It's a new technology to control electrical equipment just by finger touch. Now a days we are using like this technique to control electrical equipment and electrical circuit. Finger sensor alarm circuit help you to know the person who is waiting for you on your home door when you fit this unbelievable method of sensor device.
Material required :-
BC 547 transistor
9V Battery
1K Resistor
5mm LED
Connecting wire
Soldering iron
Soldering wire
Soldering paste
etc.....
Finger touch sensor # Finger touch method #
Short circuit test # Finger sensor # Finger detector sensor #
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