Thank You all for reply !
I not intend to do schematics verry complicated...I look at Huang schematic and I think it's possible to re-use many of passive LCD I have. The hardware it's ok for me; I wonder if I can use my code for termometer with 7 segm. - LED with this schematic; maybe it's possible to connect DS18B20 to pin 4 of 16F648 ? "Additional step you have to include to code is to invert all LCD signals once in every 1-2ms. This way you generate needed AC waveform for the panel."
I wrote code for termometer with LED display, common anode and common cathode. Which of them will be better ?
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