never boot again!!!! The transmision is o.k. but don't start (...) (27 years ago, 16-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Config Register error
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I had the same problem. I was never able to get HBDL to set the config register. I used DL to set it on one board and DLM on another. I used the information from the HandyBoard technical reference manual to use these programs. (URL) the config (...) (27 years ago, 16-Jan-98, to lugnet.robotics.handyboard)
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| | Config Register error
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hello all, I have only started building the Handy Board and have run into some problems at the very start when i first conected the part built board. I have build it as far as the power supply, stop switch and 68hc11 installed, memory and lcd. When (...) (27 years ago, 16-Jan-98, to lugnet.robotics.handyboard)
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| | Hooking up PA7
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I downloaded the 9600 baud serial driver that uses Digital input #9 or PA7 (I think). It is really unclear to me which connector I should plug into. In between the IR I/O section and the BATTPWR LED's there are a bunch of connectors. The manual (...) (27 years ago, 16-Jan-98, to lugnet.robotics.handyboard)
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| | using handyboard with vernier ULI
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Hello from New Mexico I'm currently teaching a robotics class at the high school level and we have been exploring the possibility of creating a rover that will eventually be independent and have enough AI to make decisions that will get it through (...) (27 years ago, 15-Jan-98, to lugnet.robotics.handyboard)
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| | Initialization Problemas. S.O.S.
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Hello Out there! We are a group of computer science students here in Universidad Simon Bolivar (Caracas, Venezuela). We are currently teaching a robotics course as we took it last trimester. We are having trouble initializing the handyboards. The IC (...) (27 years ago, 15-Jan-98, to lugnet.robotics.handyboard)
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| | Re: 8 bits A/D bus
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Please read Appendix B of the 6.270 Robot Builders Guide. This explains how to interface latches with the Handy Board. See (URL) Hello, (...) s (...) k (...) e (...) (27 years ago, 14-Jan-98, to lugnet.robotics.handyboard)
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| | Re: 8 bits A/D bus
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I am building a somewhat similar circuit (a high-current h-bridge for the handy board), although I only need to read the data lines. However, the same approach will work for writing to the bus. My circuit lives on a board which plugs in between the (...) (27 years ago, 14-Jan-98, to lugnet.robotics.handyboard)
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| | 8 bits A/D bus
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Hello, I've bought a handy board, and try to build a card to enserve two motors. On that card I have a IC chip (HP hctl 1100) that needs to be link to a 8 bits Adress/data bus in both reading and writing modes. My problem is where to pick such a bus (...) (27 years ago, 14-Jan-98, to lugnet.robotics.handyboard)
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| | Hb / Hctl1100 interface
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Hello, does anyone know I could find the entire schematics about interfacing a HB with 2 Hctl1100 ??? It would be great!! Thanks in advance, Antony Vallee (27 years ago, 13-Jan-98, to lugnet.robotics.handyboard)
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| | E clock & R/W
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Hi, I'd like to interface the HB to a HCTL1100. Does anyone already know could I pick the 68hc11 E clock and R/W pins??? Thx in advance Antony Vallee (27 years ago, 13-Jan-98, to lugnet.robotics.handyboard)
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| | Re: questions re: unix version of IC
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Joshua - There should be no problems using the Gleason Research libraries (or any of the libraries that are on the web site). There are no differences between version 2.851 and 2.860 from the point of view of the libraries. There is a pre-compiled (...) (27 years ago, 13-Jan-98, to lugnet.robotics.handyboard)
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| | questions re: unix version of IC
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Hi - I'm a handy-board/ic newbie, so please excuse this question if it's answers seem obvious. After two weeks of writing code in DOS/Windows (yuck), I downloaded the ic-2.860beta source code, which compiled without significant trouble in linux (...) (27 years ago, 13-Jan-98, to lugnet.robotics.handyboard)
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| | Motor Outputs
