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 Robotics / Handy Board / *5064 (-40)
  RE: GP2D02?
 
Has anyone found a source for the GP2D02? -----Original Message----- From: Lewis Patterson [mailto:lewis@bsc.edu] Sent: Wednesday, January 06, 1999 1:13 PM To: handyboard@media.mit.edu Subject: GP2D02? If anyone who has successfully interfaced the (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
 
  supplier for Sharp IS1U60 infrared demodulator
 
Hello Folks- A couple of months ago I built a HB with the exception of one part... U15 (Sharp IS1U60 infrared demodulator) ... I now have the need. I am looking for the info for a supplier or individual that will sell a small number(2). I'm in the (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
 
  (no subject)
 
unsubscribe Thierry VOINIER CNRS-LMA-IM 31, Chemin Joseph Aiguier 13402 Marseille France Tel : 04 91 16 44 73 Fax : 04 91 22 08 75 E-mail : voinier@alphalma.cnrs-mrs.fr (URL) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
 
  RE: GP2D02?
 
I own an handy-board now for 2 months and I have now 2 GP2D02 connected to it. (took me 1 hour to hook them up and test) You need a digital output-pin(like one off the spi-pins) or make use of the expansion-board, which has digital outputs. I (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
 
  Position Control Question ?
 
Hi Everybody Through reading every day e_mails, I have been led to beleive that I have to be carefull in choosing a servo motor brand, so could any body help me in choosing a servo for my application which is a position control,I mean a ref. and a (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
 
  Re: Type conversion IC.
 
I don't have IC handy, but you should just be able to do a hard cast. float aFloat = 1.3; int anInteger = 0; anInteger = (int) aFloat; /*cast the float to an int */ /*you can also do it in a function call*/ FuntionTakesAnInt( (int) aFloat ); Hope (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
 
  type conversion
 
Hi to all And HAPPY NEW YEAR. I have a question. How can i convert a floating variable into a integer variable? I must send via serial line the result of the functions SECONDS(). Thank Federico E-mail:fedsante@tin.it (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  Type conversion IC.
 
Hi to all And HAPPY NEW YEAR. I have a question. How can i convert a floating variable into a integer variable? I must send via serial line the result of the functions SECONDS(). Thank Federico E-mail:fedsante@tin.it (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  Re: Handyboard power supply
 
what is the amp-hour rating of each cell. standard AA rechargables are 500 to 800 mAh. if your cells are significantly different than this, the charging might not work properly. generally though i don't see too many probs with this. you might need (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  GP2D02?
 
If anyone who has successfully interfaced the GP2D02 to the Handyboard would share that knowledge with the less experienced, it would be greatly appreciated. Thanks! (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  Re: using external batteries
 
the label on the diagram says "cut motor trace here" with an arrow that points to a dark band. if you look at your HB, it won't have a dark band. that's where you need to cut. slice through the green-coated trace where that dark band on the picture (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  using external batteries
 
dear readers and fred, i read the instructions on the website on how to use external battaries. the problem is: - in the website, i couldnt see the copper trace properly which we need to cut in order to use the external batteries port. could any one (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  Re: servo help
 
try running the servo off of a separate power supply; e.g., 4 AA cells. you'd connect the servo red wire to the battery + lead, the servo black wire to the battery - lead, and also connect the battery - lead to the HB motor ground. in general it is (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  Re: INTERACTIVE C
 
We have developed a library of functions so that one can write HB-style code and run it either on the HB or compile it with the library and run it on a PC. It hasn't been thoroughly debugged, but works consistently (There are some timing issues that (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  Interrupt Request line
 
Hi all, Does anyone know how to get a the interrupt line on the handyboard. Been looking at the documentation, and was a bit surprised that the interrupt was not available. Am I missing something? Charles Hacker Lecturer in Electronics, Computing (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  Trinity Fire-Fighting Contest
 
