 | | IC Problems
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My problem is in running downloader. I am supplying power directly to the board but all that it displays is top row of black boxes which are kind of faded. Then I run the downloader program and it says it worked but the welcome message doesn't come (...) (25 years ago, 10-Feb-00, to lugnet.robotics.handyboard)
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| | Re: some action around here
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Hey, Handy Board people! I don't know if anybody has noticed, but this group is dead, dead, dead! It's time to get things going. Maybe people have some neat projects going on to tell us about. I have a robot I'm working on that you can read about on (...) (25 years ago, 9-Feb-00, to lugnet.robotics.handyboard)
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| | hbtest.c / "testdigitals();"
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Dear Reader, I'm assembling a handyboard-kit form Acroname and I've reached the step of testing Digital Input Circuit. After loading hbtest.c I try to start "testdigitals();" and the following happens in the IC-Window: Downloading 24 bytes (adresses (...) (25 years ago, 9-Feb-00, to lugnet.robotics.handyboard)
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| | Re: LCD
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(...) ______ ______ ---...--- |_ _| |_ _| Kam Leang | |______| |______ University of Utah | |_ _| |_ _| Department of Mechanical Engineering | | | | | | | | MEB Room 2202 Salt Lake City, UT 84112 | |_|__|_| | | | (Tel) 801.581.7105 (Fax) (...) (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | LCD
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Does anyone know where I can my the whole LCD unit for the handyboard? Gleason sells assembled ones only. please reply km (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Battery Capacity
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(...) I am using 8-NiMH-AA-cells, 1100 mAh each, without any problems. For German Handyboard users: www.reichelt.de sells either single sells or a soldered pack of batteries. Actually you can even get upto 1700 mAh-cells (no experience with those (...) (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | [OT] Re: Wav2Asc
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(...) PE Micro has a program that converts binary into S-records. (URL) you may want to look into a program called Sox. Sox converts just about any sound format into just about any other. You could, trivially, convert a WAV file into a pulse code (...) (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Scott Edwards Electronics web site is: (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Battery Capacity
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I suppose that maybe your NiCd cells are just nearing the end of their useful life. Either that, or you have a wiring problem somewhere in the power circuit. Also, it's generally not a good idea to mix different types of cells (different capacities) (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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where would i get a SSC? (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Battery Capacity
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Hi all, Ive been having problems with my bots supply for a while now. The problem is that the motors (LEGO 9v ) seem to be drawing too much current. whenever my bot changes direction or trys to accellerate from a standstill, the board resets. Im (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Wav2Asc
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Im after a program to convert a Wav sound file to Ascii to be able to burn it to eprom. Can any1 help ? (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: DC motor
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Its sound like your motor is drawing excessive current, thus resetting your Handy Board. You might want to beef up to a higher capacity battery or you can try running your servos off an external power source. Good Luck. (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Need a clock signal to interface encoder chip
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I am trying to interface an HP quadrature-type encoder to the handyboard using the HP HCTL-2016 encoder chip. The problem is that the chip requires a clock signal to synchronize the data latching and transfer functions and I am not sure which type (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: DC motor
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Thanks for your reply, but before i remove all the elecrtonic part inside the servo, i have cut out all the mechanical part, but the problem still happen, do you know why ?? thanks.. (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Thanks for the tip! I am new to this, and I am really anxious to build robot with legs. I don't know much about PIC (yeah, what does that stand for anyway? :-p), but knowing that PIC is what I need, I can at least get start on finding books on (...) (25 years ago, 6-Feb-00, to lugnet.robotics.handyboard)
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| | Re: DC motor
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It sounds like you might have a mechanical, rather than electrical, problem. Servos typically have some sort of stop nub on the gears so that they can't rotate past a certain point. If you don't cut off the nub with a hobby knife or saw, the motor (...) (25 years ago, 5-Feb-00, to lugnet.robotics.handyboard)
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| | DC motor
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Hello.. i am a beginner of using HB and i have some problem hope you can help me.. thanks.. I have hacked a servo motor to become a DC motor (by removing all electronic parts inside the servo) and plugged the "motor" into the motor port. but when i (...) (25 years ago, 5-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hall effect sensors
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(...) Oops, I jsut realized that your question was about HB, and I was replying about Mindstorms. I don't know whether this Hall Effect sensor will work on HB. Sorry. (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hall effect sensors
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(...) Knudsen in his book (p 223) uses Digi-Key part number DN6847SE-ND, which, he says, is "sticky" in the sense that it remains set until explicitly reset. I have no experience with it. (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Good source for Servos
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(...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard, lugnet.robotics)
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| | Good source for Servos
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Hi, Can somebody tell me where I can buy servos cheap? Thanks Kalyan Mulampaka Software Engineer e GE Information Services ___...___ Ph#: (770) 698 4436 (O) (770) 390 0887 (R) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard, lugnet.robotics)
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| | Re: hexapod walker
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(...) An excellent site Rien! I hope you get the SPO256 code and diagram posted soon. Thanks, - Nick - (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Personally I use a Scott Edwards Serial Servo Controller (model 1, there is a new one out now) - SSC. On the handyboard web site is a program to control this serial device from the handyboard, which means you can just set each leg position and let (...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Have a look a (URL) is my hobby robotics site. Currently I have a Hexwalker running with a HB. The 12 servo's are simply controller by a PIC 16F84. This PIC is controlled by the HB through an async interface. This makes it lightweight on the HB, so (...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | hall effect sensors
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hi all i am thinking of buying a hall effect magnetic sensor. what is the model compatible with the HB and what is its sensing range. cheers fazal (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Sonar and the handyboard
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My guess is that the Polaroid unit will only be able to drive transducers with electrical characteristics very similar to the Polaroid transducer. The transducer functions mainly as a capacitor, and in between pings, it is kept at a couple hundred (...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: GP2D02?
