Fire Security Alarm Circuit Without Transistor

About: Share diy projects to those who have the same hobby with me

Hii friend,

Today I am going to make a fire alarm circuit without using any transistor.

Let's get started,

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Take All Components As Shown Below

Components required -

(1.) Battery - 9V x1

(2.) Battery clipper x1

(3.) Buzzer x1

(4.) IR Sensor x1

(5.) Match

Step 2: Solder IR Sensor to Buzzer

Connect +ve wire of IR Sensor to the +ve of buzzer as shown in picture.

Step 3: Now Connect Battery Clipper Wire

Now connect +ve wire of battery clipper to -ve of IR Sensor and

-ve wire of battery clipper to -ve of buzzer as shown in picture.

Step 4: Now Connect Battery to the Circuit

Now connect battery to the circuit and use it.

Step 5: How to Use It

Burn fire across this circuit then buzzer will give beep sound.

Uses:- This circuit will help us to protect from fire.

Thank you

Be the First to Share


    • CNC Contest

      CNC Contest
    • Make it Move

      Make it Move
    • Teacher Contest

      Teacher Contest