This Arduino library is built upon a set of 'core' functions originally written by Crystalfontz. I've greatly extended the number of available functions and compiled it all into an easy-to-use library, including a couple example scripts.
The following are the functions available in the library. The (*) symbol designates the functions written by Crystalfontz. The rest I have added.
CFA835_Arduino Library Functions:
sendPacket() *
writeText(x, y, text) *
drawPixel(x, y, shade)
drawCircle(x, y, radius, line, fill);
drawLine(x1, y1, x2, y2, shade);
drawRectangle(x, y, width, height, line, fill);
readBacklights();
setBacklights(lcdDisplay, keypad);
setLED( LED, state);
getKeypress();
monitorKeypress ();
clearBuffer();
clearScreen();
restart();
validateCRC(data);
readContrast();
setContrast(contrast);
setCursorPosition(column, row);
setCursorStyle(style);
Webpage: http://nuclearprojects.com/blog/arduino-with-crystalfontz-cfa835-display/