Simple LED Flip-Flop for Beginners





Introduction: Simple LED Flip-Flop for Beginners

A very simple Flip-Flop circut for beginners

Step 1: Parts List

Parts list:
- LED X2
- Resistor: 10K (brown-black-red) X2
- Electrolytic capacitor: 100uF X2
- Transistor: NPN like BC108 X2
- 9V Battery with connector
- Striped wire
- Breadboard
- Spongebob assistant (optional)

Step 2: Resistors

1K : Brown - Black - Red

10K: Brown - Black - Orange

Put resistors on the breadboard like pictures.

Step 3: LED

Put LEDs on the breadboard like pictures.

Notice to polarity of LEDs

Step 4: Capacitors

Put capacotrs on the breadboard like pictures.

Polarity is not very important

Step 5: Transistors

Put transistors on the breadboard like pictures

Step 6: Wiring

Connect point 5 to 11

Connect point 6 to 8

Connect point 2 to 9

Connect point 4 to 12

Connect point 7 to 10

Step 7: Battery

connect + to point 13

connect - to point 10

You can use 3V to 9V battery

Step 8: Run

You can use larger capacitors (like 470uf) for slower flashing and smaller (like 47uf or 10uf) for faster flashing.

Use a larger capacitor (like 470uf) for slower,or a smaller one (like 47uf or 10uf)for a faster blinking.

Step 9: Refrence

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actually, the polarity of electrolytic capacitors is kind of important

very well posted .i have made in five miniutes .you have posted step by step .No difficulty faced in making circuit. THANKS .

Thanks for sharing such simple and consise information on Flip-Flops. I love that Sponge Bob was so willing to help you with this!