 | | Re: Radio Modem
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Here is an nice summary of a variety of wireless data products: (URL) have used metricom modems to control robots and have had good success with them. They are not terribly inexpensive but work well and have a link budget sufficient to cover (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | 6500 sonar
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Does anybody know where I can get the Texas Instrument TL851CN and SN28784N chips. I found some on the web but I had to order 50 of them at 3$ a piece. Does this mean that I have to order the Polaroid 6500 Ranging Module for 34$ through Acroname. (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | motion sensor by eltec
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Hello all, Thank you for all of your kind help in the past. Here is another question that I hope is worthy of your time... I have a motion sensor purchased from Acroname (Eltec, I forget the part number). It works, as I had written a small program (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Radio Modem
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Hi, I'm looking for a radio modem or something like that, does anyone know where one -not very expensive- can be found ? Thanks Stefano (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Inductor
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Tuesday, 15th day of June, 1999, 12:41 AM, EST. Bart, You are right, but I also heard that HB is designed to take care of reverse emf WITHOUT a induction coil. The board is protected. -Satish. ---...--- Fortune cookie for the mail...generated (...) (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Inductor
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Denn: If I am not mistaken, and please correct me if I am wrong (anybody), but I think the inductor is in the circuit to protect the NiCd battery pack and rest of circuit against possible reverse electro-mechanical induction by the DC motors. Motor (...) (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | Inductor
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Hi, I see the HB circuit and found the 1uH that connect the GND Batteries and GND. I want to know the purpose of this inductor. Can I replace it with other value or not use it . Thanks (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | Re: about interrupt driven serial port input queue available for testing
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Just configure your Hyper terminal to use dirrect connection to COM 1 or 2 instead of the modem! (...) (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | about interrupt driven serial port input queue available for testing
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Thank you mat for your advice. But i coudn't under stand what should i do with the dial-up that is required for the hiperterminal connection. With out establishing a conection i can't use hyper terminal i guss. Could you please give some detailed (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Question about interrupt driven serial port input queue available for testing
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raj, I assume you could use windoze Hyper-terminal. Matt -----Original Message----- From: raj k <robo_helpmate@yahoo.com> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: 13 June 1999 00:35 Subject: Question about interrupt driven (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Battery options?
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(...) Should work fine. If you use the "Zap" charge mode, make sure the NiCad's are designed to work on fast charging. Some are, some aren't. Also, make sure you buy them and dispose of them as a set. If you start mixing and matching NiCad's, you'll (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Battery options?
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I was wondering what are my options for the HB battery. Would it be possible for me to get 2 battery holders each carrying 4 cells each and fill them with regular NiCad cells say, The one's they have at radio shack? Would this be a viable options to (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: H-bridge
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I think that the Robot Store ( www.RobotStore.com ) sells a variety of H-Bridges. I had no problem wiring up my own LMD18200's , however! As a matter of fact, I obtained 2 LMD's for free from the Natinal Semiconductor Website through their sample (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: IRPD sensors
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Evan, Who is the supplier (manufacturer) of your board, and what is the part number? Gary Livick (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: serial
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Monday, 14th day of June, 1999, 12:32 AM, EST. On similar note, does anybody know how I can set up the baud rate on my Win 95 machine? -Satish. (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | IRPD sensors
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I have gotten some Infrared Proximity Detectors (IRPD), but no instructions for using them with the handyboard. These are set up with an infrared LED on each type of the sensor, and they are intended to give left/right/front detection. The program (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Motion sensor
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Hello all, Thank you for all of your kind help in the past. Here is another question that I hope is worthy of your time... I have a motion sensor purchased from Acroname (Eltec, I forget the part number). It works, as I had written a small program (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | H-bridge
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Hello, Does anyone know if there is a vendor that sells a H-bridge that is ready to be used for the Handy-board, instead of me having to wire up a National Semiconductor LMD18200. Thanks for your time guys. Juergen Lunkwitz Drexel University (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | serial
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Hi, I am also having some problems with serial communications. I am trying to send information back and forth between linux and the handyboard. I wrote a simple serial sender for linux and have been trying to send to the handyboard. I have two big (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Precision Resistor?
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I actually used a small 5K POT (precision, multiturn), and tuned the output for 38 KHz. Hope it helps. K.L. McKinnon (...) (25 years ago, 13-Jun-99, to lugnet.robotics.handyboard)
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| | Precision Resistor?
