How To Make Fire Alarm Project Using LM358 | Fire Detector
Fire Alarm Review Video :
Fire And Smoke Alarm For Home And Office | Smoke Detector
• Fire And Smoke Alarm F...
Hello Guys welcome Back to Makers Hub In today's video, we are going to
make a fire alarm project, in this we will use a LM358 IC,
apart from that we will use some passive components, so let's start friends, today's video is
about fire alarm. I had reviewed a product earlier, whose link
you will find in the description or you can also see it by clicking on the i button,
friends, first we have to make a circuit for fire alarm, to make this circuit
we use a Zero PCB Let's take this zero PCB, we
first put it in the clip, now we put 8 pin IC Base on top of the zero PCB,
friends, here we are installing IC Base because if for some reason LM358 Damage happens, then we can fix the
IC Can replace easily because it is difficult to replace IC after soldering,
now we use a potentiometer, we put it near the IC and also we
use thermistor, it is temperature sensor and here But its value is also written, this
too should be taken on the PCB. Let's say now we take a resistance of 10K Ohm, now we
connect this resistance also in series with Thermistor, here we use a 330 ohm resistance
and we also use this in PCB on the top side of the ICC Let us put this resistance will be connected to the output pin,
now we use a led, it will act as a LED indicator, when
fire is detected, this LED will glow, apart from this we take
a buzzer, it is a 5volt buzzer, we also use this buzzer We will connect to the output pin itself,
friends, we have installed almost all the components, now we
start soldering by inverting the PCB, for soldering, you
use the circuit of this Fire Alarm and by looking at this circuit diagram, you design the circuit.
So friends, the shouldering work is completed
that here we have also used a battery connector above the circuit, due to which we
can connect this circuit with the battery, see friends, we have completed the circuit
and on top of this we have LM358 IC Here we have to take care of the notch of the IC.
Now we connect the connector to the battery and
fix this circuit by applying a little glue on the battery, this sensor will be here and outside so that we
can detect the flame, friends, all the work is completed. Now we do its testing
, before testing, we have to calibrate it, so for calibration, we
rotate this potentiometer, rotate the potentiometer on one side, then the LED glows and the buzzer also beeps
and friends like buzzer beep When it starts, we
have to rotate the potentiometer again in a slight reverse direction so that the buzzer beeps,
now we put a little flame on the sensor through the lighter, so as soon as we put the flame on it, the buzzer
turns on and This LED glows, here friends, we
can set the temperature through this potentiometer,
if you rotate this potentiometer on one side, the temperature will decrease and if you rotate it on the other side, then the temperature will increase,
Fire And Smoke Alarm For Home And Office | Smoke Detector
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