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How to Make a Touch Sensor Circuit 🤚 | Using 2N2222, LED & Buzzer (No IC!)
Learn how to make a simple touch sensor circuit using a 2N2222 transistor, LED, and buzzer! This beginner-friendly DIY electronics project lets you turn ON an LED and buzzer just by touching two wires. This circuit works by detecting the tiny electrical signal from your finger, which triggers the transistor to activate the output. 💡 What you ...
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