Скачать или смотреть "DIY Earthquake Sensor: Build a Vibration Detector with SW-420 for Under $5!"

"Learn how to create a simple and affordable earthquake or vibration sensor using the SW-420 vibration sensor module! This step-by-step tutorial is perfect for beginners and shows you how to wire and test your DIY sensor. With just a few inexpensive components like a 3.7V battery, a buzzer, and some wires, you can create a functional device that detects vibrations and sounds an alarm.
In this video, we cover:
• The required materials and their functions.
• A clear wiring diagram for easy setup.
• Troubleshooting tips to optimize sensor performance.
Whether you're building a fun DIY project or a practical alert system, this tutorial has you covered. Watch now and start creating!"
"Here’s what you’ll need:
• A SW-420 vibration sensor module—this little guy costs less than a dollar and is easy to find online.
• A 3.7-volt battery—any battery works, even a phone or used laptop battery.
• Some wires.
• A 3-24V DC buzzer—again, under a dollar online.
• A switch for easy on/off control.
• And finally, a wood plank to use as the base.
Once you have all that, we’re good to go!"