Fading LED

by Chris Project in Circuits > LEDs

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Fading LED

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Hello I'm Christopher Tjia and today I'm gonna show you how to make a fading LED.

Watch the Video

the the video is in my youtube channel Christopher Tjia, link:

Buy All of the Components

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The components for thias project are:

1pc 9V power supply, for this i'm using a variable bench power supply

1pc red LED

1pc 10 uF capacitor

1pc NE555 timer chip

1pc 470 ohm resistor

1pc 100k ohm resistor

1pc BC547 transistor

and some wires

Schematic

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For how does this fading LED works, will be in my next instructables.

Arrage the NE555 Pin

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First arrage the NE555 timer chip pin like this

Connect the Resistor

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Then solder the 100k ohm resistor to pin 3 of the NE555

Connect the The Transistor

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Connect the base pin of the BC547 transistor to the other pin of the 100k ohm resistor

Connect the Other Resistor

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Connect the 470 ohm resistor to the emitter pin of the BC547 transistor

Connect the LED

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Connect the positive pin of the LED to the other pin of the 470 ohm resistor

Conect the Capacitor

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Connect the positive pin of the 10 uF capacitor to the 100k ohm resistor and the base pin of the BC547

Connect Pin 6

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connect pin 6 of the NE555 to the 100k ohm resistor, the base pin of the BC457 transistor, and to the positive pin of the 10uF capacitor

Connect the Components to VCC and Ground

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Connect pin 8 and pin 4 of the NE555 and the emitter pin of the BC547 to the VCC. And pin 1 of the NE555, negative pin of the 10uF capacitor, and the negative pin of the LED to Ground.

Testing

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If you connect every thing correctly then if you apply power to the cirxuit then the LED will start fading in and fading out. Thank yopu for reading this instructables, please like and share , until next time, BYE.