 | | Re: IR (formally 6.8nF cap)
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there's not really a big diff in the performance of the ir sensors given 38 or 40 khz. so either is fine, +/- a few khz just doesn't really matter, you have to detune 10 khz or so for it to matter. there is an issue whereby there are two different (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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| | IR (formally 6.8nF cap)
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I have asked for confirmation as to which frequency (38 or 40 KHz) is correct. As my current components should give me a frequency of 39KHz (1/3.883KOhm*6.6nF) I should be able to use either with out to much problem. I am thinking of using the (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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| | IR Transmission/Reception
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Can any body confirm what frequency the IR transmission/reception system on the HB should be working at ?. The documentation (HB Manual) states that the HB has a 38KHz system but the Assembly Manual states for testing the transmission circuit you (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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| | Re: "3D"
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[Steve Stevens] spake unto the ether: (...) I believe that IC variables must start with a letter a-z, A-Z, $ or _. Starting with a numeral 0-9 is illegal, yes? *Rich* (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
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| | "3D"
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I see the variable "3D" used in several pieces of code. What is it and why can't I get my IC to recognize it? I keep getting a "parse error close to D." message when I try to use it. (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Robot positioning
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William - For my group project, we bought sonar transducers and built circuits for them. Our original recieving circuit is digital rather than analog as we were only going to have one. The circuits we used are on our group's website on our (...) (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
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| | Re: 6.8nF Capacitor
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I don't suppose you know what the formula is for calculating the value of the frequency ?. 1/(R4*C6) possibly ?. This equation gives 38396Hz (38.4KHz) which means that my 6.6nF caps give 39560Hz (39.6KHz) which is closer to 40KHz than the 6.8nF (...) (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Robot positioning
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Hi Kate, I just want to know how/where to get a sonar transmitter/reciever pair with different frequencies for robot positioning. Can sonar module from Polaroid do that? Thanks, William (...) on (...) (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Robot positioning
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If you want to return to "base," all you need is a beacon of some sort. For example, you could use CdS cells (or anything that finds EM in the visible light/low IR range) and a lightbulb (or series of lightbulbs, like a strand of Christms tree (...) (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
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| | Melissa Virus
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I have found the source and fortunately it is not from a HB site. It was from the Washington and Lee University EE school. (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
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| | Robot positioning
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Hello all, I am currently building a H board/exp board based robot that has (will have) the following sensors: Diffrential drive wheel encoders, hamamatsu sensors combined with the software from the H board site for motor control and distance counts (...) (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
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| | Follow-up to Virus
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It is amazing what can be recovered off a disk, with the right tools. This is the data on the virus files. The document, final1r....doc, within the zip file 478eti.zip is the culprit. "This file was quarantined.f M The file (...) (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
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| | File Contains Virus
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There is a file located on one of the HB sites that contains the Melissa W97 virus. It begins with 478... I am sorry that I can not give you more info as the virus scanning software removed the file, but if you maintain a server with HB files on it, (...) (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
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| | Re: four polariod sonars
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Hi, I read the design a while back... Don't you just control the multiplexor circuit on the handyboard and then call the sonar routines? All sonar use the same routine, aren't they? -- Ray JULIAN REYES <handyboard@media.mit.edu> wrote in message (...) (24 years ago, 11-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Handyboard startup problems
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Yes, I encounter something similar. Do you use servo on your board? I also have some trouble with the motor ports. I am not sure what causes it. I also have trouble with the motor ports. When I run the motor at 50% power (back or forward), both red (...) (24 years ago, 10-Jul-00, to lugnet.robotics.handyboard)
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| | H2000 optical position sensor
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Hi, I am planning to build a position detector with a H2000 chip. The chip is used in several optical mice, for example the H2000/0006 can be found inside the Microsoft IntelliEye mouse. I sill have difficulties in finding the manufacturer and the (...) (24 years ago, 10-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Handboard supplier?
