Below are the conditions specified by the institution:
a) If the temperature sensor shows 30 degree Celsius or higher, the air-conditioner will be turned ON regardless of the other inputs.
b) If the temperature sensor shows lesser than 30 degree Celsius,
i. If only one fan is ON, and the window is CLOSE, air-conditioner will be turned ON. If the window is OPEN, then air-conditioner must be turned OFF.
ii. If both fans are ON, and the window is OPEN, air-conditioner must be turned OFF.
c) Other conditions, turn OFF the air-conditioner.
To set the logic:
a) Window: OPEN = 1, CLOSED = 0
b) Temperature Sensor: < 30º = 0, > 30º = 1
c) Fan: ON = 1, OFF = 0
Design the simplest logic circuit for the air-conditioner controller to perform the required specification.
[HINT: Use Karnaugh Map]