Re: Building HAL (club seeks computer/motor interface)

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#2392

From: Sean Perry
Date: Fri, 09 Dec 1994 06:28

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>         Does anyone know of a commercial kit or simple method of turning
> on and off motors from a BASIC program?
> 
>         While I'm asking, how about getting sensor input _into_ the computer?
> 
> Thanks, 
>         Martin
> 
Matin,
	Perhaps one of the simplest ways to play with input is by 
rewiring joysticks.  Any older computer (Commodores, TI 99, etc) has 
ports for plugging in joysticks.  Joysticks, in turn, are easy to take 
apart.  If you pay close attention to which wires are connected to which 
position (up, right, etc.), you can splice in gizmos like photoelectric 
diodes, mercury (motion) switches, or even two slightly separated copper 
strips (to detect moisture).  The older computers have basic commands 
for reading joystick commands.  As part of your program, you simply set 
up a loop to check each joystick position; if the particular sensor or 
switch is activated, your robot can respond with actions or statements 
("I feel motion.""The room is dark." And so on.)
  If you have any questions or outrageous sucesses, drop me an electronic 
line.

Sean Perry	sperry@efn.org		(503) 995-8338

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From: Sean Perry <sperry@efn.org>
Subject: Re: Building HAL (club seeks computer/motor interface) 
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