Controlling a LCD Display with a digital pot

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Steve001
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Controlling a LCD Display with a digital pot

Postby Steve001 » Wed Aug 29, 2012 10:47 pm

I have used in one of my projects the above display and digital pot so that the user can adjust the screen contrast via push buttons.

The X9C103PZ is digitally controlled potentiometer. This device consists of a 99 resistor
Array, wiper switching network, a control section, and non-volatile memory. The wiper position is controlled by the CS, U/D, and INC inputs. The position of the wiper is stored in nonvolatile memory and then is recalled upon a power-up operation.

I have used 2 EB016-002 1 is for the LCD Display due to it’s size and the other is for the digital pot and pull up resistors

I hope this is of some use and happy experimenting

INTERSIL - X9C103PZ - IC, DIGITAL POT 10K Farnell 1208129

EVERBOUQUET - MC1604B-SBLW - LCD MODULE Farnell 9449086

sorry for the poor photo's

will upload a drawing soon


Steve
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medelec35 (Wed Aug 29, 2012 11:18 pm) • kersing (Wed Aug 29, 2012 11:19 pm) • Enamul (Wed Aug 29, 2012 11:40 pm) • Benj (Thu Aug 30, 2012 10:30 am) • JohnCrow (Thu Aug 30, 2012 6:01 pm)
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Re: Controlling a LCD Display with a digital pot

Postby Enamul » Thu Aug 30, 2012 4:55 pm

Hi Steve,
Angle of taking picture might be an issue...still we can see your good works!
Enamul
University of Nottingham
enamul4mm@gmail.com

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Re: Controlling a LCD Display with a digital pot

Postby JohnCrow » Thu Aug 30, 2012 6:07 pm

Hi Steve

When I photograph my projects, I find I get the best results as follows
My bench is under a west (almost) facing window
Photograph in the morning with a bright sky.

This way I find I dont need flash, which can cause reflections.
I also tend to turn up the ISO rating on the camera to get a better shutter speed.
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Re: Controlling a LCD Display with a digital pot

Postby Steve001 » Thu Aug 30, 2012 8:16 pm

my photos are usully better than that . . it was late at night and my light was causing refections on the table and the dispaly led back light was bright :(
and i tried to show that the circuit was working with different contrasts


anyway here is a drawing as prommised

parts are bellow

http://uk.farnell.com/intersil/x9c103pz ... t=120-8129

The display is No Longer Manufactured

http://uk.farnell.com/everbouquet/mc160 ... dp/9449086


happy experimenting

Steve
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Re: Controlling a LCD Display with a digital pot

Postby JohnCrow » Thu Aug 30, 2012 9:24 pm

Digital Pots are on the list of things I want to play with too. Look like an interesting device.
Just need a few more hours in the day :)
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Re: Controlling a LCD Display with a digital pot

Postby Steve001 » Fri Aug 31, 2012 7:19 am

JohnCrow wrote:Just need a few more hours in the day :)

Know that one ............... :lol: :lol: :lol:
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