Re: What voltage and current to control 1 segment of LCD ?
From: hihihi (SeeSignature_at_ForEmailAddress.nl)
Date: 07/03/04
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Date: Sat, 03 Jul 2004 12:44:44 +0200
John Fields wrote:
> On Fri, 02 Jul 2004 22:11:55 +0200, hihihi
> <SeeSignature@ForEmailAddress.nl> wrote:
>
>>It contains all the info displayed on the lcd.
>>Its like a I2C or SPI signal.
>>
>>I have allready connected it to the pin 13 of the parallel port.
>>Now i have to figure out what the signal says :-)
>
> Toggle the segments on a single digit on and off to find out which is
> which and how wide they are and how wide a digit is and which digit is
> which, then turn the anunciators on and off to find out where they are
> and you'll be done!
I am making progress :-)
Here is a picture of the signal for different range selections.
The data has been actually read by the computer from the pin 13 of the
parallel port.
So that part works.. I had never done it before..
http://home.wanadoo.nl/hihihi/pm2544/pm2544-amp-volt-ac-dc-ohm.dat.big.png
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