 | | Re: questions on optical encoders
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On Sat, 18 Apr 1998, Paul wrote: Might I suggest taking a look at US Digital's optical encoders? (URL) have some low cost variants that we used and were very pleased with. I am looking at the data sheet for a "SP-16" <snip> (...) It is 1.78" in (...) (26 years ago, 18-Apr-98, to lugnet.robotics.handyboard)
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| | questions on optical encoders
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Hi, everyone Hi, i am currently doing a thesis topic "Micromouse project". And, I am going to purchase an small optical encoder to measure the speed, acceleration and distance that my mice has taken. My mice is driven by a DC motor, so the opti. (...) (26 years ago, 18-Apr-98, to lugnet.robotics.handyboard)
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| | Re: polaroid sonar problems
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Hi all if anyone has problems using the 6500 series for distances below 35cm by using the binh signal I have a possible solution to the problem. We also expierienced problems using the sensors for distances between 15cm and 40cm. We finally found (...) (26 years ago, 17-Apr-98, to lugnet.robotics.handyboard)
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| | ds1233
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Help: I am short one ds1233 for my freshman engineering class. Is there anyway to jumper around this part. I understand that it is in the circuit to prevent the cpu from losing it's mind on low voltage. I would be willing to put up with reloading (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | polaroid sonar problems
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We continue to progress on our first robot here at Northwestern but have run into a problem with our sonars. We have run out of solutions to try and would appreciate any help from people experienced with the polaroid sonar modules. Our sonar is (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | Writing in port D of the Handy Board
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Hello, We've just read the Web page "Additional Digital Inputs & Outputs for the Handy or Finger Board" at (URL) we don't know how to write in the port D (ie D0..7 ) in order to have more digital outputs. Please could you tell us how to do ??? (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Using Port D of the Handy Board
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In your message you said: (...) ve just read on the Handy Board FAQ that it was not possible. So, where is the truth ??? where in the FAQ does it say that it's NOT possible? If you look at the link (URL) explains how to use Port D as outputs. (...) (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | Using Port D of the Handy Board
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Hello everybody, A few month ago, someone told us that we can use port D as an ouput. But, we've just read on the Handy Board FAQ that it was not possible. So, where is the truth ??? Help, help, help !!!!!!! We need 8 ouputs (and also 8 inputs) to (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | HandyBoard Buffalo V1.0 - Update
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Hello again, Fred G. Martin had informed me that I forgot the assembly code for the Buffalo monitor. It is now on the page, (URL) BUF_HB.TXT Charles Hacker School of Engineering Griffith University - Gold Coast PMB 50 Gold Coast Mail Centre (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | HandyBoard Buffalo V1.0
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Hello All, Some time back I sent a message to the HandyBoard list to enquire if anyone had a machine code programming monitor operating system for the HandyBoard, similar to the Buffalo Monitor on Motorolla's EVB boards. (The Buffalo system allows (...) (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | Where to buy Speedwire ?
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I am looking for a place to buy "Speedwire" as mentioned in Mobile Robots Inspiration to Implementation book. Thank you, -Pandit (26 years ago, 16-Apr-98, to lugnet.robotics.handyboard)
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| | Miniboard, ICC11, and printf
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I have a miniboard and I am using the free version of ICC to program it. I did replace the standard crt.s with the one for the miniboard, but I am unable to get printf to work. Actually, I am unable to download programs that use printf. The sample (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | mem command &...
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1. The freeware version of IC had a command ('mem' if me recollection is correct) that returned the amount of free memory in the HB, but that command doesn't seem to be available in the most recent commercial version. is there some other command (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | Handyboard simulator
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Hello, I was wondering whether anyone knew of a Handyboard simulator. I am working on a group project where each person develops code in C using IC for the Handyboard. The problem is that we have only one handyboard and thus only one person is able (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 64K RAM?
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This is a common question, so I went ahead and put an answer in the FAQ. Take a look at: (URL) what it now says: ---...--- IS IT POSSIBLE TO EXPAND THE HANDY BOARD'S MEMORY TO 64K? Actually, this is hard to do. Here's why: 1.There is a compromise in (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | 64K RAM?
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Hello, I wonder if anyone knows if I can expand the Handyboard's memory to the maximum of 64KB simply be wiring in a 128kb SRAM (A16 unused so it becomes 64kb) with D0-D7 to the data bus as usual and A0-A14 to the existing RAM socket and A15 from (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Problems connecting 2 Handy Boards
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The code found at (URL) was intended for connecting a Handy Board to the host PC. It is possible to connect two Handy Boards, but you must use a NETWORK style RJ11 cable, rather than the usual TELEPHONE style RJ11. See the FAQ, under entry "The R11 (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | How work the downloader?
