... ensure stable communication; 3.High brigh LED panel controller LS-D2 led panel controller SpecificationIndustrial PerformanceAdopt industrial Chips, low voltage ... code;Buttons, switches, timing, GSM / GPRS wireless communications applications;16,32 fonts communication protocol and testing ... Information Cluster Mass-sending System ;LS-D2 led panel controller Parameter Item No.LS-D2(COM)Rangesingle color ...