Introduction
Hello guys in this tutorial I will teach you how to make an automatic fire extinguisher without Arduino. If you’re looking for a good science project for your school or college, then you can make this project because it is very easy and also a low-cost project. When any fire comes in front of this project a buzzer will start beeping and through water on the fire to extinguish. So let’s see which components are required to make this project.
Components Required
- IR Sense module x 1
- BD140 PNP Transistor x 1
- 5V Active buzzer x 1
- 1K Resistor x 1
- 3V Water pump x 1
- Switch x 1
- 3.7V Battery x 1
- Battery Holder x 1
- TP4056 Charging module x 1
- Some Wires x 1
Circuit Diagram
Working of the Circuit
The flame sensor detects the fire and gives a negative output on the DO (Digital Output Pin)Â pin, which is insufficient to turn on the water pump and buzzer. So, we have used a transistor to amplify the output signal of the flame sensor. We have connected a buzzer and water pump with the transistor collector pin. Now when the flame sensor detects the fire it will give a negative output which will turn on the transistor and then the transistor will turn on the buzzer and the water pump. this is how the whole circuit works.
