 | | HB to create video displays?
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I am thinking of putting a wireless board-level color or B&W camera on my Mobot and I have a question for all the techies. Is it possible to use one of the different outputs on the HB to interface with the camera to put diagrams on the live picture? (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Need Handy Board memory debugging software
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Gentlemen: I'm having a bit of trouble with my handy board's display. The board itself works, and I've swapped out old display for a new one. I suspect the memory or transparent octal addressing latch to be at fault. I understand you've memory (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Shaft encoder sensors...
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Zagros Robotics sells them for $7.00 ea US (URL) Message----- From: John Vaughn <vaughn@HWS.EDU> To: Kat <khorvath@up.edu> Cc: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: Monday, February 22, 1999 10:23 AM Subject: Re: Shaft encoder (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR question
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I found that article listed at: (URL) It was in the January 1999 issue, titled: "Multiprocessor Communications Part 1: Methods for Communicating " Maybe it wasn't 68HC11 specific after all. Gerald (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR question
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James, I'm not sure if this is the correct answer since I am new to the Handyboard, but I think it is: If you do not disable the IR Input Interrupt, your transmission could be 'interrupted' by the receiving information and this may mess up your (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | IR question
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Hi Max Davies and everyone, In your documentation (irinfo.txt), you said that we need to disable the IR input interrupt routine before transmitting another signal, what is the reason behind that ? As the IR input and output are both interrupt driven (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | L.E.D. question.
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What are the L.E.D. voltage ratings for the L.E.D's on the interface board I purchased one(at Radio shack) with a rating of five volts. Which should be O.K right? any help would be appreciated. I have to improvise to get such components cheap. Thanx (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Shaft encoder sensors...
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Kathy, Digi-Key has three kinds. The first two look like the "Mobile Robots" type: QRB1114QT-ND $1.58 QRB1134QT-ND $2.83 The third one looks like a much more compact arrangement: QRD1114QT-ND $1.50 These are on Page 552 of the January-March catalog. (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Shaft encoder sensors...
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(...) The Hamamatsu P3062-01 IR photoreflector mentioned in MR was discontinued and replaced by the P5587. This chip has the identical pinout and dimensions as the original. I ordered several from Hamamatsu last year but they are pricey (~$7/ea) in (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | photoreflective sensors
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Kathy($B!)(B) wants photoreflective sensors for shaft encoder. How about the products of Toshiba? See (URL) ***...*** takatsu@isenshu-u.ac.jp School of Science and Technology, Ishinomaki Senshu University 986-8580 Ishinomaki, Miyagi, JAPAN (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Shaft encoder sensors...
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Can anyone help? My team is trying to get a shaft encoder to work, but cannot find a chip that will work correctly to count the black and white stripes on the wheel. We would like to use a chip which can be connected directly to the digital inputs (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Stupid Sonars
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I have a extremely complicated two polaroid sensor set up going on... I had a diode connected to each of the ECHO lines so that I can combine the two lines together... However, no signal passes through this setup... However, I have validified the (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Timer display
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Hi, I would like to display a clock on the LCD display using the real-time interrupt of the 6811. But it does not seen to work at all. Does anyone have done a similar clock on the handyboard ??? Regards, James (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Re: IR output
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In response to: (...) Could a hardware expert (Fred?) please give a more definitive answer to this? What value resistor should be used? After extensive IR use with just an IR led and no resistor my transmission circuit eventually died... I guess I (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | lib_rs.lis, nevermind.
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Sorry, I wasn't thinking, doh! (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Sharp Ir and Eltec 442 Pyro detector
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Hi guys, I was wondering if anyone of you could help me. I'm trying to connect a hacked version of a Sharp GP1U58Y Ir detector(hacked so it is now analog instead of digital) to the HB so as I could use it for Ir Proximity sensing or distance (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | lib_r2.lis ?
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IC can't seem to find: /usr/local/lib/ic/lib_r22.lis Is this important? Where is it (not anywhere on my box.) Thanks all. (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Problem
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Yes there are two four pin connector along the fornt edge of the expansion board that connect to J13 and J8 on HB, one 8 pin (2 rows of four) that connects to jumper J6 on the HB and one 10 pin that plugs into the expansion bus J3 on the HB. Hope (...) (26 years ago, 22-Feb-99, to lugnet.robotics.handyboard)
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| | Downloader, nevermind
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I have the ic-src-unix file, and see it in the tree, sorry. (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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| | Diodes for sonar don't cut it
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I promised to update all you ultrasonic types on my progress (or lack thereof) in connecting two sonar modules to the HB. Well, I still haven't figured out if there's a way to connect two sonar module echo lines to the same TIC port on the HB. The (...) (26 years ago, 21-Feb-99, to lugnet.robotics.handyboard)
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