You are asked to design a ventilator system to monitor the breathing rate of coronavirus (COVID-19) patients. The required system specifications: o (10 Pts.) The system has ON/OFF switch. o (20 Pts.) The system will display a welcome massage on an LCD for 2 seconds. (use external interrupt) o (20 Pts.) The system will read the breathing rate using a potentiometer as a breathing sensor. (Use an RB interrupt). o If the breathing rate reading is: (20 Pts.) From 12 to 20; send "normal" to virtual terminal. (20 Pts.) Less than 12; supplement O2 is given by turn a motor. (10 Pts.) More than 20; turn a LED "ON" as an alarm.