Try GOLD - Free
FLAME-SENSING FIRE ALARM Using An Arduino Nano
Electronics For You
|November 2024
Fire safety alarms are crucial in both residential and industrial environments.
Early fire detection can prevent significant damage and save lives. Flame sensors offer one of the most efficient methods of fire detection. Here we outline how to construct a simple and reliable fire alarm system using a flame sensor and an Arduino Nano board.
This fire alarm is intended for hobbyists and individuals interested in learning the basics of electronic sensors and alarms. The simplicity of this device can pave the way for creating life-saving systems. Fig. 1 shows the author’s prototype on a breadboard.
Circuit and working Fig. 2 presents the circuit diagram for the fire alarm using a flame sensor and Arduino Nano. The system is powered by a step-down transformer (X1), a bridge rectifier (BR1), a 12V voltage regulator (LM7812), and a flame sensor module connected via CON2. It includes a 12V SPDT relay (RL1), three LEDs (LED1 through LED3), and two transistors (BC548 and SL100), along with some other components.
This story is from the November 2024 edition of Electronics For You.
Subscribe to Magzter GOLD to access thousands of curated premium stories, and 10,000+ magazines and newspapers.
Already a subscriber? Sign In
MORE STORIES FROM Electronics For You
Electronics For You
FM RADIO RECEIVER Using TDA7000
This FM radio receiver demonstrates the practical application of RF engineering and analogue signal-processing techniques.
4 mins
July 2026
Electronics For You
Latest 3D chip stacking method could extend Moore's Law
Engineered by a team at the University of Illinois Grainger College of Engineering in Urbana-Champaign, the process uses ultrathin single-crystalline silicon nanomembranes transferred at temperatures below 200°C, avoiding heat damage to underlying circuits.
1 min
July 2026
Electronics For You
Stretchable patch detects heart failure risks
Researchers at the University of Chicago's Pritzker School of Molecular Engineering in Chicago have developed an AI-powered stretchable computing patch capable of processing health data directly on the body in milliseconds, eliminating the need for external servers or wireless connections.
1 min
July 2026
Electronics For You
Simple 12V To 24V VOLTAGE DOUBLER
Many electronic circuits require a voltage higher than that available from the power supply.
3 mins
July 2026
Electronics For You
Crystal stress method reshapes nanochip manufacturing techniques
Research conducted at Rice University in Houston, Texas, demonstrated that alpha-molybdenum trioxide crystals can deform under an electron beam, generating highly ordered nanoscale wrinkles that function as optical gratings for guiding and manipulating light on chips.
1 min
July 2026
Electronics For You
Hidden Costs In IoT PRODUCT DEVELOPMENT
Hardware mistakes do not show up early in development. The most expensive hardware mistakes are rarely the obvious ones. Decisions made during design, testing, and architecture shape costs for years.
7 mins
July 2026
Electronics For You
Temperature-Based DUAL SAFETY SYSTEM For Smart Homes
A temperature-based dual safety system addresses common household risks through intelligent control.
4 mins
July 2026
Electronics For You
Smart material developed to fight counterfeiting
Engineered by a team at the Indian Institute of Technology Guwahati, the technology uses perovskite nanocrystals with a double-layer protective coating that improves resistance to heat and chemicals while maintaining optical performance.
1 min
July 2026
Electronics For You
President Murmu inaugurates semiconductor training fab at IISc
On June 3, 2026, President Droupadi Murmu inaugurated IISc Bengaluru’s Semiconductor Training Fab at CeNSE, established with support from the Ministry of Tribal Affairs.
4 mins
July 2026
Electronics For You
Quantum Li-Fi secures networks
Research conducted in Germany by a consortium led by KEEQuant and supported by Fraunhofer IPMS highlights a pathway toward flexible, high-security next-generation wireless networks.
1 min
July 2026
Listen
Translate
Change font size