 | | Re: Serial interface/ RF data link
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To properly comunicate with any PC you need to convert your TTL TX and TTL RX signals coming from the Handy Board to RS232 voltage levels. The charging board contains this interface IC called the "MAX232" The power wire is required unless you are (...) (26 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | Help with overcharged batteries
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Last night we discovered that we had left our Handyboard on ZAP when we thought we had left it to trickle. It was left at this condition for about 6 hours. This morning the motors are running very sluggish. Are our Handyboard or its batteries (...) (26 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | Serial Interface/ RF data link
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Sorry, the kit is from LINX Technologies (not LYNX) <A HREF="(URL)Linx Technologies -- Products</A> (URL) (26 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | Serial interface/ RF data link
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Let's say I want to use a serial interface board without the "charger", as the one provided with the Handyboard kit. The Tx and Rx lines are obviously required, but what about the ground and power lines?... Speaking of "easy to interface" data link (...) (26 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | RE: expand memory HB
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I'm running IC 3.2 and am curious why this fails : #define HOURS 10.0 /* hours of logging */ #define INTERVAL 5.0 /* minutes between samples */ #define SAMPLES ( (60/INTERVAL)*HOURS + 1 ) float battery_voltage[ SAMPLES ]; the message on download is (...) (26 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | expand memory HB
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Hi. I have a question, i want to build a Datalogger with my Handyboard. How can i simply expand the data memory, i need at least 128Kbytes of memory. Thank. Federico Santello E-mail:fedsante@tin.it (26 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | Re: start_process() questions
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(...) Yes. The subroutine acts just like any other function that you call. (...) Once you do a start_process, that subroutine will run indepently and concurrently with your main program. It does not "run out of time"... it will continue to run until (...) (26 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | Re: two way radio question and data link
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Details on Radio Data Modules as follows: I have called ABACOM Technologies --new phone # (416) 236 3858) and this is probably your best bet for voice or data use. Data & prices are from Circuit Cellar Ink magazine TRANSMITTER * 30 x 10 x 5mm * (...) (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | start_process() questions
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Hi, I'm using start_process() to run a set of processes. My questions() are: 1. does start_process() re-initailize all the called process's (local) variables every time it calls the process? 2. If the process does not complete before its alloted (...) (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | SPO 256
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F.Y.I. B.G. Micro no longer is selling the Text to speech IC "CTS256A-AL2" they only have the SPO256 IC in stock. This was confirmed by B.G. Micro on 12/07/98. According to a few people they still sold them as pairs as of 08/98 If anybody else is (...) (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | spo256 -Reply
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I bought both from B.G. Micro. (They were not selling the 3.12MHz crystal, however, I successfully used a slightly faster (3.26??) clock. I assume the pitch of the voice was a little higher but it worked. -Drew (...) Does anyone know who sell's the (...) (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | Re: spo256
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www.bgmicro.com about $5 or so for the chip ??? (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | re: www."hc11"
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wsomebody sent a list of www.'s from different source code for HC11 by mistake I erased please release then again thankx (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | communication problem
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Hi everybody I seek someone who can help me. I use handy board and xc40 board(it mounts xc4010 FPGA chip). And I have to make two board communicate each other. But there is a problem that I don't know the method. In handy board's F&Q page, It says (...) (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Extra output for clocking (Using Hardware Output Compare)
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Hugo: I am not going to be able to answer this one fully. We will need to hear from others on the list to hear how to mix assembler code into an IC program, how to have the IC program modify assembler variables, and how to set up interrupt service (...) (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | communication between two boards
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I use handy board and xc40 board(It has xc4010 FPGA chip) The problem is that they must communicate each other. But I don't know how I can make them communicate. In Q&A(at mit's handy board home page) it says that SPI pin can be used as digital (...) (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | spo256
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Does anyone know who sell's the SPO256 and CTS256A-AL2 IC's (26 years ago, 7-Dec-98, to lugnet.robotics.handyboard)
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| | Re: hbdl.exe download prob
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Shiva, When the Windows hddl.exe complains that it cannot open the port, it is usually due to another Windows programming using / holding that serial port. Try all the comm ports to see if hbdl.exe allows it to open one of them, then attach the (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two Way Radio question
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I would think so, assuming that you keep the data rate relatively low (IMHO, 9600 bps would probably be pushing it, 2400 may be better) --phil (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two Way Radio question
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I am using a rug warior pro whose brain is very similar to the Handyboard and would like to know if these VHF radio Data Modules could be set up between the computer serial port and the Rug Warrior brain to provide a radio link instead of the 4 wire (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | Re: two way radio question and data link