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Try Patrick Hui at Robot Store ( (URL) or for info emailto:info@RobotStoreHK.com ) he sells assembled boards at reasonable prices. (...) (24 years ago, 10-Jul-00, to lugnet.robotics.handyboard)
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| | serial communications HB - PC
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Hi! I need to know how implement a serial and asyncronous communication (send and recieve data between my PC and my HB) through the computer conector (not through the spi!), Does somebody know how can i do it or what are the hb serial commands or (...) (24 years ago, 9-Jul-00, to lugnet.robotics.handyboard)
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| | four polariod sonars
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Hi everybody! I´m working in mi mobile robot and for the navigation i want to connect 4 polaroid sonars to my HB, has anybody developed any design? I found in the HB site a multiplexor circuit for connect 4 sonar by adam cox, but i can´t find more (...) (24 years ago, 9-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Memory erased
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Jose -- Yes, I think that's normal. -- Will (...) (24 years ago, 9-Jul-00, to lugnet.robotics.handyboard)
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| | Memory erased
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Hi, Is it normal that any time I start IC, and the HB sinchronize with it, all the programs in the memory are erased, and there is only the ones the IC download at that moment (the ones in lib_hb.lis) ? If not, what can be the problem? If I use the (...) (24 years ago, 9-Jul-00, to lugnet.robotics.handyboard)
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| | Handboard supplier?
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We are looking for assembled handyboards with the LCD detachable. Pricing and shipping means are requested for F.O.B. our doors in Waterloo, Ontario, Canada. The units will be used for student projects. Thanks (24 years ago, 7-Jul-00, to lugnet.robotics.handyboard)
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| | Any work on using normal IR readings?
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Has anyone done any work on using simple IR sensors as (short) range-finders / proximity detectors? Basically a reflectance sensor, but with a discrete infrared emitter and detector. One of the problems you notice right away when using these is that (...) (24 years ago, 7-Jul-00, to lugnet.robotics.handyboard)
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| | Re: translation
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Loose translation (by Gary Livick, not known for my language skills, or any skills for that matter): Hi. I'm very interested in knowing how one communicates with an hc12 via the serial port. I'd be grateful if someone could send me all the (...) (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | (no subject)
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hola: estoy muy interesada en saber como puedo comunicarme por el puerto serial a partir del microcontrolador 68hc12 de motorola. les agradeceria se me pueden enviar toda la informacion al respecto. gracias por su atencion. (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | Reset on the HB
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Could someone tell me where the reset button refered to in documents for the Handy Board is? I know the master reset is the on/off switch. TIA. Steve (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | Re: 6.8 nF Capacitor
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The 6.6nF was the capacitance measured for the two 6.8nF capacitors that I have managed to get (rated as 10% tolerance). The problem is that the parts listed for the HB are 2% tolerance 6.8nF capacitors which gives a lowest value of 6.6664nF which (...) (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | Re: 6.8 nF Capacitor
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(...) Yes. Capacitors have typically very loose tolerances anyhow; usually 20% unless you buy specifically selected samples in a tighter tolerance. The 6.8 is a standard value while the 6.6 you have is likely a specially selected non-standard value. (...) (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | 6.8 nF Capacitor
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Can any body tell me if a 6.6nF capacitor will do to replace the 6.8nF in the IR Transmission circuit (Fred?) ?. Thanks in advance. John Hatton (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | HB to Comms board cable
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Is there a 'best' length for the telephone cable between the HB and the Comms board. I am about to start construction and I was wondering if there was a maximum length for the cable and if a particular length was recommended. Thanks for your help. (...) (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Connect HP 48GX
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Gruezi/ Hi, (...) Instead of using the serial port, how about using the HP4**x IR port? I recall there being HP4**x programs that emulate IR remote controls which should be easy to modify (?) for general-purpose communications. Marco A. Assfalk de (...) (24 years ago, 6-Jul-00, to lugnet.robotics.handyboard)
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| | Handyboard startup problems
