OT : panel meters?

Archiver

How exactly do panel meters work? Do they just display an analog voltage?
For example, my application would use one to display a temperature off of a
thermistor. Would any additional components be needed, or is it a straight
interface?

Thanks,
Jordan

Archiver

Usually they are 0 to 200 mV. Usually they have straps such that you can
place the decimal point wherever you like.

External resistors in a voltage divider are used to scale this to whatever
you want.

In conjunction with the PWM command it is a pretty inexpensive way to
display a quantity. There is a discussion at;

http://www.phanderson.com/stamp/

Peter H. Anderson, Morgan State University
pha@p..., http://www.phanderson.com

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Original Message

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From: Jordan Wilson <bloodspurt@h...>
To: basicstamps@egroups.com <basicstamps@egroups.com>
Date: Sunday, May 21, 2000 5:16 PM
Subject: [noparse][[/noparse]basicstamps] OT : panel meters?


:How exactly do panel meters work? Do they just display an analog voltage?
:For example, my application would use one to display a temperature off of a
:thermistor. Would any additional components be needed, or is it a straight
:interface?
:
:Thanks,
:Jordan
:
:
:

Archiver

ICL7106/7107 3 1/2 digit A/D converter from Intersil or Maxim is a device
can be used in digital panel meter.
O/P is directly connected to LCD/LED display.

>From: Jordan Wilson <bloodspurt@h...>
>Reply-To: basicstamps@egroups.com
>To: basicstamps@egroups.com
>Subject: [noparse][[/noparse]basicstamps] OT : panel meters?
>Date: Sun, 21 May 2000 15:16:28 -0600
>
>How exactly do panel meters work? Do they just display an analog voltage?
>For example, my application would use one to display a temperature off of a
>thermistor. Would any additional components be needed, or is it a straight
>interface?
>
>Thanks,
>Jordan
>
>
>

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