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help : Associate 2 LCD 20x4 >> like 1 LCD 20x8


New member
Hi All.
I am newbies in LCD.
My LCD 20x4 work fine with LCDproc and LCDsmartie.

But i i want to associate :
2 LCD 20x4 >> like 1 LCD 20x8
or 2 LCD 20x4 >> like 1 LCD 40x4

anyone know where I can found the circuit?

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CF Tech

The 40x4 looks like 2 pieces of 40x2 (all lines common except the CS1 & CS2). I do not think it is possible to do what you want without the software being involved. 20x8 is not common at all.