 | | (canceled)
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| | Expansion Board problems
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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 truned the board on the LCD was just squares across the top, but the (...) (25 years ago, 10-Mar-00, to lugnet.robotics.handyboard)
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| | Hexapod servo supply
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Hi all, I am now building a hexapod robot. There is something wrong on the servos preformances. Actually, my robot weights 1.6kg, and by calculations my servos can support up to 2.5kg with normal operations. But when I connected the 6v dc supply for (...) (25 years ago, 10-Mar-00, to lugnet.robotics.handyboard)
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| | Any interest in spare 6.270 board parts?
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Some years back, I got a set of "hard to find" electronics parts for the 6.270 board (from PK Oberoi, for those who might know who that is). I never got around to building the boards, and I'm doing my robotics stuff with the RCX. So, I thought (...) (25 years ago, 10-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Sonar Assembly
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(...) Yup. Works great. However, you may want to use the attached version of the sonar sampling code in place of the code found on the HB web site. The only real difference is that this version takes three readings in rapid succession and then (...) (25 years ago, 10-Mar-00, to lugnet.robotics.handyboard)
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| | Sonar Assembly
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We're looking into buying a sonar ranging module from Acroname for use in our lab. Does anyone reccomend a particular offering of theirs? If we buy this unit: (URL) we will have to do to connect it to the HandyBoard are the wiring steps laid out on (...) (25 years ago, 10-Mar-00, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Assembly
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Eric, The pcode does load, or otherwise the beeper would not beep with the board reset. But you cannot communicate with your PC, which seems to be a very common problem with the newer and faster PC's. If you are using the freeware version of IC, try (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | Re: GP2D02/GP2D12 w/o expansion board
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When using the GP2D02, you are using port A, pin 5 and port A, pin 0. That's where the PA0 and PA5 terminology comes from. I wrote that particular piece on the Acroname website, so I apologize for not being more clear. And yes, it is necessary to (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | Re: sound generators
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Of course, the Handy Board has a piezo speaker built in. With the beeper and tone functions provided by IC, you can make all sorts of sound effects. You can make your robot sound like R2-D2 if you like. Also, Radio Shack sells piezo speakers. -- (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | RE: sound generators
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The Handyboard has one on it. Therfore, if you look in the manual's part's list, it should list where it's from. (...) This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Assembly
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it seems like the HB is not able to talk back to your PC. make sure the TxD signal starting from the 'hc11 is leaving the HB properly at the RJ11, reaching the interface bd, and then being cvt'ed to -10v to +10v levels out the interface bd on its (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | Re: GP2D02/GP2D12 w/o expansion board
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(...) Why does it make the ports useless for other sensors? If you need a pullup-resistor, you can still solder a 47k resistor directly to your sensor-connector between Vcc and Sensor in. Thus in my opinion the HB can be used more flexible without (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | HandyBoard Assembly
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I recently finished collecting all the parts for the handyboard and started assembly. I went all the way through the i/c board setup without a hitch. But when I got to assembling the serial comm circuit a few things went wrong. I assembled the (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | Re: light sensors
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(...) among the easiest of all light sensors to interface to the Handy Board and the interface itself is pretty much straightforward. All it is a a variable I've tried a pack I picked up at Radio Shack and they worked easy enough. However, the ones (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | sound generators
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hi, Does anyone have a good idea about sound generating source. We are thinking of using Piezo transducers but don't know where to get them. This is for our product design course where we are designing a singnal indicator for an antenna. We would (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | transponder ?
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Anyone knows where to buy a V-SCOPE transponder for accurate positioning of HB robot or atleast where to get its datasheet so that I can find whether it can be supported by the HB. thanx, Sunil. (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | RE: light sensors
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Hope this will help. Have you consider using Cds(Cadmium Sulfide) cells from Radio Shack? They are among the easiest of all light sensors to interface to the Handy Board and the interface itself is pretty much straightforward. All it is a a variable (...) (25 years ago, 9-Mar-00, to lugnet.robotics.handyboard)
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| | GP2D02/GP2D12 w/o expansion board
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|
From (URL) : "This example assumes that port PA5 on the Handy Board was connected to the input of the GP2D02 detector and that port PA0 on the Handy Board was connected to the output of the GP2D02 detector." What do PA0 and PA5 refer to? And when (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Can I use this light sensor?
