HW2: Working combinatorial circuits: 1) building truth table, 2) extracting an output function, 3) minimizing, and 4) converting to a gate diagram.

You are developing a circuit to monitor a computer server room and alarm . The room is wired with these sensors and inputs to your circuit: --T== room temperature active if temperature exceeds limit

--H== room humidity active if humidity exceeds limit

--D== smoke particulates active if particulates detected

--P== power OK active when the room is powered OK (either primary or backup power)

--A== alarms disabled when alarms are turned off, do nothing

Your circuit (running on a battery backup system not dependent on power to the room) will enable an output that will be connected to an alarm and SW to send a text message in the event of a problem detected. Your job is to build the detection logic circuit (not the alarm or text messaging).

Any of T,H,D or NOT-P will send an alarm, unless alarms are disabled.

Build a circuit to monitor the inputs and activate the alarm and messaging when appropriate.

1) Build a truth table for server room monitoring.

2) Extract an output function in positive logic (using ANDs and ORs)

3) Minimize the function

4) Convert to NAND or NOR gates.

5) Implement the circuit with a gate diagram

USE ONLY TWO-INPUT NAND AND NOR GATES, AND INVERTORS BE CLEAR ABOUT YOUR WORK ON EACH OF THESE FIVE STEPS FOR PARTIAL CREDIT AND CLARITY