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  • ABSTRACT PARKING PORTAL SYSTEM USING ATMEGA 16 MICROCONTROLLER DEVIE MUTIA RAHAYU This final report describes the portal system that set the remaining parking parking area will know the number of parked vehicles and the number of parking spaces are still empty. This system consists of 2 pieces of the portal, portal 1 is used as the vehicle entrance and portal 2 is used as an exit vehicle. Portal system applying photodiode sensor (Receiver) and laser diodes (Transmitter) as input and DC motors to move the beam portals and seven segment displays are used as viewer figures represents the difference between the number of vehicles that enter and exit the parking area. The purpose and benefits of the final report is expected to understand the parking Portal System using Microcontroller atmega 16. The sensor functions as a switch to activate the motion of a DC motor to be able to open and close the portal automatically crossbar and into the input for the seven segment display. The system will continue to work until seven segment display until the number 0 (there is no parking space available). Key Words : Microcontroller, sysstem, Motor DC.