A servo motor is used to open and close the door automatically. Design a system using PIC16F877A to control the servo motor by using the external interrupt (worked as a switch button) to the PIC to control using the PWM control as shown as in Table Q1. a. At 0, the door is closed (by default condition) b. At 180 the door is opened and will close back the door after 5 seconds Pulse Width = 1m 0 Table Q1 Pulse Width = 1.5m 90 Pulse Width = 2m 180 The screenshot for your code in MikroC and Proteus for the simulation must be submitted in your answer sheet.