 | | Re: Non-polaroid Sonar
|
|
Hi all, I'm now building the ultrasonic sensor from kam leang's page, did anyone interface it with handyboard?? Can anyone give me some advice on driving it? thanks Frankie Lai 97139371d@polyu.edu.hk (...) to bit_set and bit_clear is not actually (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Non-polaroid Sonar
|
|
(...) No, that's a very good question. It had me confused, too. The second argument to bit_set and bit_clear is not actually the index of a bit at all; it's a bit mask. For example, when you do bit_set( 0x1021, 3 ), the 3 becomes 0000 0011 in (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Polaroid setup w/ exp board...
|
|
John Wynne wrote: <snip> (...) Making the connection to the transducer by hand will very likely damage the electronics on the sonar module board. It says in the Polaroid instructions never to operate the sonar with the transducer disconnected. You (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharge Battery
|
|
(...) Actually, if you had stored them fully discharged then they would likely be as good as they day you bought them. That is the best way to store NiCds. However, if they are kept at a C/100 trickle charge to prevent open-circuit discharge, they (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Vector 2X driver
|
|
Yes, I run my Vector 2X is slave mode using only IC. I don't worry about missing the last bit since the precision of the heading is only +- 2 deg. It's very simple to code up. -Scott (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Non-polaroid Sonar
|
|
Thanks for your help :-D Just so I'm clear, ref pink book page 10-17. Does the "bit_set( 0x1021, 1 );" refer to bit 0 -EDG3B, and bit_clear( 0x1021, 2 ); " refer to bit 1 -EDG3A. This is what was throwing me, I always thought bits started at zero (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: windows nt and handyboard
|
|
I am also using the icwin from newton labs and that works fine also. Although I have not tried it under win2k, which I must do soon. --peter (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharge Battery
|
|
Im going to jump in here on this one and give an opinion. C/10 for a NiCd is a little much for a trickle charge. C/10 on NiCd's is usually considered more of a trimming type of charge following a higher charge rate of C or C/2 to put the bulk of the (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: windows nt and handyboard
|
|
(...) Actually I am working with Linux, but I gave it a try and it worked just fine. I tested with MS Windows NT Workstation 4.0 Service Pack 5. Just open a command prompt and use this ic-version. (URL) There is no admin-account needed. Perhaps you (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Polaroid setup w/ exp board...
|
|
Hello, I am trying to setup the 6500 polaroid sonar package, but am having a little difficulty. I've soldered a .1uF cap (electrolytic) into the C7 space on the ranging board, connected a 22g wire from J12 to input 7, etc., etc. My problem is in (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | windows nt and handyboard
|
|
Hi, Please, someone that is working with the handyboard and windows nt can tell me if do you have any problem in communicating the serial port with the handyboard? Do you think that the handyboard could be connected by serial port with windows nt? (...) (25 years ago, 16-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharged battery?
|
|
(...) OK, this is good to know. (...) Yes, *if* more drop is necessary, more rectifier diodes would be called for (i.e. relatively fixed voltage drop), not a series resistor (v=iR). (...) I didn't have any 5watt resistors handy, so I put a pretty (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharged battery?
|
|
(...) Hi Fred, I don't claim to be an expert on these, but what I have read leads me to believe that this may damage the cells if left on too long. For common NiCds (800mah AA' for instance) C/10 should really be considered a fast charge and not a (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: problem with sonar
|
|
A 470 microfarad electrolytic capacitor across the power leads to the sonar board will probably fix your problem. You can get a lot of current really fast out of one of those things. I remember charging them up and tossing them to one of my friends (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | problem with sonar
|
|
Hi.. I have a problem with ultrasonic sonar power supply, hope anyone can help me.. thanks.. I run my sonar well with the exp. board using transformer, but i failed to run it together with 2 sharp GP2D02 IR, i think may due to 2.5A surge of the (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Hitachi LM052-L
|
|
Jan, Do you have the expansion board? If so, have you tried removing it and seeing if the display works on the Handy Board by itself? What makes you think the display is damaged? What are the symptoms? Does IC still work, even though the display is (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Hitachi LM052-L
|
|
Hello, my Hitachi LM052-L display is damaged. Does anybody know where to buy a new one or equivalent in Europe ? Or how to test which part is damaged of the handyboard display system or the display itself ? Thank You ! Jan Luijk Netherlands (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Q: 10 dc motors on handyboard?
|
|
Does anyone know if handyboard can run more than four dc-motors? I want to be able to control a complex lego construction, with full control of all motors at once. The current flow shouldn't be to dramatic, I hope. I would also like to ask how it is (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharged battery?
|
|
hi dennis, well, it's just a plain C/10 charge circuit. but i was under the impression that nicad's aren't damaged by that. it's possible i'm wrong :-). any other battery experts out there? fred In your message you said: (...) ly (...) ut (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharged battery?
|
|
(...) I was guessing here - most chargers don't check for peak charge, since I didn't know if the Handiboard charger did or didn't... If the charger has a trickle charge of more than C/50 or C/100 then NiCds will be damaged eventually on a long-term (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Vector 2X driver
|
|
I just bought a Vector 2X electronic compass for a project. In looking at it the manual, I see that if the 2X is run in slave mode I can clock out data from it at my leisure using any digital pins available on the Handy Board. This could almost be (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharged battery?
