Is there I2C interface for 4x40 LCD?

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4x40 lcd (hitachi compatible) has different pinout other character lcd (1x8 4x20)  because 4x40 has 2 separate enable line , lcd split funny behave bit interleaved 2x40 lcd can't ghetto in regular i2c connection.  is there few-wires-as-possible solution ala i2c 4x40 or stuck 3 control, 4 data, , 2 enable lines per lcd? (edit can share data across multiple lcd provided enable lines done right) experiment uses i2c other function won't add burden if can still use i2c on lcd.

the i2c board lcd can find designed soldered directly onto lcd module , need rewiring or 3rd pcb board between lcd , i2c board deal pin difference, unless makes i2c board compatible 4x40?

there plenty of i2c io expanders want.  may have write own lcd library support them though.  1 io expander, use lot mcp23017 has 16 io lines - more enough run whatever lcd might want.


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