Fire Alarm Using IR
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020
Great

Fire Alarm Using IR

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  • Product SKU: LGKT033
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₹ 499 ₹ 599
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Highlights
  • Product Code: LGKT033
  • Technical Support: upto 30mins Video support
  • Handmade
  • Make in India
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Details
  • Unsoldered PCB and all components to be soldered on PCB.
  • Includes all ICs, Connecting wires and Sensors.
  • Documentation: PCB Specifications Component list and Circuit diagram.
  • Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
  • Video tutorial is available on YouTube.
  • One set of the readymade in working condition.
  • Includes all ICs, Connecting wires and Sensors.
  • Documentation: PCB Specifications Component list and Circuit diagram.
  • Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
  • Video tutorial is available on YouTube.

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Specification

Description

Using IR Fire Alarm is an automatic fire alarm system designed to detect the unwanted presence of fire by monitoring changes in the environment associated with flaming. The IR Receiver sensor detects the fire and generates an analog voltage. This variation is monitored by forming a potential divider circuit. 

In this Electric Fire Alarm Kit, analog variation is converted into digital form using a dual op-amp IC LM358. The op-amp is used as a comparator in non-inverting mode to do so. In this operation, we set a reference voltage with the preset (potentiometer). If the analog voltage from the sensor is greater than Vref, then the output is logically high on pin 7 else it is low. The analog input is connected to the pin5 of LM358. The output from the LM358 drives the ULN2803 IC (it act as a current amplifier to meet the current requirement to drive the relay).

This Fire Detector Kit is an inverted IC means when input is low output is high and vice versa. This IC drives the relay to activate the alarm which is a piece buzzer. The relay acts as an electromagnetic switch to switch the high voltage to activate the buzzer.

Block Diagram

Fire-Alarm-Using-IR-block-diagram

Physical Attributes

  • Dimensions (cm) L x W x H : 20 x 15 x 5
  • Weight (gm): 200

Product Video

Customer Reviews

Based on 5 reviews
80%
(4)
20%
(1)
0%
(0)
0%
(0)
0%
(0)
R
Ramnarayan sinha
Life saving

Thank you very much for such an amazing product since it helped me a lot to earn marks in my last year's boards practical.

N
Noel Sam Idicula
Save the time

Saves a bunch of time, actually works really well!

A
Arulragavan
nice project

Enjoyed playing with my son, assembled and working successful. Thanks for making such product.

S
Sethu Kumar
how to build

How to build:

First of all read the given manual thoroughly and study the circuit given in the figure. Also have look at PCB and components supplied along with the kit. Each component has to be soldered in its position on PCB.

G
Ganesh
easy

Value for money, easy to assemble and use