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I built an H-Bridge over the weekend to replace the chips on the Handyboard and I was wondering what pins on the motor control sockets I need to connect the new circuit to? My circuit has a Forward input and a Reverse input. I did notice from the (...) (27 years ago, 12-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Shaft encoder
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Hi (...) You could use spezial interface chips to solve your problem. Hewlett Packard has some chips (HCTL2016, HCTL2020) which are easy to use and offer a lot of features. I have used the HCTL2020 with the handyboard. If you want to interface the (...) (27 years ago, 12-Jan-98, to lugnet.robotics.handyboard)
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| | Shaft encoder
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I need some docs on interfacing/reading a quadrature shaft encoder to a 68hc11... someone can give me some hint? best regards stefano nardone ****** **** stefanon@promos.it *** tel. +39 81 7142222 | fax +39 81 645130 ** (URL) - (URL) (...) (27 years ago, 12-Jan-98, to lugnet.robotics.handyboard)
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| | Freeware IC problems
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I use the Freeware IC compiler. I find that every 3-4 attempts of starting IC or loading a file causes my PC to either hang or crash with garbage on the screen. After a reboot everything is fine for another 3-4 times! In between the problems (...) (27 years ago, 9-Jan-98, to lugnet.robotics.handyboard)
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| | Re: RS-485 Network
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(...) G> Anybody know where i can find physical connections nedeed to build G> a full-duplex RS-485 network with 75176? thanks in advance... There were a couple atricles in Circuit Cellar Ink over the years on RS-485 using the 75176 chip. Their home (...) (27 years ago, 9-Jan-98, to lugnet.robotics.handyboard)
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| | RS-485 Network
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Anybody know where i can find physical connections nedeed to build a full-duplex RS-485 network with 75176? thanks in advance... (27 years ago, 9-Jan-98, to lugnet.robotics.handyboard)
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| | 68HC11's for trade
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I have a limited supply of Motorola MC68HC711E9CFN2 chips I will trade for interesting electronic components. I am currently interested in LCD displays and Universal (Sony) remotes as well as Gameboy Units and cartridges. The 12K OTP ROMs have been (...) (27 years ago, 8-Jan-98, to lugnet.robotics.handyboard)
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| | Time routines
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Anybody have some routines for drive times??? I only need compare a elapsed time in two points of code. Have Imagecraft C built in support ??? Any help be great! Thanks in advance. (27 years ago, 8-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Conversion of motors to Lego motors
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I've put a link to the 6.270 documentation in the FAQ. There are some instructions in the 6.270 docs for "LEGOizing" DC motors. See (URL) -Fred In your message you said: (...) (27 years ago, 8-Jan-98, to lugnet.robotics.handyboard)
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| | Any used Handyboards available or PC boards?
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Hi, Is there anyone out there have any handyboards they no longer want or does anyone have some Handyboard PC boards that they want to offload? Or Are their any folks in the Vancouver area want to buy a number of blanks boards as an aggregrate to (...) (27 years ago, 7-Jan-98, to lugnet.robotics.handyboard)
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| | Conversion of motors to Lego motors
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This isn't really a question about the Handyboard, but I thought that this would be the best place to ask. I have many motors that came with my Handyboard kit (from Gleason Research), but I want to use them with the Lego kits. Is there an easy way (...) (27 years ago, 6-Jan-98, to lugnet.robotics.handyboard)
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| | Input/Output in the 6811
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Can i make a pin output and in the next instruction of input? With th PORTD pins by example??? (27 years ago, 6-Jan-98, to lugnet.robotics.handyboard)
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| | 68H11 on HandyBoard?
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Trying to find all components needed to build a HandyBoard, I have a quite some troubles finding the 68HC11, which is quite vital, I'd say ;-). I now found a place where they sell a lot of IC's, but - of course - not the 68HC11. but they DO sell a (...) (27 years ago, 5-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Touch memory From Dallas...
