 | | HB for sale
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Anybody who is interested in buying "used" HB ($230 + shipping) - send us mail. The HBs was bought several months ago and was never used - we were waiting for commercial IC 3.1. Thanks, Alexander A. Chaihorsky ULTRA-RES Corp. 1395 Greg St., Suite (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Re: Motor LEDs not illuminated
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Hi Greg, Maybe you swapped the HC374 chip and the HC244 that sits next to it? Maybe the HC374 is in backward? Just my two cents - hope that helps. - Prabal (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Radio shack tape measure
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I found the page which detailed using the radio shack tapeless tape measure for its ultrasonic tranducer. Its at: (URL) this text he mentions getting polaroid units for $35. Can anyone confirm this? If so where are they available? - Garth Webb (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Motor LEDs not illuminated
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In building a Handyboard, all was well until the Motor Output Circuit. When running testmotor() none of LED1-8 illuminate. The LED polarity is correct, the debuggin steps in the manual seem to check out. I've built a 6.270 board successfully before (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Re: Fatal Internal Error
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(...) Are you using the freeware DOS version of IC? If so, please see the FAQ on this problem at: (URL) problem has to do with text file linefeed termination. The FAQ should help you fix this. -Fred (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Fatal Internal Error
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When I try to load the sony-ir.icb file, I get booted out of IC and receive the following message: Fatal Internal Error Illegal line in .S19 file I have tried reloading the .s19 file but I still receive the same message. If I don't load the (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Re: LCD SCREEN STUFF
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(...) Here's the pertinent code in the lib_hb.c file: /* printing to the LCD: **WARNING** printf's will wedge once the print buffer becomes full if system printing is disabled */ void system_print_on() {bit_set(0x39, 0b00000001);} void (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Re: some [Q]'s (fwd)
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Yoni, (...) Use snapable male header strips. They come in lengths from a few pins to more than 30. They're simply .025 inch square metal pins stuck in a strip of plastic on .1 inch centers | | | | | | They kinda look like this. ===...=== | | | | | | (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | some [Q]'s (fwd)
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In case you didn't see this the first time... Any response to any question will be much appreciated: Second Posting: Hi. I have a few questions related to the handyboard: 1) In the "How to connect DC motors to HB" paper, it says to use .1 inch male (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | preprocessor directives
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(...) Hi Brian, MIT has been using the precursor to IC 3.1 for several years. IC 3.1 is the first public release to support features such as the preprocessor ((URL) Integrating the preprocessor didn't happen back in 2.8x because it took a fair bit (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | Interactive C - Preprocessing?
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I have not been able to get IC to accept any preprocessor functions such as #define or #ifdef. The c code therefore looks pitifully informal - sprinkled with magic numbers instead of DEFINEd values. Does anyone know if it can be done? The manual (...) (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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| | LCD SCREEN STUFF
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I have heard that there is a way to turn of the LCD screen on the handyboard to save clock cycles. I have looked all around but cannot seem to find any info on how to do this. Is this possible and if so does it speed up the handyboard any? Someone (...) (28 years ago, 22-Oct-96, to lugnet.robotics.handyboard)
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| | Re: color sensors
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(...) It is a monthly or bi-monthly publication in large (11x17) format that a number of features relating to electronics. There is a column devoted to robotics that has featured some great stuff. I don't have the paper in front of me, but the info (...) (28 years ago, 22-Oct-96, to lugnet.robotics.handyboard)
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| | Re: board error
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Thnaks Prabal... The pcode must have been corrupted. When i tried with a new pcode file it worked fine. sriram (28 years ago, 22-Oct-96, to lugnet.robotics.handyboard)
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| | Re: board error
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Hi Sriram, Have you tried reloading the pcode_hb.s19 file into the Handy Board? Perhaps it has been corrupted. - Prabal (...) (28 years ago, 22-Oct-96, to lugnet.robotics.handyboard)
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| | some [Q]'s
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Hi. I have a few questions related to the handyboard: 1) In the "How to connect DC motors to HB" paper, it says to use .1 inch male headers to connect the wire leads to. Can anyone give me a less general specification for these male headers? 2) Is (...) (28 years ago, 21-Oct-96, to lugnet.robotics.handyboard)
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| | Radioshack ultrasonic tape measure
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I while ago I remember reading a web page where someone described using a radio shack tapeless tape measure for its ultrasonic transducer and reciever. They described how to modifiy it and what was what for using it with a micro controller. After (...) (28 years ago, 21-Oct-96, to lugnet.robotics.handyboard)
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| | board error
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hi, i've run into some problems with my board. When i switch on the reset button the motor leds(red) 0 and 1 are on. The green led (power ready indicator) is also ON. But the Interactive C version etc etc are not printed on the LCD including the (...) (28 years ago, 21-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, 21-Oct-96, to lugnet.robotics.handyboard)
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| | Unsubscribe
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Please unsubscribe me from the handyboard mailing list. Email: J.T.Hillebrand@lr.tudelft.nl Jasper Hillebrand (28 years ago, 21-Oct-96, to lugnet.robotics.handyboard)
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