TOPIC: Design of Fire/smoke detection alarm system
Objectives: a) Ensure the system accurately detects smoke (e.g., using photoelectric or ionization
sensors) and/or heat (e.g., via temperature sensors) to identify fire hazards early.
b) Minimize false positives (e.g., from cooking fumes or dust) and false negatives (missing actual fire
events) through proper sensor selection and calibration.
MATERIALS NEEDED
Arduino Uno
MQ-2 smoke sensor
LM35 temperature sensor
5V buzzer
Red LED (with 220Ω resistor)
Breadboard and jumper wires
9V battery with connector
Arduino IDE for programming