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Hi folks! I've found Terri Cherr's idea of using VHF data modules excellent, not only to exchange voice, but to communicate to a host computer also. The "robot" could send sensoring information to a computer (or even another robot) and receive (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two Way Radio question
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Another possible neat solution would be to use a pair of VHF radio Data modules at each end. These normally send digital data, but if you pulse width modulate / demodulate at each end then audio could be sent. There is a company that advertises in (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | RE: Looking for a Handyboard KIT
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Check out the MIT web site for vendors. I believe they list Gleason Research at a source. Here's the MIT web site: (URL) the web site for Gleason Research: (URL) this helps!!! Bill Denzel Senior Mechatronics Student California Polytechnic State (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | Handy board for sale
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I have a handboard for sale, with display, only one L293D chip installed. Has passed all the checks in the assembly manual, as I understand them. $175.00 Also have a rug warrior board for sale, it is missing the L293D chip (it got put in the handy (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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The kit I used is DK-7 "FM transmitter bug" made by Marlin P. Jones & Assoc., Inc PO Box 12685 Lake Park, FL 33403-0685 (407)848-8236 FAX (407)844-8764 at least that is what is on the packaging label. It was $10 two years ago. I got mine at a local (...) (26 years ago, 6-Dec-98, to lugnet.robotics.handyboard)
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| | hbdl.exe download prob
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Hi, My Hb displays MEMMORY FAULT whenever I turn it on. SO I figured runneing the hbdl.exe would help aleviate this situation. When I run it however, it says it cannot open the port! Anyone know why? I have made certain that the serail port is (...) (26 years ago, 5-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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I will look for the schematic. The one I built was a $10 kit I bought. Mike -----Original Message----- From: The Plumber <jhoffman@it.sait.ab.ca> To: michaelj@wt.net <michaelj@wt.net> Cc: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: (...) (26 years ago, 5-Dec-98, to lugnet.robotics.handyboard)
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| | Re: handy board ic programs
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(...) (26 years ago, 5-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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I would be interested in any schematics you would be willing to give up, maybe even a little theory behind operation. I must admit I am lacking quite a bit in the communications area. Thanks, Joe Hoffmann E-Mail jhoffman@it.sait.ab.ca (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | RE: Sonar question
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That will only allow one half of the conversation. I suppose you could run with two kits, one receive, one transmit, both tuned to different frequencies. Another suggestion might be one of the cordless, battery operated intercom system units. Most (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Apple Microphones
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(...) I would only caution you that there are two types of microphones for the Mac -- regular mics and "PlainTalk" microphones. I suspect you are talking about a PlainTalk mic. The obvious distinguishing difference is the "longer than normal" male (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | handy board ic programs
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i just recived a new handy board in the mail and wonder if any one could email me some sample programs in ic or a web site to down load some. most of the programs that came with the handy board were for diferent controlers. thanks wayne email (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Sonar question
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Radio Shack have a small FM Transmitter kit . I think it was about $10. Regards, Terry Howsham (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Apple Microphones
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Has anyone used Apple computer microphones with their robots. The mic seems to have a left and right channel. It has a circuit board inside the case. I don't what the circuit actually does. It would great if I could just connect it to the handyboard (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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(...) CB radio's, Buisness radio (license needed), amateur radio (license needed, again), family radio (no license), etc. --phil (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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Yes, we have not only considered that idea, we have acted upon it. I guess the more operative question would have been: Is there a more efficient method of communication other than the wakie talkies? (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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That's a hard one because you have to have sufficient gain from the robot microphone to hear someone 2 to 8 foot from the microphone. Usually communication equipment limits their microphone gain on purpose to exclude background noise. You have to (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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(...) How about those teenie weenie FM radio microphones that they advertise "you can hear a wisper from 14feet away". Usually in "Electronics Now" and other magazines. (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Two way audio -Reply
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How 'bout a cheap pair of voice activated walkie talkies?? (...) Hi, We are trying to transmit our voices to our remote robot to create the impression that the robot is talking. In addition, we want to be able to hear what the robot hears. Does (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Two way audio -Reply
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A couple of years ago I built a small FM transmitter that had a small microphone on it. I could hear whispers in the room next door when I turned it on and tuned in a small transister radio to its frequency. This may be an option. Mike (...) (26 years ago, 4-Dec-98, to lugnet.robotics.handyboard)
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