Most of the display circuits available in the market are not programmable. The project presented here is fully programmable it provides digital control of all the functions interactively and can be programmed for any desired display sequence. The circuit was build around the popular 8 bit Microprocessor 8085. The External devices are connected through the ports the ports are only available through the IC8255 which has three ports. They are PortA, PortB, PortC respectively. Using the microprocessor we can generate several patterns. The LEDs can be switched On/off according the program and the LEDs are driven through a driver IC Uln2003. it has seven driver inside a single package.
