Earthquake Vibration Logger Kit with Arduino Uno + Sensor
Earthquake Vibration Logger Kit with Arduino Uno & Sensors: Build a Dual-Hazard Alarm System
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine an earthquake strikes while you're asleep — this kit's vibration sensor instantly triggers a loud alarm and a relay that cuts off your gas line, preventing potential fires from leaks. Add in a carbon monoxide sensor that does the same when CO levels rise, and you have a dual-hazard safety system you can build from scratch. It's a real-world project that teaches critical environmental monitoring and automation relevant to disaster management challenges.
What You'll Build
You'll assemble a working dual-hazard alarm unit that monitors vibration (earthquake) and carbon monoxide (CO) levels. When either sensor detects a threat, the system activates a buzzer and three red LEDs for immediate alert, while a relay module automatically shuts off a connected gas valve — preventing further leakage. Everything is modular on a breadboard, so you can test and iterate before deploying it in a prototype enclosure.
What You'll Learn
- Calibrate and use an SW-420 vibration sensor to detect seismic activity
- Read and interpret MQ-7 CO sensor data to trigger alerts at dangerous thresholds
- Program an Arduino Uno to handle multiple sensor inputs and actuate outputs simultaneously
- Control a 5V relay to safely switch a low-voltage gas valve as a fail-safe mechanism
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| SW-420 Vibration Sensor | x1 |
| MQ-7 CO Sensor | x1 |
| 5V Relay Module | x1 |
| Active Buzzer | x1 |
| 5mm Red LED | x3 |
| 1N4007 Diode | x5 |
| 10kΩ Resistors | x5 |
| 220Ω Resistors | x5 |
| 400-pt Breadboard | x1 |
| M-M Wires | x25 |
| 9V Battery Snap | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part individually; SW-420 and MQ-7 thresholds may not match your code | Pre-tested as a system; analog thresholds calibrated for dual-hazard logic |
| Build support | Forums and scattered tutorials with no alarm-specific guidance | AI companion trained on this exact earthquake-CO alarm code and wiring |
| Time to first working build | Days of debugging sensor readings and relay activation sequences | Hours, with step-by-step guidance from breadboard to buzzer |
| Shipping coordination | Multiple sellers, multiple delays for 12 separate components | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This intermediate kit is ideal for CBSE Class 11-12 students exploring seismology in physics, B.Tech ECE/EEE students building sensors projects, and Smart India Hackathon teams working on disaster management solutions. It's also perfect for ATL Tinkering Labs that need a ready-to-assemble safety alarm with real-world relay integration for gas line control.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Your QR code connects you to an AI companion trained on this exact project; you can also WhatsApp our support team for human help.
Can I connect this to an actual gas valve?
Yes — the relay module can control a 5V solenoid valve; we include the circuit diagram to safely switch a low-voltage gas valve. For mains-pressure gas lines, consult a professional.
How sensitive is the earthquake sensor?
The SW-420's sensitivity is adjustable via its onboard potentiometer. We guide you to set it so minor vibrations don't trigger false alarms, but strong shaking will reliably activate the alarm.
Is the MQ-7 sensor suitable for detecting typical household CO leaks?
Yes, the MQ-7 is calibrated for 10–10,000 ppm, ideal for dangerous CO levels from gas heaters or stoves. We provide baseline calibration code to detect hazardous thresholds.
Seismology — SW-420 vibration + MQ-7 CO sensor trigger alarm and relay gas shutoff valve when either hazard detected.
What's in this kit
- Arduino Uno R3
- SW-420 Vibration Sensor
- MQ-7 CO Sensor
- 5V Relay Module
- Active Buzzer
- 5mm Red LED x3
- 1N4007 Diode x5
- 10kΩ Resistors x5
- 220Ω Resistors x5
- 400-pt Breadboard
- M-M Wires x25
- 9V Battery Snap
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items