This project includes PIC16F84 Microcontroller ,six current limiting resistors and and
LED s. To simulate circuit in this project, initially activate Mixed Mode simulator from the Schematic Editor window. Selecting Run Transient analysis from Simulation menu can perform simulation.
In this project PORTB is set as output port. The different colour Light-emitting diode is connected to the PORTB through a resistor. Upper three bits, as first group of LEDs and lower three bits as second group of LEDs.The micro control set its port as HIGH or LOW State according to program. For HIGH state LED will on and for LOW it will off.