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|
I don't know a lot of electronics, but have been tasked with figuring out which electronic components to purchase for a class which is going to use HandyBoards. I've been thinking of purchasing many of one particular infrared detector and using it (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Can I interface the Handy board to a PC to run there the robot's brain?
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|
(...) There are many applications where Interactive C won't work, some involving lack of memory, and some involving speed of execution. I ended up needing to switch compilers for both reasons, but mostly because of the speed. I do a lot of (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Re: ssc servo controller (fwd)
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|
hey everyone! i just got my ssc servo controller and i'm having trouble. I don't know how to connect it to the handyboard or expansion board. this is what i'm assuming, just let me know if i'm wrong, it connects with the modular jack to the PC (can (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | RE: light sensors
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Also, if you don't want your motherbot to have a "light-bulb" on it... You can get an infrared LED (or a few to make it brighter) and use the same concept Barry mentioned. To get the best result in sensitivity it way be wise to match the peak (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Sorry guys - Opppsss
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This is about the wireless thing? I was referring to the www.dvp.com product which is now the www.applied-wireless.com and not the www.connectionslab.com Gush!@ joema (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Can I interface the Handy board to a PC to run there the robot's brain?
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(...) I've tried their product before - the company is once the DVP.com. And it cannot transmit at 9600 baud which they tried to claim using their crystal caps. And the CS is not really that good. I am not quite sure now since it has a new name - (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Can I interface the Handy board to a PC to run there the robot's brain?
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(...) Another source for a RF interface: www.connectionlab.com Dirk (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Re: light sensors
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Hi, Light sensors are about the easiest of any type to hook to a HandyBoard. You can get inexpensive photo transistors at Radio Shack and put three of them in a configuration where one is pointing straight ahead and the other two are pointing about (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Can I interface the Handy board to a PC to run there the robot's brain?
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First, try this: (URL) that won't do it for you, and you can get I/O control over your PC, you can use the SPI port at J6 for some very fast transfers. There are people who have interfaced RF links to various boards, but the task does not appear (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | light sensors
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Hi, has anyone experimented with light sensors? My group is working on a mama and a baby robot this semester and would like to control baby's movement by using sometype of sensors. We are thinking of mounting sonar sensor to the mamabot so that it (...) (25 years ago, 7-Mar-00, to lugnet.robotics.handyboard)
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| | Can I interface the Handy board to a PC to run there the robot's brain?
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|
Hi, I am new on this, and I am not sure if can use the handy board to get the data from the sensors or to send the motor commands, but to send the data to a PC in order to process them, i.e., to run the program that controls the robot in a pc, in (...) (25 years ago, 8-Mar-00, to lugnet.robotics.handyboard)
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| | problem on "encoder?"
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|
Hi.. i have some problem on using the command "encoder", hope you can help me.. I use a servo as motor driver of the wheel, and I connected a encoder to HB analog-in port 6, then i load the file sencdr6.icb for counting, but my problem is how can i (...) (25 years ago, 7-Mar-00, to lugnet.robotics.handyboard)
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| | Motor LED's
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What does it mean when both LED motors are on? Is there a problem with the motor driver chips? I'm wondering because it always happens when I use the motor(1,speed) function, however when I use the fd(1) only one light goes on. I'm just curious if (...) (25 years ago, 7-Mar-00, to lugnet.robotics.handyboard)
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| | Re: new lock_process() function library for IC
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|
Hi, Everyone: My "ic" does not works. When I start "ic", it just stay there, doesn't try to communicate with robot. If I type "ic -port /dev/ttyS0", it oomes out something like" it free software,... type about...." Does anyone know what's wrong? (...) (25 years ago, 7-Mar-00, to lugnet.robotics.handyboard)
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| | testing
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testing! (25 years ago, 7-Mar-00, to lugnet.robotics.handyboard)
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| |
| | Re: ssc servo controller
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|
hey everyone! i just got my ssc servo controller and i'm having trouble. I don't know how to connect it to the handyboard or expansion board. this is what i'm assuming, just let me know if i'm wrong, it connects with the modular jack to the PC (can (...) (25 years ago, 7-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Encoder and Sonar
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|