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Hi all, I'm having some problems with me previously functioning handyboard. I'm using a standard board which has worked fine for nearly a year. Recently it didn't get any use for awhile and the batteries ran down. After charging them for 18+ hours I (...) (24 years ago, 5-Jul-00, to lugnet.robotics.handyboard)
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| | Re: 6.8nF Capacitor
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(...) Not knowing what parts the HB uses, but assuming it is something like a polystyrene cap, then I think I have some in my component drawer. Send me your address, and I'll stick a couple in the post. Best Wishes (24 years ago, 5-Jul-00, to lugnet.robotics.handyboard)
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| | Re: VECTOR 2X
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This is my routine to use the Vector 2x with my board (see link below my name) with an I/O expansion board connected. You will need to change the I/O port #defines to work with the Handy Board I/O ports on your expansion board, but other than that (...) (24 years ago, 4-Jul-00, to lugnet.robotics.handyboard)
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| | Re: VECTOR 2X
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Hi Robert, It has been over a year since I have had the vector 2x connected to my board but if you follow the instructions that Tom Brusehaver posted in contributed software everything should work ok. You will have to connect to one of the motor (...) (24 years ago, 4-Jul-00, to lugnet.robotics.handyboard)
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| | VECTOR 2X
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Hi all, I am currently fabricating my new HBoard based robot and have only gotten to the design stages. I have ordered a Vector 2x but haven't recieved it yet. I am not particularly well endowed with electronics or assembly language skills (very (...) (24 years ago, 3-Jul-00, to lugnet.robotics.handyboard)
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| | HB Batteries
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I am going to use individual AA cell batteries to power the HB mounted into two 4 cell holders. My question is this, if I use NiMh cells (1300mAh) rather than NiCd cells (800 - 900 mAh) how would this effect the HB ?. My current understanding is (...) (24 years ago, 3-Jul-00, to lugnet.robotics.handyboard)
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| | 6.8nF Capacitor
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I have found that Maplins have only stopped stocking the 5% tolerance caps, they still do 10% versions. How critical is the capacitors value ?. I could probably try testing a batch of them in the shop using a multimeter but I couldn't guarentee how (...) (24 years ago, 3-Jul-00, to lugnet.robotics.handyboard)
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| | 6.8nF Capacitor
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I have got all the parts for building my HB except for a 6.8 nF 2% capacitor (component C6). Maplin Electronics have stop doing it and I am not sure where to try next. I am in the UK, does any body know if I can change the resistors in the infrared (...) (24 years ago, 3-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Sharp GP2D12-Sensor under sunlight?
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I have three GP2D12s running on a Handyboard and they seem to run quite well in sunlight. In overcast or indirect light (shade) their performance seems identical to indoor light. In bright sunlight there seems to be a possible shortening of the (...) (24 years ago, 1-Jul-00, to lugnet.robotics.handyboard)
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| | Sharp GP2D12-Sensor under sunlight?
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Hi, I am working on a robot with the HandyBoard. I am thinking about using the Sharp GP2D12-Sensor because the other IR reflective sensors I use won't work under sunlight. I read the spec. sheet of GP2D02 and GP2D05, both of them mention that they (...) (24 years ago, 1-Jul-00, to lugnet.robotics.handyboard)
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| | RE: Motors spinning at startup
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I also tried all sorts of capacitors, etc. in an attempt at solving this problem. While the capacitors helped to minimize the length of time before the motors calmed down, there was always a short period of motor craziness that never went away. I (...) (24 years ago, 30-Jun-00, to lugnet.robotics.handyboard)
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| | Re: Motors spinning at startup
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|
I have been having the same motors spinning on powerup "problem" with my Handyboard. I tried various capacitor combinations on my modified servo motors to no effect. Fred M. finally provided the answer: (...) In short, there is nothing wrong with (...) (24 years ago, 30-Jun-00, to lugnet.robotics.handyboard)
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| | Re: sonar and overflow
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Hi I think that the longest distance your able to measure is about 2.7m. The counter is 16 bit long and has no sign. But the integer is has a sign, so you can only use 15 bits, which is 32768. The counter increases each 0.5ns (pink book). Sound (...) (24 years ago, 30-Jun-00, to lugnet.robotics.handyboard)
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| | sonar and overflow
