This is a simple circuit that will adjust the brightness of one or more LEDs from 5% to 95%. I have used only only one LED. Only place where you can go wrong in this project is while connecting the diode, so connect the diode properly.
I will add the connections later.
In my breadboard arrangement I have not connected the 100n between the pin5 and negative rail and the resistor I used is 220R instead of 330R in the circuit diagram.
COMPONENTS REQUIRED:
1. 555 timer IC
2. 47k POT
3. 1N4148 diode x2
4. 1k resistor
5. 330R resistor
6. 100nf capacitor (code 104) x2
7. LED
8. Battery
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