Make a simple indicator for your board

                  Make a simple indicator for your board


Hi,
I am Md Yeamin Islam Ashique
Today i will share a little thing.Many people know that already.
But who is starting now electronics. It's very good for his/her.

You have to know what is indicator  ? Electricity is there or not for this check we are using indicator.
After switch off also it will light.But i will make a indicator from a led (Light Emiting Died).
But how can i light a led with 220 Volt ?
It's too easy and simple.
Generally we are using for a led a 3.8 volt dc battery that's simple.
But from 220 volt ?You need to use some techniques.


Needs


  • Red,Blue,Green Or Any Color Led .
  • Any Rectifier Died.
  • 22K half watt resistance . 

Now Follow The Picture 
Make a simple indicator for your board

Make a simple indicator for your board


Set The LED Where you need.



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