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Greetings all, Has anyone managed to work out some code which checks the overflow bit for the counter used in the polaroid sonar code? At the moment mine distance readings seem to be maxing out around 1.5m or so, and I'm not sure if it's the timer (...) (24 years ago, 30-Jun-00, to lugnet.robotics.handyboard)
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| | Re: Unable to go into bootstrap
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This problem is very common. Probably, your board is fine. Check this page on the Handyboard site to start off with : (URL) you have no luck with that, then try fooling with your port settings. Switch from xon-xoff to none, etc. Somewhere in there (...) (24 years ago, 29-Jun-00, to lugnet.robotics.handyboard)
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| | Unable to go into bootstrap
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I have recently obtain a handyboard kit. This is my first board. After connecting the Ni-Cad batteries and adapter, I proceeded to download therequired .s19 file using HBDL. It was unsuccessful. The LCD screen displayed one line of brightly lighted (...) (24 years ago, 29-Jun-00, to lugnet.robotics.handyboard)
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| | minor update to new random.c
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Field testing in a real class is the best way to get bugs out of code :-) My summer robotics class discovered a couple of "misfeatures" in my new random.c pseudo-random number generator library: (1) the rndrangei(), rndrangel(), and rnd() functions (...) (24 years ago, 28-Jun-00, to lugnet.robotics.handyboard)
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| | Re: Sound Start for Handyboard
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|
(...) There's a circuit at the Seattle Robotics Society website, under the encoder. Sounds like it might be what you're looking for. -Jim Munro <jimmn@xnet.com> (24 years ago, 27-Jun-00, to lugnet.robotics.handyboard)
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| | Sound Start for Handyboard
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I need to build a circuit that will listen for a 3.5kHz tone and then activate a program on the Handyboard. I have seen a few different circuits in various books but none seem tailored to my specific needs. Does anyone out there have a good electret (...) (24 years ago, 27-Jun-00, to lugnet.robotics.handyboard)
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| | Data Acquisition
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Hi. I am interested in using a handy board for data acquisition from a small engine dynomometer and as a data logger in a 1/4 scale race car. I want to read 3 rpm readings, one from the spark plug, one from the engine clutch bell and one from the (...) (24 years ago, 27-Jun-00, to lugnet.robotics.handyboard)
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| | Re: Dificulties downloading to partially assembled board
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The "fast" processors are legendary for having problems with loading IC pcode and libraries. Probably, your board is fine. Have you looked at the page on the HB website having to do with com problems? It's at (URL) is a good place to start. If you (...) (24 years ago, 23-Jun-00, to lugnet.robotics.handyboard)
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| | Dificulties downloading to partially assembled board
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I am at the point in construction where it asks you to test serial communications to the board before proceeding with memory installation. I hesitate to continue until I am comfortable with the workings of my board. When trying to establish comms, I (...) (24 years ago, 23-Jun-00, to lugnet.robotics.handyboard)
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| | **Deleting files?**
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Hi , I was wondering if there is a way to delete all user input files from the Hb without typing," UNLOAD FILE NAME".? Also is there a way to make the HB execute a command while downloading a program, without causing the Hb to stop loading my (...) (24 years ago, 23-Jun-00, to lugnet.robotics.handyboard)
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| | HB for sale
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I am seeling my HB, it was only used for my senior project. Total time of use would be about two weeks. One modification was made to the board which was a differant switch was put on to it to turn it ON and OFF. If you are inteested please e-mail me (...) (24 years ago, 23-Jun-00, to lugnet.robotics.handyboard)
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| | HB site down, use alternate
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hi all, we are working through a hardware crash of the primary HB web site server machine. for now, please use instead: (URL) (24 years ago, 22-Jun-00, to lugnet.robotics.handyboard)
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| | LCD Memory Map
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I am just checking that I have got the LCD operation right so I apologise to anybody who is already clear on this. On the LCD module the Register select and Read/Write pins are connected to the A9 and A8 lines of the HB and the DB0-DB7 pins are (...) (24 years ago, 22-Jun-00, to lugnet.robotics.handyboard)
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| | Handyboard Site
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Hey all, Feel free to check out this handboard site, it's used along side a course taught at the University of Alberta. Feel free to write me back with any criticism (URL) Verret B.Sc. Electrical Engineering M.Sc. Electrical Engineering 2002 (...) (24 years ago, 21-Jun-00, to lugnet.robotics, lugnet.robotics.handyboard)