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lynneg@dbn.lia.net Hi, I'm trying to build a HandyBoard up from scratch and am having a few problems with certain parts. Very few companies sell the 3.83K presision resistor (R4) or only at an extremely high prices. Would it be possible to replace (...) (25 years ago, 13-Jun-99, to lugnet.robotics.handyboard)
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| | Question about interrupt driven serial port input queue available for testing
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Hi pals, I downloaded the package for interupt driven serial queue from the website ((URL) I tried to run the demonstration file as instructed. But i didn't understand which communication application should be used for this purpose. Can any one (...) (25 years ago, 12-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Memory & Sound Detection
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Dear Jose, (...) I believe that there is an unload command, with syntax unload <filename> Please verify it. Yours sincerely, Nitin (25 years ago, 11-Jun-99, to lugnet.robotics.handyboard)
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| | EEPROM burner
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I apologize for this to those who mind. It *is* a bit off topic, but I have tried all other avenues available to me with no luck. I'm looking for a person who has an EEPROM burner or the schematic for one (If I had the schematic I would build one (...) (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Hi
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I don't know if the code gets corrupted, but the LED's do not do what they are supposed to do in download mode once in a while. Regardless of the lighting of the LED's, I am still able to download the code into my handyboard and keep on 'botting! (...) (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Hi
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Satish: The fact that the red and green leds in the lower left corner do not light up and than shut off after ~1/3 sec. means that your board does not reset and goes into download mode. This is the reason why the downloader states: "Wrong Port or (...) (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | Hi
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Thursday, 10th day of June, 1999, 12:18 AM, EST. Hi, I recently joined the HB club by buying a pre assemebled HB. I soldered the battery pack terminals to the HB (yes I checked the +ve and -ve terminals). However, when I try to follow the (...) (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | Fw: HOW TO UNSUBSCRIBE
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-----Original Message----- From: Fred G Martin <fredm@media.mit.edu> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: Wednesday, May 12, 1999 7:33 AM Subject: HOW TO UNSUBSCRIBE (...) (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | Bad Memory ? Help!!!
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Hi I trie to use the 62256BLP-10, instead of the 62256LP-120. And it didn´t work on the Handy board, but download program on the PC, said that the download was fine "Reboot the board", then I unplugged the Memory Chip, and tha same thing happend. (...) (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | unsubscribe help
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I lost my directions on how to unsubscribe and the email address that I send it to could you please help (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Many requests for source for DS1233-10 and IS1U60.
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All: I found a good source for above mentioned parts at Future electronics. Web site : www.future.ca/fai , no part search but contact adresses in here. I used their Sacramento outlet: 3009 Douglas Blvd Suite 120 Roseville, Ca 95661 Voice (916) (...) (25 years ago, 10-Jun-99, to lugnet.robotics.handyboard)
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| | Re : Where can I get a cheap HB?
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Hi, I'm a french student and I buy one handy board at robot store (HongKong) only by mail. I paied it about 179 Euros for the assembled version with the Interactive C version 3.1. I think that for the first handy board it better to buy it assembled (...) (25 years ago, 9-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Where can I get a cheap HB?
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Jens, I too built up a pair of Handy Boards from parts I bought myself. I concur that the assembled price is around $100 plus or minus for both the Handy Board and expansion board. However, the time spent to find all the components, some of which (...) (25 years ago, 9-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Where can I get a cheap handyboard?
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Jens: I recently build (last month) two handyboards and spent approximately $200.- US total. I live in California. I got the components through various mail order places like: Digikey, Mouser. And from local discount surplus electronics store HCS, (...) (25 years ago, 9-Jun-99, to lugnet.robotics.handyboard)
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| | Microsoft IntelliEye mouse - very good robot position tracker?
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Product Description: "Microsoft IntelliEye technology employs a tiny chip with a sensor and digital signal processor (DSP). The sensor’s glowing red light captures “snapshots” of the work surface at a rate of 1,500 images per second. The DSP (...) (25 years ago, 9-Jun-99, to lugnet.robotics.handyboard)
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| | Re: How to make your own assembly code position independant
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Marobi, Do not know much about IC and assembly code downloading. However, I have produced a system for programming the HandyBoard with Assembly/machine code. This system may help you. It can be downloaded from: (URL) (...) Charles Hacker Lecturer in (...) (25 years ago, 8-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Digital Input Problems
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(...) Sounds like the inputs are shorted together somehow. Check your soldering in this area for bridges. Best, Duncan (25 years ago, 8-Jun-99, to lugnet.robotics.handyboard)
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| | Digital Input Problems
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Hi all, I'm at stage 7.2.2. of assembly, and I have partial failure of the digital ins, when I type "testdigitals();" at the ic prompt, (After pressing start, and stop) I get on the handyboard screen 9 gently flashing zeros, nothing wrong so far (...) (25 years ago, 8-Jun-99, to lugnet.robotics.handyboard)
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| | Where can I get a cheap HB?
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Hi all, To start with the HB I have to buy one. But where can I get a HB with an acceptable price? Or should I buy the components to build the HB myself? Jens G. (25 years ago, 8-Jun-99, to lugnet.robotics.handyboard)
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| | Re: GP2D02 IR sensor
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Hi try (URL) Where can I find specific instructions on how to hook up the GP2D02 to the Handy (...) Tom -- Thomas Hauri ZHW Zuercher Hochschule Winterthur University of applied sciences IMS Institute of mechatronic systems Technikumstr.9 /PF CH-8401 (...) (25 years ago, 8-Jun-99, to lugnet.robotics.handyboard)
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