 | | GP1U52 and Polaroid 6500 Sonar in the UK
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Does anyone know of a UK source of the 2 above components (Not Maplins or RS)? (23 years ago, 14-Nov-01, to lugnet.robotics.handyboard)
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| | New LEGO Robotics Web Page
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All, The University of New Mexico's LEGO Robotics page has been extensively updated. Please drop in and check it out: (URL) In short, we build autonimous robots out of LEGOs and control them with the Handyboard. Make sure and check out the 2001 (...) (23 years ago, 13-Nov-01, to lugnet.robotics.handyboard)
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| | PLEASE I NEED HELP
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Hi! I see that i've a real common problem, that's it: Now, i'd read "Windows Serial Line Debugging" and i'd follow its test sequence. But my problem still remain, on I/C board, i notice that, untill the complete discharge of the mainboard C3 (...) (23 years ago, 12-Nov-01, to lugnet.robotics.handyboard)
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| | Re: IR port
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Am Sonntag 11 November 2001 22:04 schrieb Fred G. Martin: (...) Aaahhh, 6.81K gives me 43kHz - I think I will have a look at some higher values. I did not know that the HC132 could be that much of a difference! Big THX! Chris (23 years ago, 11-Nov-01, to lugnet.robotics.handyboard)
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| | Re: IR port
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see the v1.21 parts list in the hardware section, for the following info: re: R4's value. Depending on the variety of the manufacture of the HC132 chip, R4 should be either 3.83K (Digikey 3.83KXBK-ND) or 6.81K (Digikey 6.81KXBK-ND). To test this, (...) (23 years ago, 11-Nov-01, to lugnet.robotics.handyboard)
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| | IR port
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Hi $ALL! I just assembled a handyboard. The assembly documentation (hba.pdf) says, that there should be a ~40kHz square wave at pin 2 of U9 (HC04). My frequency counter shows 72 kHz... So I took a new capacitor (682) and a new resistor (3k83) but (...) (23 years ago, 11-Nov-01, to lugnet.robotics.handyboard)
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| | RCX to Handyboard
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Is is feasible to have an RCX 'talk' to Handyboard via their respective IR systems?? Which one would be the easiest to program to understand the other? (23 years ago, 8-Nov-01, to lugnet.robotics.handyboard)
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| | Inaccuracy Sonar Reading
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Hi there… I have downloaded the sonar.c and it is running properly. In order to calibrate the sonar, I have placed my robot in a different distance from the obstacles. From all the obtained data, the reading always ~ 6cm or ~13cm more the actual (...) (23 years ago, 6-Nov-01, to lugnet.robotics.handyboard)
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| | Re: Barry Brouillette's GP2D02 Page?
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(...) Hi, Sorry for the delay in fixing this. I left SGI two years ago and they finally killed my page. The content is back up and should stay up at: (URL) (23 years ago, 6-Nov-01, to lugnet.robotics.handyboard)
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| | Optical mouse
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I want to interface an optical mouse with the Handyboard for positioning purposes. What is the best and the easiest way to do that! The oprical mouse that I have has USB nad ps/2 port. Q1: Do I use the handyboard's (serial interface and Battery (...) (23 years ago, 30-Oct-01, to lugnet.robotics.handyboard)
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