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(...) If you're just interested in sample code, check out: ftp://ftp.cmf.nrl.na...lib.tar.gz Code to talk the Dallas One-Wire protocol is included. Also included is sample C code that implements the bus discovery protocol. It's actually pretty easy (...) (27 years ago, 5-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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(...) Here is an Interactive C file to do just that. Seems to work well in the 10 minues of testing I've just done. :) Let me know if anyone has problems with this: *Brian Schmalz /* Function to enable SPI port as digital I/O */ /* First you must (...) (27 years ago, 5-Jan-98, to lugnet.robotics.handyboard)
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| | Touch memory From Dallas...
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I have searching info about the touch memory from dallas. I need to know in which way that connect to a microcontroller and wich is the protocol used. Someone now somethingh abou that??? Thanks in advance.... (27 years ago, 3-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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Thanks David for a nice explanation of how to add I/O using shift registers. Let us not all forget that the HB does have two uncommitted digital output ASIDE from the four SPI pins: PA7 (a bidirectional pin which is marked as digital input #9) and (...) (27 years ago, 1-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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On Wed, 31 Dec 1997, Tom Brusehaver wrote: <snip> (...) </snip> yet ANOTHER idea, if you are suitably masochistic, is to use the SPI port for a much more extensible I/O system. As you know, SPI uses 4 basic control signals, MOSI, MISO, CLK and SS... (...) (27 years ago, 1-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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(...) G> Wich are the options to have 3 digital outputs in the handyboard? G> No matter if i have to do little modifications to the Hardware. I G> already know how to conect the keypad if you can tell me how G> obtain 3 outputs.. :) Handyboards are (...) (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | Digital outputs.
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Wich are the options to have 3 digital outputs in the handyboard? No matter if i have to do little modifications to the Hardware. I already know how to conect the keypad if you can tell me how obtain 3 outputs.. :) (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | Re: KEYPAD Connecttions
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(...) G> Anybody know wich is the better way to connect a KEYPAD to a G> 68HC11? What kind? If you have a handy board, use the IR port, there is no wiring necessary. Use a universal remote programmed for one of the sony IR methods, and you are set. (...) (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | KEYPAD Connecttions
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Anybody know wich is the better way to connect a KEYPAD to a 68HC11? (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | Anybody know 68HC711E9??
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I have a Handy board . I want to remove the battery backup for the 32K RAM. This board have a 68HC11A1FN , i have the great idea of replace that with and put my code into the 12 K EPROM of the 68HC711E9. The question is , can be remapped that EPROM? (...) (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Non Volatile Memory 2
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Cypress has their datasheet online. Look for cy62256 at www.cypress.com. If you just want a shortcut to backed up RAM, you might investigate Dallas Semi's smartsocket DS1213. Simply replace the socket with DS1213 and piggy back 62256 on top. You (...) (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Pcoder22.s19
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Hi, Would like to know if the pcoder22.s19 could be relocated to other part of the memory. Current is at $C000~$FFFF. Is there an assembly file .asm for the pseudo code? Regards (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Is there any reason a 68hc11F part wont work with dl/dlm and icc?
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Hi all, Has anyone prototypes/built a version of the handyboard, etc, that used the non-multiplexed 68hc11F chip? Can you use the dl or dlm to download and use the icc ? If so, did you encounter any issues? tnx les (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Non Volatile Memory 2
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Should be. You can probably find the power requirements from the manufacturere of the ram chip on the internet. Or if not, call the maunafacturer up and ask them to send you specs. ---...--- ericson mar Master of Engineering Candidate Project: (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | M68HC711E9
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I have a Handy board . I want to remove the battery backup for the 32K RAM. This board have a 68HC11A1FN , i have the great idea of replace that with and put my code into the 12 K EPROM of the 68HC711E9. The question is , can be remapped that EPROM? (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | Expansion Board
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Does the expansion board exist? If not, Will it exist? ___ IAN | |__ _______ ______ ___ ______ ___ ___ | _ \| _ | ___| | | _____|\ \/ / | |_ ) | _ | |_--- |___| ____| | | |________|__| |__|____ |______|______| |____| (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | Re: random dodgy sensor readings?
