How to make a simple touch sensor Circuit

How to Build a Touch Sensor Circuit


  1. 3 volt Led
  2. 470 k Resistor
  3. BC547/2N2222 Transistor
  4. 4 – 8 volt power supply

touch switch circuit using transistorWatch full process on my youtube channel: Aamis Techsool 

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One thought on “How to make a simple touch sensor Circuit

  • 09/09/2017 at 9:59 PM

    very nice sir, i love physics
    this is first blog on physics i found
    keep up the good work


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