 | | Re: AC adaptor
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Please see the FAQ for the answer to the adapter question: (URL) the L1, that substitution may or may not work. try it; if your motors don't work right, it could be that. Fred In your message you said: (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | What types of IBMs does IC Run on?
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Greetings, I have recently gotten the free version of IC working. It was a battle and it seems that the type of host processor makes a difference. Running IC on an old IBM XT (8088) CPU produces the following error whenever a routine using floating (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: IC Floating Point Bug
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(...) <snip> I get the same results with version 3.2. Curiously, if I remove the last digit in the a = 1.570796 statement (or replace it with a zero), then I get the correct answer. I guess it has something to do with specifying too many significant (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | AC adaptor
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I figured out all of my problems were caused by using an ac-dc adaptor with the wrong voltage. What is the correct output voltage for the adaptor that should be used with the handyboard? Also, I cannot find L1, the iron core inductor. I ordered my (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Update
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Sorry, not the handyboard but the expansion board Bill James | work: 972.480.2306 Product Test Specialist | Pager: 972.598.6201 w-james2@ti.com Precision Analog & Interface Department Polymath in Training | Have Spacesuit will Travel (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Update on the expansion board.
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Fred, I was wondering how the beta test of the handy board is going. Is the board a double sided board or a multilayered board? When will you be posting the artwork, I am interested in trying to make one? Thanks and keep up the good work. Bill James (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Various Basic Issues
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(...) Joseph, I am new to the handyboard myself but as a professional software engineer, I can give you some pointers on the software issues. When they say that IC is a subset of C they mean that there are certain ANSI C features that will not be (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: 68hc11F1
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(...) For the H-bridges look for the LMD18200T at (URL) also the LM689 for motion control, using PWM as output and quadrature encoder (4bits?) as input. However I think the command that must be sent are 8 parallel bits :( (...) | Remi Desrosiers | (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: 68hc11F1
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Hello Mike, Sorry for the cryptical message, I don't have a handyboard running at 16 Mhz, i made my own board, currently with a 68hc11F1(@16Mhz), 32 K external RAM, 32k External flash. My programs are run from the flash, leaving aprox 32 k of stack (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Digital In and Analog Out Header
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Hello All, Just a quick question, On the handyboard there is a socket header for the 7 analog inputs, and 9 digital outputs. There is actually three rows of headers for these inputs. I am enquiring as to what are the three headers for? I am (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Various Basic Issues
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<snip!> (...) I believe it is a subset of striaght C. However, I never learned C: I junped straight into C++ before even getting my HB. However, programming was of no dificulty to me, even thought I only knew C++ (...) IC will work on a computer. I (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | FS: Extra HandyBoard for sale
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I have one extra HandyBoard that I will sell if anyone needs one. It is a fully assembled and tested board with Serial Interface/Charger Board and cases. It has never been used in a project (about 2 months old). I built two of these and find that I (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | [Fwd: Various Basic Issues]
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Content-Length: 1148 (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | IC Floating Point Bug
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I've been making use of floating point for the first time on the HB and am having problems. The following program demonstrates the kinds of bugs I've been encountering: ----(cut here)---...--- int main() { float a; float b; float c; /* This program (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | sonar.c for the handyboard
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Hello, I have a handyboard and 6500 series poloroid ultrasonic ranging system. I have downloaded the sonar.c programs used to drive the transducer for distance measurements. There appears to be a problem, or atleast I think there is, with it. The (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Sumo-Robots
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look at (URL) for th Dutch sumo-robotics Greetz Emiel ---...--- (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: motor power problems
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In a message dated 98-07-24 20:49:35 EDT, you write: << Has anyone had similar problems, and if so how did you solve them? I know there's a way to provide a separate power supply for the motors, but I'd rather not cut traces on the board except as a (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Various Basic Issues
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Howdy from Texas. I have set myself the goal of making a robot with the handyboard -- just for the learning of it. Until 2 days ago I had zero knowledge of electronics, although I am teaching myself using some kits and books. I also do not know C (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: troubleshooting
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ok, i finished the digital input circuit and the first time i turned it on both green and red lights stayed illuminated so i checked the orientation of all the chips and they were correct so i removed and reinserted them for good measure. This (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: IR Emmiter and Detector for RW Pro
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Hi ! You get a fantastic collection of datasheets and component specs at www.questlink.com regards..... Rajaraman. -----Original Message----- From: Javaid Iqbal <javaid@student.unsw.edu.au> To: Handy Board <handyboard@media.mit.edu> Date: Sunday, (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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