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I'm looking for a circuit for direct driving this LCD ...

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mabauti

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4 Digit passive LCD display with a PIC16f628 (or could be a f84A)


ideas , comments are welcomed :)
 

The LCD in question appears to have more pins than the microcontroller, I could not expand the image to get a better look. Unless you are adamant about using this display, I recommend obtaining a hitachi compliant alphanumeric display (onboard driver), this will require fewer I/O pins and less uC code.
 

Re: I'm looking for a circuit for direct driving this LCD ..

this is the pinout of the LCD

is there a way by adding only a few components like transistors Rs and C's?
 

Re: I'm looking for a circuit for direct driving this LCD ..

mabauti said:
4 Digit passive LCD display with a PIC16f628 (or could be a f84A)


ideas , comments are welcomed :)
Click to expand...

I have been designed a product with a this type LCD,the schematic as below.
39_1177046472.jpg

Maybe it can give you some help!
 

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