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| | new version of Rich Drushel's random.c libarary for IC
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I have created a new and better version of my random.c IC library for pseudo-random number generation. The old version had an algorithm that I cooked up myself, and while it was fun to program, and fun to get working in a multitasking environment (...) (24 years ago, 15-Jun-00, to lugnet.robotics.handyboard)
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| | Re: HB Memory map
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|
Device Location Notes ===...=== 6811 internal $0000-$00ff Built-in RAM (A1 chip) $0000-$01ff (E1 chip) ---...--- 6811 control $1000-$103f Built-in registers ---...--- Expansion I/O $4000-$4fff Memory reads in this range enable the Y1 latch selector, (...) (24 years ago, 14-Jun-00, to lugnet.robotics.handyboard)
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| | Re: Motors spinning at startup
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|
The problem is the same with LEGO-gear-motors. Even worse, the post says "... put a wire to the can ..." but how can you do this with a plastic device? Any help appreciated. Dirk (24 years ago, 14-Jun-00, to lugnet.robotics.handyboard)
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| | Motors spinning at startup
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|
Hi all, I have a problem with the motors connected to my handyboard. When I first turn on the HB, the motors will spin randomly. This happens about every 2-3 times I switch on. I know this problem has come up before on the list, but the post I found (...) (24 years ago, 13-Jun-00, to lugnet.robotics.handyboard)
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| | Proposition
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HEALTH: A NEW NATURAL HELP To the product Manager The customers demand for natural products is increasing steadily, and Aromatherapy is becoming an important part of the pharmacopoeia. The Aromagica line of products is the outstanding result of (...) (24 years ago, 13-Jun-00, to lugnet.robotics.handyboard)
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| | HB Memory map
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This probably sounds like a pretty lame question but I am trying to make use of the unused areas in the lower 32K of the memory map of the HB but I can't seem to find the memory map in the documentation that I have available (the HB pdf manual, IC (...) (24 years ago, 12-Jun-00, to lugnet.robotics.handyboard)
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| | circuitboards for Handyboard
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|
Hi. Are the circuitboards for the Handyboard available somewhere in Europe? Regards/Mvh. John Jensen (24 years ago, 12-Jun-00, to lugnet.robotics.handyboard)
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| | Motor Masks***
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Hi , does anyone know if there are specific moter masks already defined for the HB? Or can I just initialize them anywhere there is free memory? Thanks -Mike (24 years ago, 9-Jun-00, to lugnet.robotics.handyboard)
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| | RE: fast computer problems
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|
Still no luck! any other ideas ??? - what baud rate is the port meant to be set at? 9600? Thanks again Ross -----Original Message----- From: Gary Livick [mailto:glivick@pacbell.net] Sent: 05 June 2000 08:25 To: The Glashans Cc: (...) (24 years ago, 6-Jun-00, to lugnet.robotics.handyboard)
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| | SCI, IC and interrupts
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|
Hi I need to communicate with my handy board using the serial port using the Interrupt for SCI. I tried to test several programs that I found, without success. My basic test is the following. 1.- I created and .asm file which is a copy of the (...) (24 years ago, 5-Jun-00, to lugnet.robotics.handyboard)
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| | Re: fast computer problems
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|
What works on my computer is to go into the port settings, set XON-XOFF, and then enable the FIFO buffer and turn the speeds all the way up. I have a Toshiba laptop, so hopefully your settings will be the same. If I do it any other way under WIN98, (...) (24 years ago, 5-Jun-00, to lugnet.robotics.handyboard)
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| | fast computer problems
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Hi all I jsut got a new win 98 machine, and tried to move IC across to the new machine. I came up against the problem I'm sure everyone with a new PC must have encoutereded with win 98, where IC wont communicate. From DOS IC works perfectly and HBDL (...) (24 years ago, 5-Jun-00, to lugnet.robotics.handyboard)
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| | Did I fry my Polaroid unit?
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|
Today, I started trying to use my Polariod Sonar unit pulled from a Polaroid OneStep Sun 660 Camera. I didn't get the hang of it the first time. I desoldered the connector and put on wires. Then I plugged it in backwards. Oops. The chips started (...) (24 years ago, 3-Jun-00, to lugnet.robotics.handyboard)
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| | Where to find program examples?
