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From: "Anthony Q. Bachler"
Subject: Re: 68hc11 A/D converter question
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Fri, 27 Dec 2002 06:34:43 GMT
NNTP-Posting-Date: Thu, 26 Dec 2002 22:34:43 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
Use the wiper on the pot as the output. That is the simplest way.
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what Osama bin Laden could never do,
took away our freedoms in exchange for
a false sense of security.
"spoisn" wrote in message
> I am building a single axis joystick for a robot. I will have to use
> a potentiometer(linear) in order to determine the joystick position. I am
> using the A/D on the 68hc11 and have connected a voltage divider circuit
> +5V <-----/\/\/\-------/\/\/\------GND
> fixed | pot
> resistor |
> Vout(To A/D on 68hc11)
> My problem is that Vout does not vary linearly. It changes faster at
> pot values and slower at higher pot values. Is there any way to fix this
> non-linearity? Any suggestions will be appreciated. TIA.
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