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In article <34A7A55B.9E3A63BA@p...-ncs.com>, Mike Vande Weghe <vandeweg@parlance-ncs.com> writes (...) Thanks, I'm not using multiple processes, however i am using the servo routines, perhaps this has a similar effect? I will try putting in the hog (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | Re: random dodgy sensor readings?
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About 2 weeks ago Bill Bynum sent in a fix for a bug that one of his students had discovered. The student was using multiple processes to read analog values, and noticed spurious readings. The problem caused by IC making context switches after the (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | random dodgy sensor readings?
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Hello folks, Is it normal to get invalid 'active' signals from the analog inputs every so often? I have made a lego buggy which seeks out its way from a darkish room into another room and to a window using a light sensor mounted on a sweeping servo (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | Non Volatile Memory 2
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What are the power requirements of the battery backed RAM and would it be possible to set this RAM up with a lithium battery similar to a PC so that the RAM would hold its memory for several years? (27 years ago, 28-Dec-97, to lugnet.robotics.handyboard)
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| | Re: a1e1
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The major difference is A1' has 256-Byte RAM while E1' has 512-Byte. Basically, A1 can be replaced by E1 in Handyboard. Best Regards, Patrick --00---...--- Low cost MIT Handyboard supplier and Official Distributor of Interactive-C 3.1 ** An (...) (27 years ago, 28-Dec-97, to lugnet.robotics.handyboard)
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| | Re: got 11
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Hello, This is one of the bugs of IC3.1 The Pcode was loaded into the board sucessfully. You should quit the IC3.1 program. Then turn-off and on of the Handyboard. You will see IC3.1 message on the LCD screen plus a "beep" sound. Run IC3.1 program (...) (27 years ago, 28-Dec-97, to lugnet.robotics.handyboard)
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| | (no subject)
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(27 years ago, 28-Dec-97, to lugnet.robotics.handyboard)
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| | got 11
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LS I try to connect to my board and I get these messages, does anybody know how to solve this problem ? Thanks. Synchronizing with board Pcode version 3.10 present on board Loading F:\Tools\handyboard\...ib_hb.lis. Loading (...) (27 years ago, 27-Dec-97, to lugnet.robotics.handyboard)
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| | a1e1
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Chao, I want to ask what the difference is between the E1 and A1 chip. Greetings, Jan. (27 years ago, 27-Dec-97, to lugnet.robotics.handyboard)
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| | Newbie user of imagecraft c.
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Is the assembler of the ICC11 fully comaptible with the as11 assembler??? I have messages of error with that sentences: asm("PORTA: EQU $1020"); asm("PORTB: EQU $1004"); asm("PORTC: EQU $1003"); asm("HPRIO: EQU $103C"); asm("DDRC: EQU $1007"); (...) (27 years ago, 26-Dec-97, to lugnet.robotics.handyboard)
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| | Re: This List is dead???
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German, You were probably removed from the list after your email address generated bounces. Please write me privately if you wish to be added back. Fred In your message you said: (...) (27 years ago, 26-Dec-97, to lugnet.robotics.handyboard)
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| | Imagecraft Help.
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I buy the imagecraft compiler . I use the handyboard and can't make work any code . I try to set the TEXT, DATA and STACK parameters and nothing occur. Somebody can teel me if i miss something?? Thanks in advance. (27 years ago, 24-Dec-97, to lugnet.robotics.handyboard)
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| | This List is dead???
