Earthquake Detector using Arduino and Vibration Sensor

The Earthquake Detector is a basic yet effective project built using an Arduino Uno and a vibration sensor (SW-420) to detect tremors or seismic activity. The sensor continuously monitors ground vibrations. When sudden or strong vibrations are detected, it sends a signal to the Arduino, which then triggers an alarm using a buzzer or LED to alert nearby individuals.

This system is simple to build and helps demonstrate how vibration sensing can be used in early warning systems. It can be further enhanced by integrating a 16×2 LCD to display real-time status or even a GSM module to send alerts remotely.

Real-Time Clock Display using Arduino and RTC Module

The Real-Time Clock (RTC) Display is a practical Arduino project that shows the current time and date using an RTC module like the DS3231 or DS1307, and a 16×2 LCD with I2C interface. The RTC module keeps track of time even when the Arduino is powered off, thanks to its internal battery.

The Arduino reads the time and date from the RTC module via I2C communication and continuously updates the LCD display. It shows real-time hours, minutes, seconds, and date, making it ideal for clocks, loggers, or time-based automation projects.

Traffic Light Controller using Arduino and Traffic Light Module

The Traffic Light Controller project uses an Arduino Uno and a traffic light module (or individual red, yellow, and green LEDs) to simulate a real-world traffic signal system. It’s an ideal beginner project for understanding automation, timing, and microcontroller-based control systems.

The Arduino is programmed to control the lights in a specific sequence—green (go), yellow (wait), and red (stop)—each with a set time duration. This cycle runs continuously, mimicking an intersection traffic light system. Optional enhancements like pedestrian buttons, vehicle sensors, or countdown timers can be added to make the project more interactive and realistic.

RFID-Based Attendance System using Arduino

The RFID-Based Attendance System is a smart and contactless method to record attendance using RFID technology. It uses an Arduino Uno, RC522 RFID reader, and RFID tags/cards assigned to individuals.

When a person taps their RFID card near the reader, the system reads the card’s UID and checks it against pre-stored data in the Arduino. If the UID is valid, a 16×2 LCD (with I2C) displays a message like “Attendance Marked”, and a buzzer or LED can signal a successful scan. Invalid cards show an “Access Denied” message.

Earthquake Detector using Arduino and Vibration Sensor

The Earthquake Detector is a basic yet effective project built using an Arduino Uno and a vibration sensor (SW-420) to detect tremors or seismic activity. The sensor continuously monitors ground vibrations. When sudden or strong vibrations are detected, it sends a signal to the Arduino, which then triggers an alarm using a buzzer or LED to alert nearby individuals.

This system is simple to build and helps demonstrate how vibration sensing can be used in early warning systems. It can be further enhanced by integrating a 16×2 LCD to display real-time status or even a GSM module to send alerts remotely.

Real-Time Clock Display using Arduino and RTC Module

The Real-Time Clock (RTC) Display is a practical Arduino project that shows the current time and date using an RTC module like the DS3231 or DS1307, and a 16×2 LCD with I2C interface. The RTC module keeps track of time even when the Arduino is powered off, thanks to its internal battery.

The Arduino reads the time and date from the RTC module via I2C communication and continuously updates the LCD display. It shows real-time hours, minutes, seconds, and date, making it ideal for clocks, loggers, or time-based automation projects.