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Hi I recently purchased a Hb, does anyone know where I can find examples for programming it? Also is the IC code for the rug Warrior the same as the IC for the HB? Thanks -Mike (24 years ago, 2-Jun-00, to lugnet.robotics.handyboard)
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| | Re: Ic question
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|
As far as I know, the infinite loop construct is the way to do it. However, you can have multiple processes, each waiting on a sensor, each running in an infinite loop, each using the defer() function to allow switching between processes when (...) (24 years ago, 2-Jun-00, to lugnet.robotics.handyboard)
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| | Sharp GP2D12 & Sony IR Receiver
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Is there SOMEONE that can run SHARP GP2D12 analog sensor when using IR RECEIVER? I couldn't achieve that. The sensor can give satisfactory results it is used without alone. I can also get data of a sony remote controller from the ir receiver when (...) (24 years ago, 2-Jun-00, to lugnet.robotics.handyboard)
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| | Ic question
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I have been playing around with my handy in command line for a little while now. It seems like the only way I can get it to start doing something when a sensor is activated is to have it in an infinite loop waiting for that sensor to be pressed. For (...) (24 years ago, 2-Jun-00, to lugnet.robotics.handyboard)
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| | Re: Got my Handy, now what?
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(...) The The Handy Board Technical Reference has encoder information for you. The ones I use are the QRB1114, and they are just two or three dollars each. The Reference shows you how to wire them. See (URL) encoders mentioned provide an analog (...) (24 years ago, 2-Jun-00, to lugnet.robotics.handyboard)
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| | Got my Handy, now what?
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I ordered my Handy Board today, and am going to install it in an ice cream bucket named "BucketBot." (Better name? Please?) Well I know that I'll be hooking up my GP2D12 to it, and a sonar module (Polaroid 6500 hacked out of a Polaroid Sun 660 One (...) (24 years ago, 2-Jun-00, to lugnet.robotics.handyboard)
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| | Re: XC68HC11F1B4 Pin assignments
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in article 393601FD.1DF@hemo.net, Zele at 4n7ax@hemo.net wrote on 5/31/00 11:26 PM: (...) I found the documentation for the MC68HC11F1 series on the Motorola web site at this URL: (URL) documentation is in an 848k PDF file: (URL) picture you're (...) (24 years ago, 31-May-00, to lugnet.robotics, lugnet.robotics.handyboard)
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| | XC68HC11F1B4 Pin assignments
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Hello, I have few XC68HC11F1B4 in 64-pins plastic SDIP, but can not find any data about pin assignments for this chip. Can somebody to help me with it ? Please e-mail to: 4n7ax@hemo.net Z. Ristic (24 years ago, 31-May-00, to lugnet.robotics.handyboard)
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| | XC68HC11F1B4 Pin assignments
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Hello, I have few XC68HC11F1B4 in 64-pins plastic SDIP, but can not find any data about pin assignments for this chip. Can somebody to help me with it ? Please e-mail to: 4n7ax@hemo.net Z. Ristic (24 years ago, 1-Jun-00, to lugnet.robotics, lugnet.robotics.handyboard)
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| | Grizz, Let me know.
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Hi Let me know if you get this message so I know if we are on the same list? Thanks -Mike (24 years ago, 31-May-00, to lugnet.robotics.handyboard)
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| | Expansion board question?
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Hi I added the expansion board to my HB. I dowloded the propper files and My question is how do I check to see if my expansion board is working and has the files it needs? Thanks! -Mike (24 years ago, 31-May-00, to lugnet.robotics.handyboard)
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| | Re: Expansion Board problems (Kinda OT)
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(...) I was trying to build a 110V AC -> 24V DC power supply from Radio Shack parts once... It was late at night and I was tired. I only had a 12v transformer, so I pulled out an electronics book and build a voltage doubler on the output side of the (...) (24 years ago, 31-May-00, to lugnet.robotics.handyboard)
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| | Question burn the board?
