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Hi Todd, You don't need the expansion board to connect the Polaroid transducer to the Handy Board. In fact, Kent Farnsworth has code to show exactly how to do it. Check out: ftp://cherupakha.med...trib/kent/ I hope that helps. - Prabal (...) (28 years ago, 16-Oct-96, to lugnet.robotics.handyboard)
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| | Connecting Sonar to the Handy Board
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I am trying to find the easiest way to connect sonar to the handy board. I already have the polaroid soanr units but have no idea how to hook them up to the handy board. I have read about the expansion board and its capability of doing this. The (...) (28 years ago, 16-Oct-96, to lugnet.robotics.handyboard)
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| | Encoders routine
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I am having difficulty using the Encoders.c routine for the handyboard. I have written some code that continually reads the encoder (port 0) and writes it to the LCD, then waits 30 [ms] so that the value is readable. I called this code testsens.c (...) (28 years ago, 14-Oct-96, to lugnet.robotics.handyboard)
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| | Passive IR motion detectors
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(...) A while back B. G. Micros had passive IR modules for $8 or so. I haven't used them so I don't know if they work well. The phone # for B. G. Micros is (214) 271 5546. -- Randy (28 years ago, 10-Oct-96, to lugnet.robotics.handyboard)
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| | Looking for SN754410s.
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Richard Hughes sells individuals of the L293D. I don't know if that is good enough for you, but there aren't many places to buy onesies and twosies. (URL) (28 years ago, 9-Oct-96, to lugnet.robotics.handyboard)
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| | Looking for TI SN754410s.
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I am looking for four (4) TI SN754410s. I have tried all of the usual electronic parts distributors, but they are all out of stock. I would appreciate any leads or suggestions. Thanks. (28 years ago, 9-Oct-96, to lugnet.robotics.handyboard)
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| | Looking for SN754410s.
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I am looking for four (4) TI SN754410s. I have tried all of the usual electronic parts distributors, but they are all out of stock. I would appreciate any leads or suggestions. Thanks. (28 years ago, 9-Oct-96, to lugnet.robotics.handyboard)
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| | IR Detectors
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Does anyone know where to buy the electronics that are used to make security system IR/motion detectors? The complete wireless modules cost about $50, I was wondering if they could be bought without the transmitter and if these would be easy to (...) (28 years ago, 9-Oct-96, to lugnet.robotics.handyboard)
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| | More info of serial I/O
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I am trying to get the handyboard to communicate with a standard COM port. I have Randy Sargent's code of how to communicate serially, however, a terminal program cannot find the handyboard (I get a "Cannot open COM Port" error). I think that there (...) (28 years ago, 9-Oct-96, to lugnet.robotics.handyboard)
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| | looking for a web site...
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Along similar lines, I've been searching for a web site I saw once. It features a basic stamp or PIC controlled LCD terminal, to be directly connected to a serial line. I was hoping to possibly scavenge some code off of the site, but I can't find (...) (28 years ago, 6-Oct-96, to lugnet.robotics.handyboard)
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| | serial code
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I'm just curious if anyone has written any code to communicate with the handy board through its serial line - either on the PC or handy board side. (Yes, I have the routines Randy Seargent posted, I'm looking for implementations of them...) I'm (...) (28 years ago, 6-Oct-96, to lugnet.robotics.handyboard)
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| | Tutebot
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I am just starting to learn about basic electronics and robotics. I purchased the book "Mobile Robots" and have read through parts of it. I decided to try and build the "Tutebot", a simple analog brained robot with a bumper sensor. If anyone has (...) (28 years ago, 4-Oct-96, to lugnet.robotics.handyboard)
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| | Re: mobile robot books
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(...) The solution is something real dumb. I sent a message to all. You'll laugh at it. :) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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| | Re: mobile robot books
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Accessing the Borenstein thing seems to be a problem quite a few are having. I got a few messages questioning how I eventually got in. Instead of responding to all of them, I figure I'd post it to everyone. Below is the message from Sriram to me. It (...) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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| | Re: mobile robot books
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I think if you access the file via the web at port 80: ( (URL) than by ftp , you might have luck scott in ann arbor (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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| | HandyBoard's Baud rate
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My name is Micah Krider and I asked for the information on changing the baud rate on the handyboard to communicate serially. You sent me the following code to communicate serially: void xxxxxx(int c) { while(!(peek(0x102e)&0x80)); poke(0x102f,c); } (...) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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| | Re: Adapting the LMD18200 (CORRECTION)
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Matt Harlan found a mistake in the following drawing. (...) Glad someone checked it, yup, the drawing is wrong. pin 3 on the LMD18200 goes to pin 2 on the handyboard, and pin 5 on the LMD18200 goes to pin 1 on the handy board. Sorry for the trouble (...) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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| | Re: mobile robot books
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The address should be ftp.eecs.umich.edu/p...le/johannb ^ not just eecs.umich.edu/ from netscape ftp://ftp.eecs.umich...le/johannb anonymous login works for this address. I had the same problem too! matt (...) ___...___ Matthew J. Harlan Cornell (...) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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| | using Buffalo with the HB
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Ronan -- I don't think it's the LCD per se that is causing problems, but rather the fact that the HB runs the 6811 in special mode. The main effect of this is that the interrupt vectors, including the reset vector, live at $bfc0 to $bfff rather than (...) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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| | Re: mobile robot books
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In a message dated 96-09-29 18:58:39 EDT, you write: << Subj: Re: mobile robot books Date: 96-09-29 18:58:39 EDT From: mar@cooper.edu (MAR ERICSON) To: sriram@ds5500.cemr.wvu.edu (Sriram Tirunellayi) CC: handyboard@media.mit.edu > the book titled (...) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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