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I don't have received mail from 9/12 . That list is dead or wath is happen. I miss something?? (27 years ago, 24-Dec-97, to lugnet.robotics.handyboard)
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| | ZTX614 now available in UK
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I have at last secured a stock of this device and can offer it for One Pound sterling including first class post or airmail to Europe and zone 1 countries. Please send stamps, postal order or cheque to the value of one pound and it will be sent by (...) (27 years ago, 23-Dec-97, to lugnet.robotics.handyboard)
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| | Poloroid Sonar driver
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I got around to changing to the new driver and hardware configuration last night. Afterwards, I found that the sonar was returning negative distances periodically. Here is my interpretation, but I'm probably wrong. Peekword returns a signed integer. (...) (27 years ago, 19-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Control of MiniSC servo board
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A 9600 baud output driver is now available. Please see the Handy Board home page: (URL) your message you said: (...) (27 years ago, 18-Dec-97, to lugnet.robotics.handyboard)
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| | ir_xmit ?
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hello, again Im looking through emails from a LONG time ago (8+ months), and I come along a piece of code that uses the function ir_xmit_on(); and ir_xmit_off();. What lib do I need to be able to call this function? Have a MERRY christmas! phil (27 years ago, 18-Dec-97, to lugnet.robotics.handyboard)
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| | Kudos for Fred, Randy, and Anne, and a lib_hb.c tweak
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Hello, everyone: I want to express my appreciation to Fred Martin for the splendid job that he's done in designing the HandyBoard and devising the assembly instructions. I've built nine of the HandyBoards, and although I made a few mistakes along (...) (27 years ago, 17-Dec-97, to lugnet.robotics.handyboard)
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| | HandyBoard anb Logo ???
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Hi It's the first time I join this list, I was wondering if somebody could give me some biography or link about logo and robots. If I'm "off subject" or if you know a list more involved in this subject please let me know. I plan to use a handy board (...) (27 years ago, 17-Dec-97, to lugnet.robotics.handyboard)
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| | Dual Hall Effect Query
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Has anybody had any experience with the Micro 8SS27 dual hall effect sensor? I cant seem to get even the slightest response out of it! Do i need resistors of something in between the sensor and sensor port? Thanks in advance ___ IAN | |__ _______ (...) (27 years ago, 16-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Yet another ??
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I don't really see the problem Randy as long as you remember to power cycle the board after every ping (pain in the butt) but until you get the TL851 that will have to do! The translation below should help I hope P.S let me know how it works out. (...) (27 years ago, 16-Dec-97, to lugnet.robotics.handyboard)
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| | Control of MiniSC servo board
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I picked up a MiniSC servo controller to experiment with. It is driven via serial however. I saw in the FAQ that it is possible to use the Handy Boards serial port, but I don't want to have to download a program to the HB, disconnect the phone jack, (...) (27 years ago, 15-Dec-97, to lugnet.robotics.handyboard)
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| | interrupts and digital outs
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Greetings, First of all, thanks to everyone who helped me with my hardware problems. They seem to be settled now. Now for the fun stuff! :) Anyway, we are trying to implement a polaroid transducer and we need some socket that we can control the (...) (27 years ago, 13-Dec-97, to lugnet.robotics.handyboard)
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| | Re: trouble with memory
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well, the dim flashing of either yellow charge LEDs should not worry you. all this means is that the Handy Board is drawing some power. if you have the wall adapter plugged into the Interface/Charger board, simply switch it to "Zap" mode. now, onto (...) (27 years ago, 11-Dec-97, to lugnet.robotics.handyboard)
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| | trouble with memory
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Dear Fred Martin, I'm in deep deeeep trouble! A few weeks ago I first read about your handyboard and was very excited about it, because I was looking for a controller board for my autonomous vacuum cleaner. So I ordered the PCB from Douglas (...) (27 years ago, 11-Dec-97, to lugnet.robotics.handyboard)