Has anyone built robots for the trinity fire-fighting contest. I would like to hear your design and what kind of major problems that you encountered in building it. A website would be great. The reason for my interest is that I need to include any (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
 
  servo help
 
I could really use some help connecting a Futaba 3101 microservo. I bought the micro servo to reduce the weight instead of the standard S148 servo. Anyway, I connected the red line to the HB +5V supply on the SPI expansion header. The black wire to (...) (26 years ago, 5-Jan-99, to lugnet.robotics.handyboard)
 
  Re: INTERACTIVE C
 
If you use icc11 (a cross compiler, not an interpreted compiler) for the handyboard (they have a library for controlling the handyboard) then printf() calls write to the PC and lcd_write calls write to the LCD. --Chuck icc11 is available from (...) (26 years ago, 5-Jan-99, to lugnet.robotics.handyboard)
 
  Handyboard power supply
 
Hi Fred and other, I intend to use grandcell rechargable batteries to supply the HD. Each battery is 1.5V . If I supply 7 batteries of total 10.5V to the HD , is there any problem ? rgds, phillip (26 years ago, 5-Jan-99, to lugnet.robotics.handyboard)
 
  INTERACTIVE C
 
Dear Friends, In Interactive C,the printf statement writes messages to the LCD screen.Is there any way by which we can write to the monitor screen of the computer from which the programs were downloaded? Yours Sincerely, Nitin (26 years ago, 4-Jan-99, to lugnet.robotics.handyboard)
 
  Serial Communication Clarifications for Newbies, Please...
 
Howdy, I've been playing with my HB for about a month now, and after reading all the documentation again, I was able to solve the newbie questions that I have posted few weeks ago... But now, I'm stuck with serioal I/O :) Could someone help me (...) (26 years ago, 4-Jan-99, to lugnet.robotics.handyboard)
 
  again - pc/win95 and hb pcode source
 
Hi! Some time ago i asked this question now i try again, maybe anybody can help me! I dowloaded the environment for the pc(dos) to assemble a s19-pcode file for the hb. Now i tried a little bit but it does now work, What you can download under pcode (...) (26 years ago, 4-Jan-99, to lugnet.robotics.handyboard)
 
  HBML:
 
We are not able to get the Dallas Semiconductor 1233 power on reset chip in India here. Can I use a regular power on reset circuit or can i find any particlular replacement for the chip. Please reply soon thank you -Milind (26 years ago, 4-Jan-99, to lugnet.robotics.handyboard)
 
  Re: INTERACTIVE C
 
not really. you can issue serial line characters to the desktop PC from the HB (see the FAQ), but IC cannot display them. so, for interactive development, it won't work. but if you can quit IC and run a terminal emulator program on your PC (e.g., (...) (26 years ago, 4-Jan-99, to lugnet.robotics.handyboard)
 
  Good link-source
 
www. columbia-center.org/...ting/index html This company has a intetresting "radar" -ultrasonic in nature. The software, I thought, was especially interesting and adaptable to the handy board by some one a whole lot cleverer than myself. Also some (...) (26 years ago, 3-Jan-99, to lugnet.robotics.handyboard)
 
  Re: Announcing the Handy Board Expansion Board
 
(...) you can buy these at LEGO Pitsco-Dacta, (URL) are part number 979891, $27 ea. Fred (...) (26 years ago, 2-Jan-99, to lugnet.robotics.handyboard)
 
  DEBUGGING SOFTWARE
 
Dear friends, With respect to page 31(page no as taken from printout) of the Handy board assembly manual (hba.pdf) downloaded from (URL) site, it has been said there that custom software shall be available soon for testing memory.I want to know (...) (26 years ago, 2-Jan-99, to lugnet.robotics.handyboard)
 
  Re: sensors input
 
michael, The parallel combination of resistors is the recprical of the sum of their recpricol values. Req = 1 / ( 1/R1 + 1/R2 + 1/R3 + ...) Your 16 LED resistors combine to make Req = 1/( 16 x (1/82)) = 5.125 ohms. So your LEDs are drawing just (...) (26 years ago, 1-Jan-99, to lugnet.robotics.handyboard)
 
