 | | IR Transmitter Boards
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thanks to all those who requested information, I have decided to post it here rather than send out 30+ email messages. This is a beta test of an IR transmitter board for the HB or any other use. The board is about 1 in square, either round or square (...) (29 years ago, 5-Mar-96, to lugnet.robotics.handyboard)
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| | Group purchase for Vector compass and BAsic stamps
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I have been offered a chance to get the following items at a discount from a vendor that I use. I have decided to pass the savings on. I need at least 5 of each for this to work. Vector 2X Electronic Compass $41.00 or $45.00 Parallax Basic Stamp Sip (...) (29 years ago, 5-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Yellow Leds & Battery
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(...) are you sure you have enough voltage on the adapter? You need at least 16- 18 v open circuit, or an adapter rated for 12 volts at 500 mA. Your symptoms are consistent with an adapter that is rated with too little voltage. (...) Not sure what (...) (29 years ago, 5-Mar-96, to lugnet.robotics.handyboard)
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| | Yellow Leds & Battery
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Hi, I've got a little problem ... When I connect the DC adaptor to the interface board (which is connected to the HB which is OFF) after a while the yellow led of the Intf Board get dimmmer and dimmer ... it light off .. It appears to happen when (...) (29 years ago, 5-Mar-96, to lugnet.robotics.handyboard)
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| | Accessing the SCI.
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Hello Handy board people, I have an application where a computer needs to transfer data to the handy board under an IC program through the serial communication link. Are there any IC commands to do that? Any suggestions? Rachid (29 years ago, 4-Mar-96, to lugnet.robotics.handyboard)
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| | New IR routines and as11_ic for mac
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Fellow HB friends, With the creation of the new folder for distribution, I decided to put it to use. I have uploaded the following files to cher.media.mit.edu: 257 "/pub/incoming/ic_co...ib/dnegro" is current directory. -rw-r--r-- 1 ftp system 5239 (...) (29 years ago, 3-Mar-96, to lugnet.robotics.handyboard)
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| | Re: IC file site
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(...) ke (...) I set up a place on cher: ftp://cher.media.mit...c_contrib/ make yourself a subidrectory in there and upload away. -Fred (29 years ago, 2-Mar-96, to lugnet.robotics.handyboard)
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| | IC file site
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(...) I totally agree. There are several thigns that I have written that I would like to share, but I don't know of a place to do it. Clint, maybe you'd like to start up a little stash of IC files? Or should there just be a spot on cher? *Brian (...) (29 years ago, 1-Mar-96, to lugnet.robotics.handyboard)
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| | IC programs?
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One of the things that has always perplexed me about Interactive C is the lack of a software support site. It seems that with all of the people using it to write programs for their robots, surely someone would have started collecting/distributing (...) (29 years ago, 1-Mar-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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| | 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: 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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| | 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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| | 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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| | 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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| | 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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| | 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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| | 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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| | motor control
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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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David -- Soldering d0 to +5v certainly can't help; it should be connected to the data bus (pin 9 of the 6811, pin 11 of the RAM, and pin 3 of the 'hc373). (see the cpu and mem schematic). With board power off, check continuity among these (...) (29 years ago, 22-Feb-96, to lugnet.robotics.handyboard)
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