Use the encoder routines from the HB web site: (URL) these, you can use any of the analog ports (i.e., you don't have to use ports 0 and 1 first). I have the sonar hooked up to the expansion board, too, so I have my encoders running on ports 2 & 3. (...) (25 years ago, 6-Mar-00, to lugnet.robotics.handyboard)
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| | Encoder and Sonar
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Hi.. I have some problems about using the command encoder and sonar, hope you can help me.. thanks.. In my project, i require one ultrasonic sonar, so i connect a wire from the exp. board to HB digital-in port 0. But when i checked the program of (...) (25 years ago, 6-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Need help with Hamamatsu P5587
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|
I've looked high and low for info on the P5587. - it's like the thing doesn't exists. I even went to Hamamatsu's web sight ... nothing! The only info I've found was a message in this newsgroup. Below is a copy of it. I haven't hooked mine up yet so (...) (25 years ago, 6-Mar-00, to lugnet.robotics.handyboard)
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| | Global Char Arrays
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Hi Everyone, Does anyone have a problem using global char arrays? I want to pack as many bits as possible into each char, but when I assign a hex value to any element in the array I never get that value. I always get the same junk no matter what (...) (25 years ago, 5-Mar-00, to lugnet.robotics.handyboard)
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| | Need help with Hamamatsu P5587
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Anyone know how to connect the Hamamatsu P5587 to the Handy Board(with an expansion) Schematic or pins-out would be great. If your sensor output port already taken, is there any other port on the handy board we can use to connect the Hamamatsu (...) (25 years ago, 5-Mar-00, to lugnet.robotics.handyboard)
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| | Need help with Hamamatsu P5587
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Anyone know how to connect the Hamamatsu P5587 to the Handy Board(with an expansion) Schematic or pins-out would be great. If your sensor output port already taken, is there any other port on the handy board we can use to connect the Hamamatsu (...) (25 years ago, 5-Mar-00, to lugnet.robotics.handyboard)
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| | P.W.M into something usefull....?
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Hi all you to all you guys in the HB world!, Found a old RC system for a air plane. Works fine with the 1 servo it had left, my question is how would one go about useing it with the HB? hooked one of the outputs to a analog port and got the P.W.M. (...) (25 years ago, 4-Mar-00, to lugnet.robotics.handyboard)
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| | new lock_process() function library for IC
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I have written some library code which allows user programs to effectively hog_processor() for a user-specified time interval, instead of the 256 msec allowed by hog_processor(). The new functions are: void lock_process(float seconds) ;locks out (...) (25 years ago, 3-Mar-00, to lugnet.robotics.handyboard)
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| |
| | Re: servo motors
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Hi, Try adding some delay time between turning the servo on and off. For example, 'sleep(2.0);'. Add the sleep(2.0) as follows: (...) sleep(2.0); /* wait for 2 seconds for servo to move */ (...) sleep(2.0); /* wait */ (...) Probably the reason why (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Converting voltage to resistance
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|
Voltage and resistance have no relation to each other - they are two different things. The HB analog inputs convert the voltage level applied to them to a digital equivalent, basically an A/D converter. So, you can apply your 0 - 5 volt signal (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
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| | RE: servo motors
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|
(...) Yes you are right, i just figured out too. i have to give at least 0.3secs for the servo to move to the required position. (...) actually the servo doesn't move when you turn it off. if you don't turn it off some small movements are observed. (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
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| | Re: servo motors
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|
(...) What is it supposed to be doing? When you say _it_ doesn't work, what exactly is not working? I'm not that familiar with the routines but it looks like you're shutting off the servos before they can move. I also believe once you turn off the (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
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| | Converting voltage to resistance
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|
This is a dumb electrical question. I am a programmer, and I still struggle with the electrical aspects of this hobby. How do I convert voltage output to resistance. I have an application that turns out 0 to +5 volts. However, as I read the (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
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| | servo motors
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|
hi all i connected a servo to the digital 9 port, downloaded the servo.icb and servo.c files. from the command line i can control the servo. but then i wrote the following very simple code, and it doesnt work. can anyone spot the problem. void (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
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| | Re: Exp. board Servo
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|
(...) Fortunately there is a direct relationship between servo-value and angle. Try different angles (for example 0 / 45 / 90 / 135 / 180 degree) and draw the diagram value vs. angle (for example with MS Excel). You will (hopefully) see a linear (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
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| | RE: HB's mA consume?
