Introduction: TOUCH SENSOR USING BC547 TRANSISTOR
This circuit turns on LED with the touch of your finger!. Many a times
we need certain actions to be done with a touch instead of pressing a button. This simple circuit does that using minimal components.
Step 1: MATERIALS REQUIRED
(1.) Battery - 9V x1
(2.) Battery clipper x1
(3.) LED - 3V x1
(4.) Resistor - 470 ohm x1
(5).BC457
(6).breadboard
Step 2: OUTPUT
LEFT PICTURE SHOWS THAT BEFORE WE TOUCH, THE LIGHT WILL NOT GLOW
RIGHT PICTURE SHOWS THAT AFTER WE TOUCH ,THE LIGHT WILL GLOW
Step 3:
