... LED CONTROLLER CARD SpecificationIndustrial PerformanceAdopt industrial Chips, low voltage to start, +5 V voltage reverse protection;DIP-chip ... file.Detailed development documentVC, VB, Delphi develop package, dynamic library DEMO and source code;Buttons, ... ApplicationsWireless application: Highway GPRS advertising, community wireless LED display;Commercial applications: shops, drugstore,chain stores ...