on video I Made A Touch Sensor Touch Switch For A Car

 I Made A Touch Sensor Touch Switch For A Car

Today I am going to make a simple touch sensor using BC547 transistor. When we will touch on the wire then LED will glow and as we will not touch on the wire then LED will not be glowing.

Components required -

(1.) Transistor - BC547 x1

(2.) LED - 3V x1

(3.) Resistor - 1K

(4.) Battery clipper

(5.) Battery - 9V x1

This picture shows the pinouts of BC547 Transistor a

Firstly we have to solder 1K resistor to the collector pin of transistor

Next we have to connect the LED to the circuit.

Solder -ve leg of LED to 1K resistor as you can see in the picture.

Next solder extra long wire to the base pin of transistor

Now we have to solder the wires of battery clipper.

Solder +ve wire of battery clipper to +ve leg of LED and

Solder -ve wire of battery clipper to emmiter pin of the transistor as you can see in the picture.

Now our circuit is ready so connect 9V battery to the Battery clipper and touch with free finger on the +ve leg of LED and Base pin of transistor

# When we will touch on the pins with free hand then the LED will glow and as we remove the finger then the LED will not be glowing.

 I Made A Touch Sensor Touch Switch For A Car

Today I am going to make a simple touch sensor using BC547 transistor. When we will touch on the wire then LED will glow and as we will not touch on the wire then LED will not be glowing.

Components required -

(1.) Transistor - BC547 x1

(2.) LED - 3V x1

(3.) Resistor - 1K

(4.) Battery clipper

(5.) Battery - 9V x1

This picture shows the pinouts of BC547 Transistor a

Firstly we have to solder 1K resistor to the collector pin of transistor

Next we have to connect the LED to the circuit.

Solder -ve leg of LED to 1K resistor as you can see in the picture.

Next solder extra long wire to the base pin of transistor

Now we have to solder the wires of battery clipper.

Solder +ve wire of battery clipper to +ve leg of LED and

Solder -ve wire of battery clipper to emmiter pin of the transistor as you can see in the picture.

Now our circuit is ready so connect 9V battery to the Battery clipper and touch with free finger on the +ve leg of LED and Base pin of transistor

# When we will touch on the pins with free hand then the LED will glow and as we remove the finger then the LED will not be glowing.