Subject:
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Re: Is there a device that...?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 15 Sep 1999 16:39:02 GMT
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Original-From:
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Chuck McManis <cmcmanis@mcmanis.#Spamless#com>
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Viewed:
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803 times
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One manufacturer of such a device is Fascinating Electronics of Oregon.
They make a device that hooks to your serial port, you send it "commands"
and it answers. The board has a/d inputs digital inputs and outputs a relay
output, etc. It works by talking to an on board 80552 that is running a
control monitor.
If you get a true C compiler for the HB (either GCC or ICC11 will work
fine) you can do much the same with a handyboard. Write a simple program
that waits for input on the serial port and then returns the status to the
PC. A more cost-effective solution was the Miniboard and even had a program
that was mostly there called HEXMON or something similar.
Driving a parallel port directly is possible, but as Parallax will tell you
it is fraught with compatibility dangers (their original BASIC Stamp used
the parallel port for communication.)
--Chuck
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Message has 1 Reply:
 | | Re: Is there a device that...?
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| I'll vouch for the efficacy of the Fascinating Electronics board. I got one years ago after reading the series in Electronics Now/Radio-Electronics using it as a weather monitor. It works fine connected to an HP48 calculator for control of I/O as (...) (25 years ago, 19-Sep-99, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Re: Is there a device that...? [DAT]
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| I am currently using my parallel port for the same application. I am not sure how specific your question was, but the output voltage is 5Vdc. However, remember that this is a logic level which means it will not give not give you more than ~20mA ( I (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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