 | | Readings
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Fred- You left it unclear in an explanation to another letter. You were answering the fellow from India as to what readings one should see when useing a logic probe on the memory chip. You said that if one was stuck at 1 or zero-it might be (...) (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | Piezo Spkr Volume
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Is there any method of increasing the volume (amplitude) of the piezo speaker on the HB? Mine is extremely faint and can only be heard within a few inches from the board. (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | Expansion board Library
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Greetings, I have assembled my expansion board, mounted on the main board,running IC v3.1. Have downloaded expansion board libraries zip files,unziped and are inC/:Desktop/IC/ir/l...sion-libs. I have not been able to load expansion board files. Do I (...) (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | Handyboard for sale?
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If anyone has a handyboard w/wo an expansion board for sale. I would like to talk to you Jessemc@mail.utexas.edu (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board motor outs???
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if this wasn't answered... yes, all DC motor outs are still available. fred (...) (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | (no subject)
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i am sorry, but i have never readied that software. to debug, use a logic probe and check all of the 28 pins of the RAM chip. address, data, and enable lines should be flashing when the HB is turned on. if you see a line stuck at 0 or 1 that might (...) (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | Processor load
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1) Is there a way to print the actual processor load onto the screen ? or another way to see for example how much load a program causes ? 2) Does anyone know what resistors i need to produce a voltage divider to measure the voltage of the battery (...) (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | digital and analog port on HD
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Hi, I want to use the digital port as an analog port input. How should I convert the digital port to analog in using programming way ? I do not quite understand the explanation on the technical manual handout. if possible, how to convert the analog (...) (26 years ago, 17-Jan-99, to lugnet.robotics.handyboard)
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| | Polaroid 6500 Ranging System
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I recently purchased a 6500 ranging system and have connected it to the HandyBoard (HB) 1.2 Expansion Board. I am using IC ver 3.1 from Newton Research Labs and loaded the sonar.c code module provided through the MIT website. The HB passed all (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | Re: help again
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check that the RxD line on the hc11 is properly pulled up to +5v through R15. also, make sure you are *HOLDING DOWN* the STOP button until the BATT light goes off. this wasn't clear from your msg. finally, try getting the HB into boot mode with the (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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