Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!hplabs!hpfcso!hpfcbig!bame
From: bame@hpfcbig.SDE.HP.COM (Paul Bame)
Newsgroups: sci.electronics
Subject: Re: Search for a Microprocessor
Message-ID: <6560009@hpfcbig.SDE.HP.COM>
Date: 4 Mar 91 17:09:15 GMT
References: <8661.27cc7da1@jetson.uh.edu>
Organization: HP SESD, Fort Collins, CO
Lines: 30

> I am searching for a microprocessor that was
> discussed in one of the electronics magazine. The
> one I am interested in had a built in Basic
> interpreter that allowed the EPROM to be programed
> in straight basic.

Someone else suggested using a small, old, BASIC computer
and I second that motion.  Not because I like BASIC or
those cheap keyboards, but they've already done all the
work and can be had at swapfests for about the price you
might pay for the BASIC uP.  By the time you'd wire a uP
and add case, display, and power supply, you'd spend much
more money and time.  Of course, if it's for the learning
experience, who cares?

> I am going to use two of the Sharp
> inferred [sic] modules sold by Radio Shack as the
> transducers.  My goals are to have four readouts
> available which are feet per second, meters per
> second, miles per hour, and kilometers per hour.

Be sure to figure out the expected error and/or time measurement
resolution so you can space the sensors appropriately to
gain the accuracy you require.  You may want to use at least
3 sensors so you can figure out and maybe compensate for
non-constant speed through the trap.  Heck, maybe use 8
sensors!

			-Paul Bame
			bame@fc.sde.hp.com	N0KCL