Скачать или смотреть Pocket-Sized Metal Sleuth: Craft a Pinpointing Marvel with 555 Timer + Free PCB!

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In this video, we’ll build a small and powerful pocket metal detector (pinpointer) using the famous 555 timer IC and just three transistors!
This simple yet effective circuit can detect metal objects at close range — perfect for treasure hunters, hobbyists, or electronics enthusiasts.

You’ll get the complete schematic diagram, PCB layout, and full explanation step by step.
It’s an easy project you can make at home with a few common components.

💾 Download Files (Schematic + PCB): [Add your link here]
⚡ Main components: NE555, BC547 (x3), buzzer, coil, resistors, capacitors

🔧 What you’ll learn:

How the 555 timer is used for pulse generation

How transistor amplification improves sensitivity

How to design and test a pinpointer metal detector circuit

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