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|
Well, you can _greatly_ increase the efficency of the handyboard if you remove the 7805 regulator and replace it with a PowerTrends switching regulator (Digikey sells these among others). I would suggest you run three wires from the regulator to the (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
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| | RE: HB's mA consume?
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|
Thanks your answer Will, well, seems not easy to give a good use to a solar panel in the HB If I want to connect the a panel to the HB charging circuit, it must be 12V/500mA like the AC adaptor? or with less current (maybe 200 mA) , it can still use (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
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| | Re: HB's mA consume?
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|
If your calculations are correct, and your solar panel provides 40 mA, and you get maybe 6 hours of strong, useful sunlight per day, then I figure you'd need eight solar panels and three battery packs, minimum, to keep the HB running all the time, (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| | HB's mA consume?
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|
Hi, Today I have tested the time the HB can stay powered with his battery (just the board, without any other device attached), its work during aprox. 8 hs, so because the batteries I use are 600 mA, I believe that the consume of the board is around (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| | Re: HB memory capacity
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|
As IC loads each file, it reports how many bytes each one occupies. Just add 'em up. The IC interpreter is said to occupy approximately half of the 32 kB available, so if your code gets up to about 16 kB total, then you need to worry about trying to (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Exp. board Servo
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|
(...) Well, since it seems these values often vary from servo to servo I usually set them by using the knob function and scaling it down so I can visually see the numbers I'm putting into it and the result on the servo; turning it until it chatters (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| | Exp. board Servo
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|
Hi.. i have some questions about the exp. board and R/C servo, hope anyone can help me.. thanks.. From the "Expansion board software" homepage, it said that servo0=(value) is used to control the servo, may i ask how can i convert this value to (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| | HB memory capacity
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|
Hi all, A funny thing happened. i tried to download a file. IC gave the message it was downloading, but just when it finishes it gives me an error saying "lost synch with board". then i unloaded some files and redownloaded the file again. this time (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| |
| | Re: KIPR Kit
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|
Joe, As it turned out, the edge of the pulley was right next to and perpendicular to a long beam piece. We just used hot glue to glue it to the beam and held it in place until the glue dried and had no trouble at all. The pulley can't come out of (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| |
| | Re: KIPR Kit
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|
(...) These are what I also have been trying to use to break the beam, they seem to be the best choice. My question was more about how you mounted the sensor. I'm curious to know what piece people had glued the sensor to, and to see if they used (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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| |
| | Re: Servo controllers
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|
(...) If you can burn PIC processors yourself, try my page at (URL) and bonk on the serial servo controller project. I have PIC12C508 code there that allows you to control 4 servos with a single 2400 baud connection. The code is set to allow a (...) (25 years ago, 28-Feb-00, to lugnet.robotics.handyboard)
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| |
| | Re: Servo controllers
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|
Yes, there is a way. Check out the serial servo controllers at (URL) one of these that you use controls up to 8 servos, and you can chain a bunch of them together and go servo nuts. -- Will Bain P.S. -- I haven't yet tried these myself. I'm curious (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Problem on loadind Expansion board files
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|
The problem is simply that the new expansion board code supercedes a couple of functions in the old lib_hb.c (and possibly in lib_hb.icb, too; I can't remember). If you go to the HB web site, you'll find a new version of lib_hb that's compatible (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| |
| | RE: Solar charging and OWI Arm
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|
Whatever portion of the 40 mA that the HB requires for it's operation will "float over" the battery pack and be consumed by the board. The rest goes into the battery to recharge it. I haven't measured the current draw of my robot, but of course your (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Servo controllers
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|
I understand that a handyboard in combination with the expansion provides a total of 6 servo motor controllers. However, I need 12 controllers. Is there any other ways to achieve this other than buying another set of handyboard + expansion board? (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| |
| | persistent globals
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|
Hi all Has anyone worked on persistent global variables. In the manual it says persiststents can keep their value on reset conditions and multiple downloads. i declared persistant globals in my program and they do keep their value on reset (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Problem on loadind Expansion board files
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|
hi all, I had post a message about the exp board days before. Actually, the problem had not been solved yet. I post the following message that was shown when I was trying to load the exp files to the board. I don't know why this happen, since my (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| |
| | Re: Solar charging and OWI Arm
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|
Oops. I just realized I forgot to tell you how to connect the solar panel. Solar panels are almost always installed with a diode to block reverse voltage that would actually suck energy out of your battery when the sun goes down. For a small solar (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Solar charging and OWI Arm
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|
Any 12 V solar panel would help to add some juice to the battery, but the board probably can't live on just 40mA. The recommended adapter is 500 mA, which would charge the battery about a dozen times faster. Still, I have some solar cells just (...) (25 years ago, 27-Feb-00, to lugnet.robotics.handyboard)
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| | Solar charging and OWI Arm
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|
Hi, Has someone builded a battery charger for the HB, using a solar panel, is a 12 v / 40 mA panel enough for that?, and how to connect it?. Also, has someone tried the OWI robotic arm ? Thank You Jose Luis (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| |
| | Re: HandyBoard A/D converter?
