I am working on an Arduino robot that includes a fire detector and need help finding the optical interruption sensor required for smoke detection.
I have previously tried using the MQ2 gas sensor, but the sensor has a heat time of 20 sec and therefore needs to be continually running. This would draw too much current and the the batteries wouldn’t last very long.
Do normal photo interruption sensors work or do I need more precise components? If so, where can I find them?
Any help would be greatly appreciated!