Display

The proff : A picture A movie (3,7Mb)

Connections

Parallel port	The LCD	Remark
Pin 1	RS	10Kohm pull-up
Pin 2	Data 0	Not connected in 4-bit mode
Pin 3	Data 1	Not connected in 4-bit mode
Pin 4	Data 2	Not connected in 4-bit mode
Pin 5	Data 3	Not connected in 4-bit mode
Pin 6	Data 4
Pin 7	Data 5
Pin 8	Data 6
Pin 9	Data 7
Pin 14	R/!W	10Kohm pull-up
Pin 16	Enable	10Kohm pull-up

To do
As you can see on the picture it draws power from a 9V battery. My next experiment will be to find out if it is posible to skip the battery and voltage regulater. According to the lcd's datasheet it only needs 2-3mA which is no problem for the parallel port.

Supporting documents

Datasheet : PC2402A.pdf
Datasheet : HD44780.pdf