Simple Fire Alarm Circuit Diagram. Circuitsdiyfind full project description all useful material including circuit diagram schematic hardware component list codes algorithm datashe. Fire alarm circuit working is simple here we used 10k ntc thermistor to detect the fire and lm358 operational amplifier in comparator mode.
The block diagram of fire alarm circuit block diagram can be. Visible light and ir from the fire activate the sensor to trigger the alarmfire alarm system block diagram. This video is about how to make a simple fire alarm circuit using thermistor and ic lm358a thermistor is a variable resistor whose resistance depends upon t.
Gathering required components for fire alarm circuit.
Visible light and ir from the fire activate the sensor to trigger the alarmfire alarm system block diagram. Based on the block diagram of fire alarm system the. Here we have used buzzer as a smoke alarm which is driven by bc547 npn transistor. Simple smoke detector alarm circuit diagram.