Sometimes you need simply some blinky LEDs, for chrismas decoration, blinky artworks or just to have fun with blink blink blink. I'll show you how to make a cheap and simple circuit with up to 6 blinking LEDs.
Note: This is my first instuctable and i'm not a native english speaker - so please excuse my mistakes.
Step 1: Parts you need
So you need some cheap electronic parts, here we go:
- 1 CMOS 74C14 - its a small and really cheap microchip, we use it to create oscillators to make our LEDs blink
- some jumper wires
- a breadboard to stick the parts on it
- a 9V block battery with batteryclip
for further experiments a potentiometer around up to 1 M
for every LED-Circuit (you can add up to 6 to one chip) we need
- an LED ;-)
- a capacitor (around 4,7 µF, you may vary the value to get different blink frequencies)
- a resistor 100k-200k
- a resistor to limit the led current, around 1-3k