How to make touch Switch at Home

touch switch using bc547

Using Components:


220 ohm resistor

LED diode

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This is as a result of, high skin’s resistance prevents enough current to flow through the circuit. that the sole choice we’ve is to amplify the small current flowing through the skin to a magnitude enough for AN LED to glow. For that purpose, we’ve to use transistors. The circuit also will work with only 1 semiconductor, however, the LED does not glow bright enough. therefore we’ve used.

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