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| | email change
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I know this probably isnt the right place to do this, but could you please change my email address from mdowney@eng.ua.edu to mdowney@dbtech.net Thanks....Sorry for the intrusion. Carry on! :) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | (no subject)
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EAS is now taking orders for the Finger Board, a very small 68hc11 micro controller board with memory and I/O selects compatible to "Handy Board". You can easily design custom interface circuitry for it by using standard prototype boards. It runs (...) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | Spectra sonar pin outs
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Here is the pin outs that you requested Randy. The board that you are talking about has a 17 pin SIP connector. What I did is remove this connector and solder a ribbon wire to the following pins: Signal Pin # (pin 17 and pin 1 should be labeled) GND (...) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Interrupt Programming
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(...) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Expected 141, Received 91, After 60 chars received
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Sorry, I'm running DOS 6.22 on an old Compaq 386 SX25. I've built one other board with this machine as the host, but I did download the latest IC zip file. (...) -- I am Bill of Micro$oft. You will be assimilated. Resistance is futi*&^%$#@ THIS (...) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Expected 141, Received 91, After 60 chars received
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what is your OS. If you are using Win31/Win95, try HBDL.EXE instead of DL. fred In your message you said: (...) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | Expected 141, Received 91, After 60 chars received
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I am assembling a Handy Board and I am getting the above error when I try to download the pcode_hb.s19 using dl (dl pcode_hb.s19 -port com1). I have just finished assembling section 6.0.4. Everything seems to have been working up to this point. I (...) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Recycled Sonar units
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fyi The bad news: I did the same thing only to realize that the sonar unit in the Spectra uses a custom IC to control the transducer. The receive or analog IC is the same as the commercial ones. I did find out the pin outs to the connector but (...) (27 years ago, 9-Dec-97, to lugnet.robotics.handyboard)
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| | Re: PCBS IN THE UK
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(...) Yes I am in the UK, full address detailed below. The price of my boards is £19-50 for the pair (Handyboard and Charger/IF) which includes first class recorded delivery postage to anywhere in UK or airmail to Europe and any other zone one (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: High current speed controllers
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Whoops, the url for my H-bridge design should be: (URL) previous version was missing the 'robotics' in the middle. Thanks to Mike for pointing that out. --Chuck (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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If you want to get into _all_ the details of tracking you might see if the local library has a copy of "Tracking Multiple Targets with Examples from RADAR" published by ArTech House. This book is crammed with densely worded (and annotated with math) (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: High current speed controllers
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As for your question about controlling a motor with a PWM signal versus an analog level controlled by a power transistor, the issue is efficiency and power dissipation. If you use a power transistor to set the voltage at the motor, it will have to (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: High current speed controllers
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I designed a high-current H-bridge to use with my Handyboard (the specs are at (URL) heat sinks on the MOSFETs the bridge can control 50A. (You can substitute fets to get more power). The known problems with this design so far are that the power to (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | re: New Expansionboard
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It looks good to me, I would be interested. Bill James | work: 972.480.2306 Product Test Specialist | Pager: 972.597.6201 w-james2@ti.com Precision Analog & Interface Department Polymath in Training | Have Spacesuit will Travel ---...--- Original (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Recycled Sonar units
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Hello All, I have salvaged two modules from Polaroid cameras. My question is ... the pin outs on the control board for the "Spectra" has 17 straight in a line pin ins and the other module and board from a Autofocus 660 has 8 straight in a line pin (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Anyone using the motor powewr header J13 ????
