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What is the recommended method for connecting motors that draw over 1Amp. to the L293D chips?? Can this be done at all? -SB (29 years ago, 22-Feb-96, to lugnet.robotics.handyboard)
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| | Re: Weird LCD problems
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Fred, (et al) Actually I did test to make sure that the LCD was receiving the signal. And indeed it was. I did this before I posted and thought I made it clear. So I guess my problem should have been directed elsewehere since it is not entirely HB (...) (29 years ago, 22-Feb-96, to lugnet.robotics.handyboard)
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| | RE: motor control
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There is no recommended way. I've got a pretty simple bipolar H-bridge design that you can connect up pretty easily using an opto isolator and get 3 - 6amps of control and software compatibility. Unfortunately I'm not in the kit business nor do I (...) (29 years ago, 23-Feb-96, to lugnet.robotics.handyboard)
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| | IC 3.1 Beta4 occasioanlly hangs up Geoport
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Fred, Randy: I noticed that when I use IC 3.1 B4 while I am online (Power MAC 7100/66, Geoport, MACPPP connection) it hangs up (occasionally) the line. It mostly happens if Netscape was used prior to IC invocation. Couple of time it happened in (...) (29 years ago, 23-Feb-96, to lugnet.robotics.handyboard)
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| | Technical support is up to all of us now
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Dear Handy Board Users, I am starting to get hit with e-mail from individuals who are having trouble with their Handy Boards. I don't have the time to help people with assorted technical problems on this kind of basis. Therefore, I would urge all (...) (29 years ago, 28-Feb-96, to lugnet.robotics.handyboard)
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| | Best way to capture rising and falling edges?
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Hi, It's me again. If anyone has followed the questions I have been asking, you'll see that I am learning, slowly, how to get an interrupt routine trigger on both rising and falling edges of a PORTA line. After much help from this list and Fred (...) (29 years ago, 28-Feb-96, to lugnet.robotics.handyboard)
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| | Handyboard vs. Botboard 2
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Dear Fred and other handyboarders, This might be a strange question for this group. I am busy making a little robotlike object. As I have several Basic STAMPs laying around, I am making it multiprocessor - however, STAMPs don't have interrupts, (...) (29 years ago, 29-Feb-96, to lugnet.robotics.handyboard)
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| | Re: Handyboard vs. Botboard 2
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The botboard does not incorporate motor drivers; the Handy Board does. The handy board is smaller, and fits into a commercial plastic enclosure with the battery pack underneath. The botboard has prototype area; the handy board does not. The handy (...) (29 years ago, 29-Feb-96, to lugnet.robotics.handyboard)
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| | Zero Page Variables?
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IC gurus, I am trying to port some of my IR routines to IC and I am having trouble. I use some bit operations on variables, but this means that the variables must be in the ZP. I converted the variables to be anywhere in the RAM but then I have to (...) (29 years ago, 29-Feb-96, to lugnet.robotics.handyboard)
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| | Re: Zero Page Variables?
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David, I believe that IC never actually supported zero page variables; it was documented as a feature but never implemented. Your solution of using the indexed registers is what I was going to suggest. -Fred -- This message was composed using (...) (29 years ago, 29-Feb-96, to lugnet.robotics.handyboard)
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