This fire sensor circuit exploits the temperature sensing property of an ordinary signal diode IN 34 to detect heat from fire. At the moment it senses heat, a loud alarm simulating that of Fire ...

Stage 2: Extinguishing fire Constant feedback from sensors is fed to the main module through CON4, and hence position of the fire with respect to the robot is determined. The main module includes an ...

At the heart of this overhead detector (fire alarm) circuit is a precision integrated temperature sensor type LM35 (IC1), which provides an accurately linear and directly proportional output in mV, ...