This project presents an earthquake detection and alert system using Arduino and tilt sensors, which detects seismic activity and triggers alarms. The system comprises various components including a buzzer, LED, and printed circuit board, operating based on an algorithm that continuously monitors sensor readings. The estimated total cost for building the system is 1,500 BDT, and its applications include real-time detection, safety measures, and smart IoT integration.

1. EE 2240
Project on Circuit Simulations and PCB designs
Earthquake Detector and Alert System
Using Tilt Sensors and Arduino

2. Mohammad
Shaharia
#2103051
Nahidul Islam
#2103052
Soumik Hossien
#2103053
Ashraful Islam Mahi
#2103054
Md. Kaium Ali
#2103055
Md. Ebrahim Khalil
#2103056
Mohammad Rasel
#2103057
Md. Faid Hossain
#2103058
Md. Sajjad Sheikh
#2103059
Khandaker Refah
Tasnim
#2103060
- Presented
By -

3. Introduction
This project demonstrates an earthquake detection system using:
- Arduino for processing
- Tilt sensors for detecting seismic activity
- Buzzer and LED for alarm signaling
Purpose: To detect vibrations and provide an immediate alert.

4. Components Used
• Arduino Uno
• Tilt sensor
• Resistors
• Buzzer
• LED
• Printed Circuit Board (PCB)
• Power supply

5. Circuit Diagram
Fig : Schematic Diagram of the circuit

6. PCB Layout
Fig : Layout of the Printed Circuit Board

7. PCB 3D View
Fig : Front Side Fig : Back Side

8. Algorithm
To execute the task, the circuit uses the following algorithm
1. Start
2. Initialization
~ Take initial readings from the Tilt Sensors
3. Main Loop (Repeated Continuously)
~ Take the sensor readings
~ Calculate the deviations
~ If any deviations surpass the threshold, trigger alert.
4. If an alert is triggered, turn on the buzzer and LED
5. After the duration “buzTime”, turn off the buzzer and LED
6. Repeat the “Main Loop”

9. Experimental Data
Vibration
intensity along
X
Vibration
intensity along
Y
Vibration
intensity along
Z
State of Alert
0 0 0 OFF
1 1 6 OFF
14 10 12 OFF
27 3 7 ON
11 5 25 ON

10. Demonstration of Simulation
Video : Simulation of Earthquake Detector

11. Cost Estimation
Components Quantity Estimated Cost (BDT) Total (BDT)
Arduino Mini 1 360-580 470
Tilt Sensor 3 45-60 165
Buzzer 1 15-20 20
LED 1 1-5 2
Resistor 4 5-10 20
PCB 1 65-190 150
5V DC Power
Supply
1 90-250 200
Connecting Wires - 50-100 50
Total Cost 1077
Total Cost (with additional Cost) 1500

12. Applications
1. Real-Time Earthquake Detection.
2. Post-Earthquake Safety measures.
3. Infrastructure Monitoring.
4. Disaster Response System.
5. Smart IoT Integration.

13. Thank You