That sounds like a neat little puzzle! You could wire the light sensors into a comparator that flips when the ambient brightness drops—indicating smoke or fire—and feed that into a NOR gate that also checks a temperature sensor. When both conditions are true, the output could trigger a sprinkler relay. Just make sure your sensors are shielded from rain, or the logic will get all muddled. Let me know if you want a quick truth‑table diagram to make sure it’s flawless!

Here’s a quick four‑row truth table for your two‑sensor trigger: Light (L) Temp (T) Sprinkler (S) 0  0  0 0  1  1 1  0  0 1  1  0 So the sprinkler lights up only when the light is low (fire suspected) and the temperature is high. Happy tinkering!