  RE: Announcing the Handy Board Expansion Board
 
How can I get ahold of a Lego shaft encoder? (...) (26 years ago, 1-Jan-99, to lugnet.robotics.handyboard)
 
  Re: sensors input
 
You don't really show your connection to your Handyboard, but I would suspect that with 16 connectted in parallel, you are probably drawing sufficient current to drop your voltage below the reset value of the micro monitor (DS1233? if I remember (...) (26 years ago, 1-Jan-99, to lugnet.robotics.handyboard)
 
  Announcing the Handy Board Expansion Board
 
Greetings everyone, It's the last day of 1998, so it's a good time to announce the official release of the Handy Board expansion board. The Handy Board Expansion Board is officially released! The Expansion Board plugs on top of the Handy Board, and (...) (26 years ago, 31-Dec-98, to lugnet.robotics.handyboard)
 
  Re: Miniboard in space.
 
Can you possibly share your complete design (maybe in a web page ?). That would be a graet service for us all. Thanks (...) (26 years ago, 31-Dec-98, to lugnet.robotics.handyboard)
 
  Re: HBLS Subject Headers (please Read)
 
either that or switch to an email client with better filtering. I use Claris Emailer 2 adn simply filter all mail whose to or from includes "handyboard" cheers, tim ___...___ Dr. Timothy Bates Don't compromise. Use QuickTime. Dept Psychology (URL) (...) (26 years ago, 31-Dec-98, to lugnet.robotics.handyboard)
 
  sensors input
 
hi everyone, i have tried to configure a set of sensors used for sensoring the wall in the maze. the circuitry of each of the sensors is: +5V +5V ----- ----- | | | | \ \ / / R1=82 ohm \ \ R2=120Kohms / / | | | | ------- |/ IR emitter \./ |\ IR (...) (26 years ago, 30-Dec-98, to lugnet.robotics.handyboard)
 
  HBLS Re: pcode 3.2 beta 1 with FP divide fix
 
Hello All- Just as a data point for Randy...... I have installed 3.2 beta 1 pcode on my HandyBoard, and I get the right answer for floating point divides. : ) (...) (26 years ago, 30-Dec-98, to lugnet.robotics.handyboard)
 
  HBLS Subject Headers (please Read)
 
It would be great if everyone put something in the header of every message for the list. This would make it possible to have mail coming from the list automatically filed. Could we put something like 'HBLS' in the subject of every message for the (...) (26 years ago, 30-Dec-98, to lugnet.robotics.handyboard)
 
  Re: DC Motor Manufacturers
 
Regarding the DC motor manufacturers that I had sent you a mail about. Here are the details: I have talked to the manufacturer here in India for obtaining the details for you and the good news are that they already export these motors to the USA. (...) (26 years ago, 30-Dec-98, to lugnet.robotics.handyboard)
 
  Re: DC Motor Manufacturers
 
we are developing a small rover here at V.E.S. Institute of technology, India and we are using DC motors made by a manufacturer here in Bombay,India. They make all kinds of DC motors and special internally geared motors having the ratings that we (...) (26 years ago, 29-Dec-98, to lugnet.robotics.handyboard)
 
  RE: digital inputs?
 
hi everyone, i would like to know if there is any digital inputs other than the 16 inputs used for the sensors. which means i would like to have more inputs! is this possible? from michael (26 years ago, 29-Dec-98, to lugnet.robotics.handyboard)
 
  encoder to handyboard?
 
dear readers and fred martin my DC motor comes with a 10 pin optical encoder(supply current-10mA) how do i connect my encoder part to the handy board? can i ignore the encoder? my robot only needs to sense retroreflective white tape, can i just use (...) (26 years ago, 29-Dec-98, to lugnet.robotics.handyboard)


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