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I'm still problems with two boards. I'm still can download code , but never "boot". That code work in all others board.I can't make run off course, IC. My answer is : The downloader check every byte it download to the board from the memory??? Or (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | RE: Problems connecting 2 Handy Boards
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-----Original Message----- De: Ecole Louis de Broglie - Promotion 1999 <promo99@ecole-debroglie.fr> Para: handyboard@media.mit.edu <handyboard@media.mit.edu> Fecha: Miércoles 15 de Abril de 1998 06:27 Asunto: Problems connecting 2 Handy Boards (...) (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | Problems connecting 2 Handy Boards
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Hello everybody, We tried to link two Handy Board, via the RJ11 computer connectors, in order to make them communicate with the code we found at (URL) . But, when we plugged the cable, the Handy Boards began to smoke next to these connectors. Does (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | Handyboard simulator
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Hey, I was wondering whether anyone knew of a Handyboard simulator. I am working on a group project where each person develops code in C using IC for the Handyboard. The problem is that we have only one handyboard and thus only one person is able to (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | ack
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Nevermind my last message. I had a phone cable that was dodge. Out of curiousity...Is anyone on this list familiar enough with C to make a program that you could input wheel diameter and wheel base along with the weight of the robot and reference (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | downloading
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Hey. I just got a couple more handyboards and both of them had exactly no power in them. Ive let one charge for about 12 hours and then tried to use the Initialization app on it and it wont synchronize with the board. Does anybody know what im doing (...) (26 years ago, 15-Apr-98, to lugnet.robotics.handyboard)
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| | Re: AS11_IC
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it's there in the software section: (URL) your message you said: (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Big adapters?
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In your message you said: (...) because if you put it into zap mode, you'll fry your batteries -- unless you've switched to a much higher amperage pack. (...) no, because you can't send that much current down the RJ11 cable. unless your robot draws (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Servo Routines
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Hi all, Futaba servo's chatter when the pulses are not updated quickly enough. At best, this produces a slight buzz, at worst they 'hunt and seek' their position a tiny bit. I don't know how fast the HB routines update the pulse, but standard (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Servo Routines
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I have noticed in my experiments that the HB servo routines don't interact well with the LCD. In order to get them to work reliably in my Handyboard library I redesigned the way the LCD driver worked. Unfortunately for you that library was built for (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Big adapters?
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Hello all, I'll just briefly restate my earlier questions for ease of responding: 1. Why are we encouraged not to use big adapters (>1A) for the HB? Is it because of the charging circuit, or does it fry the board? 2. Can I plug a big adapter into (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | AS11_IC
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Hi to all ! Help, where can I get the AS11_IC for PCs (to produce *.icb files) ? Thanks for all response. (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Re: analog encoders
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(...) Mar, I ran into these warnings when I was modifying sencdr0.asm. They do in fact show a bug in the assembly code, but it's harmless. If you like gory details, here they are: Near the beginning, the file defines these constants: BASE EQU $1000 (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Are these codes proprietary
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Hi: I was wonderig if the codes such as analog(), digital(), process() etc are proprietary. If not how can I see the C/assembly version of them. I need them to learn how Motorola 68hc11 assembly works and also I am a bit curious. Any help would be (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Are these codes proprietary
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Hi: I was wonderig if the codes such as analog(), digital(), process() etc are proprietary. If not how can I see the C/assembly version of them. I need them to learn how Motorola 68hc11 assembly works and also I am a bit curious. Any help would be (...) (26 years ago, 14-Apr-98, to lugnet.robotics.handyboard)
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| | Are the codes proprietary
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Hi: I was wonderig if the codes such as analog(), digital(), process() etc are proprietary. If not how can I see the C/assembly version of them. I need them to learn how Motorola 68hc11 assembly works and also I am a bit curious. Any help would be (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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| | Re: re-download problem
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Try turning off the board and holding down the start button while re-powering the board. Hope it works for you. Terry P. Gathright ---...--- (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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| | Re: re-download problem
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Hold down the START button while powering on. This will prevent the board from running main(). Fred In your message you said: (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Servo Routines
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When I see the servo chatter, the knob is returning the same value. In fact I can just set a constant unchanging value without using the knob and get the chatter. I've tried this on two HB's and get the same results. The servos are small Futabas. (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Servo Routines
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can you ascertain whether the knob is returning the same value every time through the loop? i wasn't clear if "even when the knob is not changing" meant just that you weren't turning the knob, or whether you were sure it was always producing the (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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| | re-download problem
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I forgot to unload the program that I was running on my handyboard before I quit out of ic. and it won't let me putting the board on bootstrap mode. as soon as I power up the board, it starts running the last program. can anyone tell me how to clear (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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| | Servo Routines
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Question. I've been playin with the servo routines available from the HB page. One thing I've noticed. The servo's seem to chatter a lot. Is this normal. A routine that does nothing but loop, read the knob and output a value based on the knob to the (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Vector V2x Compass
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Hi Armeen, I have the same problem as you. I thought my HB was faulty or it doesn't work with the 68hc11E processor I use or something. So what I did was: I wrote a very simple IC-Routine. You have to load this program with "load v2x.c" and call the (...) (26 years ago, 13-Apr-98, to lugnet.robotics.handyboard)
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