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Yeah, go to Acroname Inc. at (URL) or Patrick Hui/The Robot Store at (URL) Ray Gansler Mike (K1-Fh/ESC1) <handyboard@media.mit.edu> wrote in message news:4B9D9ADDF526D21...kes.com... Has anyone found a source for the GP2D02? -----Original (...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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COOL! How do you control 8 servos? I have the expansion board and there are only 6 servo connections there. What other port did you use to control the other 2 servo? Or do you use the expansion board at all? I am looking for a way to add two more (...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: HB and Acceleration
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Actually, I live in Wisconsin, and I heard about the "Rockets for School" but no one in my high school knows anything about it. I saw it on the news. . . Now that I am in college, and I still want to try launching something up in the sky! Possibly a (...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Sonar and the handyboard
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I need to attach an underwater sonar ranger to the handyboard but I cannot figure out how. Does anyone have any experience with this? One question that I have is if sonar transducers other than the polaroid 7000 unit can be attached to Polaroids (...) (25 years ago, 3-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Analog/Digital IO
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Maxim sells a chip that I have connected to the parallel port on my PC and it seems to work well. I got the design from an article in Dr. Dobbs. The article was on using Linux to collect data. The author of the article has a book which has the (...) (25 years ago, 3-Feb-00, to lugnet.robotics.handyboard)
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| | RE: Analog/Digital IO
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Is that how it works? I remeber a time when some students were using a joystick for a project and recall them dealing with some sort of PWM. As to whether they were the joystick position signals, I'm not entirely sure. (...) This message is for the (...) (25 years ago, 3-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Analog/Digital IO
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hey -- how about a game card! that gives you digital (joystick buttons) and analog (resistor readings). fred In your message you said: (...) (25 years ago, 3-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Analog/Digital IO
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(...) For digital values, you can use a parallel port card, or even handshake lines on a serial port. For analog, you can again use a parallel port, and hook up an external A/D chip. As long as you're not trying to get too many bits of resolution (...) (25 years ago, 3-Feb-00, to lugnet.robotics.handyboard)
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| | Analog/Digital IO
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I know this question does not really relate to the handyboard, but does anyone know of a cheap PCI or ISA card for a PC to read analog or digital values? Thanks, Mike Reiling (25 years ago, 3-Feb-00, to lugnet.robotics.handyboard)
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| | stepper motor sequence [DAT]
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hi all i was trying to connect a uni polar stepper motor with the hb. i was using the stepping sequence given in peter harrison page. A B C D 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 This sequence means that each coil will be energised one by one. and at no (...) (25 years ago, 3-Feb-00, to lugnet.robotics.handyboard)
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| | Re: 12V servo motors
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Since the HB battery is only 9.6 V, a 12 V motor would most likely draw too much current and pop the circuit breaker (or worse). I don't see why you couldn't power the servos with a separate 12 V battery, though. The HB expansion board is all set up (...) (25 years ago, 2-Feb-00, to lugnet.robotics.handyboard)
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| | 12V servo motors
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hi, The HB FAQ says to use 6V servo motors connected to the batt supply with a couple of series diodes to reduce the voltage. can i use 12V servos instead? cheers fazal (25 years ago, 2-Feb-00, to lugnet.robotics.handyboard)
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| | RE: More servo stuff
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Hi. We have a problem with servo as well. When we test one servo motor, it works just fine. But when we test more than one, the speed of each servo decreases. Does anyone have similar problem? Thanks for your help. Damee Choi (25 years ago, 1-Feb-00, to lugnet.robotics.handyboard)
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