... and its source code;Buttons, switches, timing, GSM / GPRS wireless communications and other typical applications;16,32 fonts communication protocol ... information dissemination;Community, school Information Cluster Mass-sending System; Wireless LED Display Board Controller LED DISPLAY MODULE CONTROLLER LS-D3 ... *128 pixel;dual color 1024*64 pixel,dual color 512*128 pixel;Scan mode1/16,1/8,1/4, ...