|
|
no i disagree with this answer. the HB is designed to be left on normal charge indefinitely. the batts can get a little warm. if they are hot then something is wrong, but a little warm is nothing to worry about. when fully charged and with no load (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Non-polaroid Sonar
|
|
In the sonar code from the web site, the rising edge detection on timer input channel 3 (TIC3) is set like this: bit_clear( 0x1021, 2 ); bit_set( 0x1021, 1 ); According to the little pink book, address 0x1021 is the Timer Control Register 2 (TCTL2) (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharged battery?
|
|
(...) Ouch. You don't want to do that too much or you will torch (may have torched) your NiCds. NiCds do NOT like to be overcharged, it causes a problem called Voltage depression that many mistakenly call "memory effect". [snip] (...) Servos will (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Overcharged battery?
|
|
actually this is to be expected. with no load, the diodes produce no drop. if you're worried, try hooking a DC motor (or other real load -- light bulb, 10 ohm resistor, etc). across the servo motor supply and then measure the voltage. you should see (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Overcharged battery?
|
|
I've got a pre-assembled Gleason Research HB with expansion board, and have a couple questions. We've left it plugged in (on normal charge mode) for a week or so. I started to look at the specs to hook up a Futaba servo (6V), and found that with no (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Non-polaroid Sonar
|
|
Greetings all, I've just finished building Kam Leang's sonar circuit as published on his web site, and it all seems to be working well. I am having a problem interfacing it to the handyboard however. I'm not entirely sure how to set bits high and (...) (25 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Another assembly question
|
|
the fact that the two LEDs come on and then go off suggests that you *are* successfully putting the hc11 into download mode. it also happens that the hc11 TxD pin is in what's called "wired OR mode" during bootstrap. this means that it can only (...) (25 years ago, 14-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Another assembly question
|
|
I'm also at the point of trying to download to my partially assembled board for the first time. I'm able to put the board in to download mode (both led's come on for a short period of time then go off). When I start downloading the green led on the (...) (25 years ago, 14-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Servo Motor
|
|
Hi I need to know how to use the servo motor controller pins on the expansion board to control a servo motor urgently. Can anyone kindly teac me? Thank you very much. KCR OEI (25 years ago, 14-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | need help with HB batteries
|
|
Hi all, I have some problems about selecting batteries for HB hope you can help me.. I am building a mobile robot which contained 12 GP1u58x IR, 2 GP2d02 IR, 1 Polaroid Ultrasonic sonar and 2 hacked servos (seperate 6V supply), what kind of (...) (25 years ago, 13-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: ICB files
|
|
(...) You can get a MS-DOS / Windows-Version at: (URL) you find a useful Linux-version, please let me know. Dirk ---...--- Dirk Stueker Zietenstr. 36 26131 Oldenburg Germany Department of Computer Science University of Oldenburg Tel. & Fax: +49 / (...) (25 years ago, 13-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | ICB files
|
|
Anyone know where I could fine the AS11_IC.bat file? I need to do some assembly subroutines... (25 years ago, 12-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re:Expansion Board Problems Solved!!!
|
|
Haya Me again, After spending 2 and a half ours of probing, there was a bead of solder about the size of a hair and 3mm long bridgeing one of the multiplexeers pins to a pass through which was very close to it. After snapping the bead off, ureka! (...) (25 years ago, 11-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Expansion board problems
|
|
Hi, Just finished my exp board, checked over all connections twice and looked for shorts, installed it, turned on the board and attempted to download the exp libs. Wellll when I turnned the board on to start downloading the LCD was just squares (...) (25 years ago, 11-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Any interest in spare 6.270 board parts?
|
|
(...) I've had a number of replies to this, so thanks for your interest. If I'm unable to find a home for the parts, I'll post here again. -Tim (25 years ago, 11-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Hexapod servo supply
|
|
I had a very similar problem with my robot. When the servos are under high load (ie holding up your robot) and you try to move them all at once, the current drawn is quite large. I never actually measured how large, but large enough to destroy a 1A (...) (25 years ago, 11-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: IR Sony Input?
|
|
(...) The drivers and instructions for the Sony IR capability can be found on the official HB web site. I think it's in the Software Contributed section. -- Will (25 years ago, 11-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | Re: Expansion Board problems
|
|
You have a short circuit somewhere. The first thing to check is to make sure you have the capacitors in the right way. Some of them are polarized, and if you put them in backwards, they sometimes short out, and sometimes they blow up. The next thing (...) (25 years ago, 10-Mar-00, to lugnet.robotics.handyboard)
|
| |
| | IR Sony Input?
|
|
Handy Board Users, Thank you for your response a couple of weeks ago concerning the Reference Voltage on the Handy Board A/D converter. I ended up scaling the output of my thermistor as you suggested. I do however have another problem. I am (...) (25 years ago, 10-Mar-00, to lugnet.robotics.handyboard)
|
