Program Controlled LED Lamp Controller Design

Most machine vision systems use high-brightness LED as the light source,but the manufacturers often placing higher prices. In order to decrease the cost,we present a design of the LED lamp controller that can be controlled by a host computer,include hardware design and program design,especially an example. The controller which we designed had run stable for half a year, controlled luminance well,and without brightness attenuate. The design is proved feasible.