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BASCOM-AVR : LCD 20*4, C2004A, on i2C. E, E1, E2 signals and PCF8574 prob : REPLY

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I check this in non-arduino LCDs and non-Arduino PCF8574 plate. Maybe Proteus model of PCF8574 is not fully correct, but in hardware don't work too. Chipsets of LCDs is unknown (compound drop), but while connected wia 4- or 8-bit directly to controller they works fine like HD44780 & KS0066 compatible.

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