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Hi , I have not recieved the HB yet but its on order, my question is I saw in the freeware IC, BURN THE BOARD icon? Is this used to load the programs I write or is it something else? Thanks for any info. -Mike (24 years ago, 29-May-00, to lugnet.robotics.handyboard)
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| | Test 2**
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just a test to see if I have the correct address to send... (24 years ago, 29-May-00, to lugnet.robotics.handyboard)
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| | Test **
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Just checking something... (24 years ago, 29-May-00, to lugnet.robotics.handyboard)
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| | Re: hbdl question
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Todd, There are Two options on the Windows program HBDL.EXE 1. Download - This downloads a bootloader then a file to the external RAM of the handy board. 2. Burn - This (attempts) to download a file to the HandyBoards 68Hc11 internal EEPROM. Thus (...) (24 years ago, 28-May-00, to lugnet.robotics.handyboard)
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| | Re: my handy is death ????
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Do you mean that when you turn on the Handy Board, the motors start to run spontaneously? I used to have that problem, too, but only when there was no program yet loaded. I saw a message on this mailing list a few months back that suggested a remedy (...) (24 years ago, 27-May-00, to lugnet.robotics.handyboard)
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| | Re: IC question
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You might try something like: while( 1 ) { if( start_button() ) printf( "you pressed the start button\n" ); else printf( "\n" ); msleep( 250L ); } or simply: { start_press(); printf( "you pressed the start button\n" ); } -- Will (...) +---...---+ | (...) (24 years ago, 27-May-00, to lugnet.robotics.handyboard)
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| | my handy is death ????
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Mister They in my university bought 6 HandyBoard for the development of courses relations with IA. 2 of the Handyboard failed one of them sample in their screen for causes that not yet are known, the Interactive C, as if I you work correctly, the (...) (24 years ago, 27-May-00, to lugnet.robotics.handyboard)
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| | hbdl question
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when using hbdl what does the burn the board option do? It says download to eprom. What file should you download to the eprom? Is this necessary? Thanks, Todd (24 years ago, 27-May-00, to lugnet.robotics.handyboard)
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| | IC question
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Just got my handyboard, and I am new to programming, so I have a probably simple question for you all. I have been playing around with IC trying to get responses on the LCD from start button presses. if I send the following on the IC command line : (...) (24 years ago, 27-May-00, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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You can use solid state relays with 5 VDC inputs and DC outputs to control large loads. The inputs require very little current. It is less expensive to build transistor switches, which will do the same thing, but obviously much simpler to use (...) (24 years ago, 25-May-00, to lugnet.robotics.handyboard)
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| | handy board, motor problems
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I have six handy board for academics activities in my University. In two, I have problems: When move power switch ON, the same indicators(leds) of motors outputs work, with load programs and without load programs. ¿What's happening? Thank (24 years ago, 25-May-00, to lugnet.robotics.handyboard)
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| | CCD on the handyboard ??
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Maybe someone already discussed this argument.... I'd like to connect a CCD to the handyboard, but how ?? What comes out from a CCD ? How to interface the CCD's output signal ? Anyone can help me ? Stefano (24 years ago, 25-May-00, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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Todd, The outputs can control a transistor, that is powered by a separate higher current o/p. (Poor text diagram following) Vsupply _ | / Dig Out ---...---| <- Tansistor \ | |__ Vout (...) Charles Hacker Lecturer in Electronics, Computing and (...) (24 years ago, 25-May-00, to lugnet.robotics.handyboard)
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| | Digital outputs.
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How would I go about making the digital outputs capable of controlling a higher current than the 5 ma that is standard? Can a switching transistor be controlled by them? Or do I need some sort of IC to do the job? Particularly I would like to be (...) (24 years ago, 25-May-00, to lugnet.robotics.handyboard)
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| | servos again
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I'm still at my servo question :) the 3 servo routines so far use "normal" digital outputs. There are, according to the FAQ, 4 extra outputs I could use (SPI J6). Does this mean that I could write my own routines to drive 4 extra servos using these (...) (24 years ago, 23-May-00, to lugnet.robotics.handyboard)
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| | Re: Sharp analog distance sensor
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unsubscribe please. (24 years ago, 23-May-00, to lugnet.robotics.handyboard)
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| | Re: Sharp analog distance sensor
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(...) I created a website at: (URL) will have to add some new experiences. 1. You definetely should use the device vertical (my choice: Emitter at bottom). I have no clue, how anybody got reliable results when mounting it horizontal. There is no (...) (24 years ago, 22-May-00, to lugnet.robotics.handyboard)
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