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|
This calls for a signal conditioning amplifier. Since you're not worried particularly about slew rate (the handyboard won't do much more than 12khz sample rate) you can pretty much use any op-amp you want. Ideally you'd use a single supply one, set (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: HandyBoard A/D converter?
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|
The 68HC11 has references for the range of the A/D converter. In the HB design they are hardwired to 0 and +5. I believe the pin is Vrh at (URL) and is currently wired to +5. --chris prosser From the motorola manual: 2.2.7 A/D Reference and Port E (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| |
| | Re: colour sensor caliberation
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|
May I suggest you test your system for response to invisible light? You could shine an Infrared LED onto it to see what you read. There are also "UV Cutoff" Filters available at photography shops supplying color darkroom equipment (UV from the bulb (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: KIPR Kit
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|
Hi, In the kit you will find a number of pulleys about 1 inch in diameter. These are narrow enough to fit through the sensor. They have six holes in them and if they are on an axle, will give you 12 pulses per revolution - 2 pulses per hole. One (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | HandyBoard A/D converter?
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|
Dear Handy Board Masters, I am trying to use the handy board for some A/D conversions. The converter is set up on a 5 volt scale, the converter is an eight bit converter. Over this range I get a resolution of 19.5mV per Step. My application is (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | LUGNET spammed (was: Semiconductor Specific Search Engine)
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|
Hey, folks, (and Todd Lehman in particular) Did you catch this spam over in lugnet.robotic.handyboard? I hope that this trend doesn't continue. :^( LUGNET is one of the few Internet institutions I use that is nearly 100% content, and spam-free. (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard, lugnet.general)
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| | colour sensor caliberation
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|
Hi all I mailed the list a few weeks back about implementing a colour sensor. someone suggested using three photo resistors with red, green and blue filters over it. I have built the sensor with four photo resitors, three with the different filters (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | A/D converter
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Dear HB, I am trying to convert an anolog voltage from a thermocoupler to a digital value and display it on the LCD. I thought this could be accomplished by changing the high reference voltage V(rh) from the default 5V to 600mV to get the max (...) (25 years ago, 26-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Using ICC11 with the handy board
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John, The 1 KHz system interrupt is set up in the IC pcode, which you are not loading. Furthermore, the bootloader for the Handy Board is loaded into the first 255 bytes of on-chip RAM when you load pcode, and disappears on reset. It can't cause you (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Using ICC11 with the handy board
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Hi John, Using compiled programs with the Handyboard is not difficult, the steps used to download a compiled program are exactly the same as downloading the "pcoder" file in the Handyboard documentation. The compiled program is used instead of the (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Using ICC11 with the handy board
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Dear Sir or Madam, Let me preface this email by saying that I am an extreme novice at programming microprocessors so please try not to laugh to hard at my questions. I recently started an electronics project for which I chose to use the handy board (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | KIPR Kit
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Is anyone else using the Mobile Robot Development Kit from the KISS Institute? I was curious to see how other people had mounted the break beam sensors which come in the kit onto LEGO pieces. I've been having a lot of trouble getting them aligned (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Semiconductor Specific Search Engine.
