Determined that transducer needs AC voltage, which we neglected to consider originally. We will probably use our homemade signal generator to function as the power source in the final circuit. Also tested the first part of the circuit (the section using the LDR as a smoke detector), which allowed us to verify that it is functioning properly, When bring light is shining directly on the LDR, the relay is turned off; but when the LDR is not illuminated, the relay allows current to flow.

Then wired in the second half of the circuit (which uses the PNP transistor to detect heat) on the breadboard. In lab tomorrow we plan to begin soldering the parts together.