The code is released under the GNU General Public License. This is the firmware and PCB for the SerialGLCD board by Kristian Lauszus, TKJ Electronics 2012. For it to work move ks0108_Arduino.h into the glcd library folder like so: Arduino/libraries/glcd/config/ks0108_Arduino.h Also remember to solder the solderjumper according to your Pinout (see http://www.arduino.cc/playground/Code/GLCDks0108). The glcd library can be found at the following link: http://code.google.com/p/glcd-arduino/ For more information see my blog at http://blog.tkjelectronics.dk/ or send me an email at kristianl at tkjelectronics dot dk.