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Semiseek now has the latest Semiconductor News and New Product Announcements from the Manufacturers of Semiconductor Equipment. Follow the latest Industry trends. Submit your Company Press Releases and New Product Announcements. See the most popular (...) (25 years ago, 25-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) you are confusing mAh capacity (the amount of energy stored in the battery) with how fast the batt can deliver the power. the two are not the same. the fuse is in the design because nicad cells can deliver a *DANGEROUS* amount of power if (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) CAVEAT: I'm probably full of it, but here goes.... My understanding is that a 12 V NiCd battery pack would not damage the HB, since the HB can handle up to 12 V. The problem is that in order to charge a 9.6 V battery pack, the HB built in (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) The self-resetting thermal fuse that's part of the HB ought to be just fine (see item F1 on the HB schematics). I think that if you use a 9.6 V NiCd battery pack with less than a couple thousand mAH capacity, you probably have nothing to worry (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Is there a general guide to what fuse I should have with a certian current? Please excuse some of this if it doesn't make sense, I am learning a lot of electrical concepts as I go... Would the internal resistance of the battery be shown if I measure (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) Yes. Exactly the right point. The two different things to woory about, are the mA/Hr rateing of the battery (which tells you how long a particular current can be delivered), and the _internal resistance_ of the battery, which limits the (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: L297
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(...) If you mean "bipolar" (like floppy head-motors) motors, than i think that i can help you :) -- sincerely Mike Schubert _ |_| Mike Schubert Tel.: ++49-351-3 18 09 15 | |__ interface business GmbH Fax.: ++49-351-3 36 11 87 | |_ | Naumannstrasse (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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(...) use a (...) mAh (...) Oh, you are missunderstands some "electrical" details :) You can use a battery pack with 9.6V and 2000 mA or more if you like, because the unit is exactly mA/h. It means you can get this current over a time of one hour. (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: GP2D02
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(...) Hi, I have a bunch of information about interfacing GP2D02's at this address: (URL) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | L297
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Has anyone ever used the L297 and L298 to run 4-phase stepper motors before? If so please reply to me beacause I'd like to ask you some questions... Thanks Sean (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Well, the battery pack I am using is rated for 1450 mAh.. so far.. I have not seen any probems... I was speaking of rf control earlier.. Thanks.. -me (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Hi, So a 12 volt 10xAA battery pack (brand new from bg micro) would be damaging to the board? David -----Original Message----- From: Ray Tang <raytang_1@hotmail.com> To: lugnet.robotics.hand...lugnet.com <lugnet.robotics.han...ugnet.com> Date: (...) (25 years ago, 24-Feb-00, to lugnet.robotics.handyboard)
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| | LCD functions?
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Hi all, Was wondering if there were some libs out there for contolling the LCD screen? Like scrolling with the knob, panning text; like haveing a Message move across screen etc.. Thanx -Roboman AKA-Alex (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Just some questions...
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Hi, Eric Davis <Eric_Davis@mindspring.com> wrote in message news:8EE380D7Cericda....63.236... (...) a (...) The recommended battery pack I ordered from DigiKey is rated 9.6V at 500mA. So, Don't over kill the board. And I think the motor chip L293D (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Strange problem of expansion board and handyboard
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It may be because you use the wrong lib_hb.c. There is one that works with the expansion board (one without digital(), analog() and raw_analog() defined, but the expsenc.c will define them so that the I/O port on the expansion board will work). It (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | GP2D02
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I can't seem to get any reading off of my GP2D02 sensor? I'm just wondering if I screwed up in connecting to the HB. If someone could tell me where they should be connected on the board that would be great! (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Strange problem of expansion board and handyboard
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it's all a software config issue, there's nothing wrong with your hardware. two questions: 1. what is the root library file that loads when IC starts up, and 2. what files are listed there? f. In your message you said: (...) d (...) s (...) I (...) (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Just some questions...
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Hey all.. I got my handyboard a few days ago.. and I have some questions.. 1) What is a good battery to use? I don't have 8 nicad batteries.. I use a R/C car 9.6V battery pack.. is there some specific need for certian mAh values? 2)What method did (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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| | Strange problem of expansion board and handyboard
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Hi all, I had a handyboard and an expansion board, they do not work together. I had definitely unzipped the explib into the libs directory and overwrote the files it need. But a strange problem occurs, when the board is downloading files at (...) (25 years ago, 23-Feb-00, to lugnet.robotics.handyboard)
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