needs only 2 I/O Ports
4 Lines 20 character
Usually it's connected just like any standard LCD Display - using 4 Data pins, RS,RW and E.
On the back of this Display you'll find a solder bridge, that allows you to bring it to so called serial mode
In serial mode you will just have to connect 5 Volt Power supply
, SID (Serial Input Data) and SCLK (Clock Line) to operate the
Display.
Optionally you can use more I/O Pins to switch display
illumination on/off or to read from the display by using SOD (Serial Output Data) .
I made a driver for the ETHERNUT board and Nut/Os.
Get the driver for Nut/Os and a simply demo programm
More Information on the Display can be found at the Webpages of
Electronic Assembly GmbH
I purchased the Display from Conrad Elektronik .
( Part No. 181863-14 )