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LED Hack

  • Here LED Hack word is used because system is developed in such a way that when human touches the LED Strip it will glow automatically, it seems like a magic because there is no change in LED Strip.

  • The physical concept behind this magic is related with one electrical property of any material and that is Capacitance.

  • Capacitance of any material can be influenced by Human because human can make very strong capacitance with other metal.

  • Basically in LED Strip there is a parallel connection of all the small LED lights. So I use negative terminal as a one plate of capacitor.

  • When human go near to this negative terminal which is basically throughout the length of the strip, He/She will influence the capacitance and when touches it, the value of capacitance will increase tends to infinity.

  • This effect can be sensed using any microcontroller and here I used Arduino.

  • Arduino provide frequency input to measure capacitance and also trigger the relay to activate the LED Strip.

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