After replacing to a larger LCD in order to display more useful information about the engine.
|My DIY MS1EXTRA display device|
This new one accomodates 20 characters x 4 lines...
The DIY board Arduino connects to the Megasquirt ECU via RS232 and a TTL-to-RS232 converter as the Arduino's onboard serial communication ports speaks only TTL.
If anyone is interested in the Arduino code, I can be reached at email@example.com.