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Hi all, for designing reasons I wonder if anyone is using the Motor Power Header J13. Would anyone be pleased if we added an extra power connector to our expansionboard to supply J13 with more power ??? Thanks..... Tom (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | New Expansionboard
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Hi all We at the TWI (School of engineering, www.twi.ch) in Switzerland are using the Handyboard for several projects. One of them is a model car with ultrasonic sensors and model servos. Because of some limitations of the Handyboard we have built a (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: High current speed controllers
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Thomas, We are using the HB to control an AstroFligt 50A controller. The controller comes standard with a 20K pot to vary the PWM signal. What I did as substitute the 20K pot with a DallasSimi DS1803 pot. Its a 14 (I think) dip package that uses I2C (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Interrupt Programming
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We are building a mobile robot using the Handy Board and we desperately need help. To read into the sensors, we are programming using Interactive-C interupts. Would this be a good idea, and if so how do you do it as we are not quite sure. Are there (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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The phase difference seen by the sensors would be tiny at any practical frequency. Assume that you have the sensors a distance, D, apart and facing 'forward' on the robot. If there is a transmitting source at 90 degrees to the forward direction, the (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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(...) I confirm what David is saying! Once i worked on some kind of beacon using an PLL to find its frequency (we used a lm567) and it couldn't work properly due to the response time of the PLL. An alternate solution was to replace the PLL by a (...) (27 years ago, 7-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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(...) Hmmm...mmm... welllll.. if you are planning to use the GPUI series or equiv. as your detectors.. I think you may run into problems with attempting to detect critical time information about the modulated waverform. Namely, and I'm no expert on (...) (27 years ago, 7-Dec-97, to lugnet.robotics.handyboard)
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| | IR Disturbance?
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Hi, I'm trying to do the Trinity College contest for my science project. I'm using IR reflectance sensors to navigate the walls. But when I tried with the candle the robot went haywire. I think it's due to the IR eminating from the candle. How can I (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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I'm no electronic wizard which I think you probably would have to be to even consider what you are suggesting. Wouldn't it be simpler to just shield your sensors so that they 'look' in different directions? Have one look a little bit left and the (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | new version of 6811 Downloader for Mac
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Hi all, The 6811 Downloader program was starting to be flaky under System 8, so I fixed an odd serial bug. More like a work-around, actually. Anyway, if you use this program, and it is starting to flake out on you, download the new version. It's at (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | Re: High current speed controllers
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(...) Tom, Try this company , They have single and dual Forward/Reverse proportional speed controls for 4.8 - 140vdc at up to 220 amps and 3 hp. 500oz/in to 27 foot/pound packaged servos. I have a catalog from this company, great stuff but the price (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | Short?
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Hi, U13 (voltage regulator) blew on my Handy Board, so I replaced it. Somehow I think I shorted out the polyswitch fuse(F1) and the voltage regulator (shorted the pins that are closest to eachother. Now if I plug my HB in, the BATT, PWR, motor 2, (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | High current speed controllers
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Hello, I was wondering if anyone could recommend a speed controller circuit for controlling a 12VDC motor which could draw up to 25A. I'd like to use the Handy Board to control its speed. Cost is not a big concern but compactness is. I would (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | tracking an IR beacon
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Hello all - My goal: I'm trying to determine the feasibility of tracking an IR source with my Handy Board. My initial scheme calls for using two IR detectors (the ones with all the internal filters, etc, to provide a clean 5V output upon detection (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | PCBS IN THE UK
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RR> This is a note for people in the UK. I just ordered 2 sets of handy RR> board PCBs from Colin Barnard of Miranda Robotics. The boards RR> arrived quickly and appear to be good quality boards. In addition to this, as I've said a while back, (...) (27 years ago, 5-Dec-97, to lugnet.robotics.handyboard)
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| | IC 3.1 pcode sources
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(...) Hi all, The IC 3.1 pcode sources are available from: ftp://newtonlabs.com...code31.exe (win32 self-extracting archive) or ftp://newtonlabs.com...de31.tar.Z (compressed UNIX tar archive) If the general consensus is that the new PWM routines are (...) (27 years ago, 5-Dec-97, to lugnet.robotics.handyboard)
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| | Memory
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Does anyone know how to increase the handyboard memory above the standard 32K? I looked at the archives, but I didn't see any solutions. -Richard (27 years ago, 4-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Smooth PWM Routines!
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Hi Does anyone know where to get the pcode source for IC 3.1 ? If I can get my hands on a copy it shouldn't be too difficult to work the new PWM routines into it.... Thanks Scott (27 years ago, 4-Dec-97, to lugnet.robotics.handyboard)
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