Author Topic: ICL7107SCPLZ and HD44780 LCD display - simple voltmeter?  (Read 1995 times)

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Offline dds

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ICL7107SCPLZ and HD44780 LCD display - simple voltmeter?
« on: July 05, 2011, 10:53:02 am »
Hi,

I would like to build simple voltmeter with these two, but I don't know where to start. Any idea?

thanks.
 

Offline david77

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Re: ICL7107SCPLZ and HD44780 LCD display - simple voltmeter?
« Reply #1 on: July 05, 2011, 12:28:08 pm »
Well, using the 7107 and some LED displays you get a voltmeter, just look at the 7107's datasheet.
The 7107 is a fully integrated 3,5 digit voltmeter, with driver circuits for 7 segment LED displays.

The HD44780 LC-display is of no use together with the 7107.
If you want to use a dot-matrix LCD you something that can drive the thing and something that does the A/D conversion for you. Probably some sort of microcontroller + appropriate software.

 


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