Smoke Detector
An Arduino-based smoke detection system using an MQ-3 sensor, buzzer, and LCD display to alert users when smoke or harmful gases are detected.
Description
This project is a Smoke Detection System using Arduino, an MQ-3 gas sensor, an LCD display, and a buzzer. The MQ-3 sensor detects smoke or harmful gases in the air, and when the concentration exceeds a predefined level, the buzzer starts buzzing to alert users. The LCD display shows real-time smoke levels and system status. This system can be used in homes, offices, industries, and fire safety applications to prevent accidents caused by smoke or gas leaks.
Features: Real-time Smoke Detection
Audible Alert
Compact and Low Power Consumption
Applications: Industrial Safety
Home and office safety
Smart Kitchen Monitoring
Public Safety and Emergency Systems
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The Conveyor Belt Object Counter using LDR and 7-Segment Display with the 8051 microcontroller is designed to count objects passing in front of an LDR (Light Dependent Resistor) sensor. The system works by detecting light interruptions when an object crosses the sensor, causing a change in the LDR’s resistance. The microcontroller processes this change and increments an object count. The count is then displayed on a 7-segment display.