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LED Flashy

Watch the video below for step-by-step instruction to assemble the circuits to make your LED Flashy Book!


Hi guys….

Today, we’re going to show you how to make an interactive book!

I’m sure you’re familiar with drawing and sketching on paper and notebooks, right?

We have used paper and notebooks to write notes, draw, sketch for a very long time…. But who says notebook can’t evolve? Let’s be CREATIVE with our notebook today

Hack your notebook and turn it into a 21st century interactive book with paper circuits!


To learn the basics of paper circuits, let’s follow the step-by-step instruction in the video above to make your first circuit.


In the first part of this project, you’re going to create a simple circuit. When you’re finished, you will see Astro’s heart light up when the circuit is complete.


CONGRATULATIONS! You just made your first circuit!


Do you want to know how it works? Let’s explore it together J



In this project, you are provided with a couple components: LED stickers, battery, copper tape



There is a very tiny lamp on the LED sticker that will light up when it’s powered by the battery. Now the LED and the battery each has their own positive and negative sides. When you connect the positive and the negative sides together, your form a COMPLETE or CLOSED circuit and the LED will light up!


That’s because the electrons now have a path to flows around. The electrons flows from the battery to the LED and back into the battery. And the LED converts this electrical energy into light. That’s why the LED can light up.

This round trip flow of electrons is called current!

Troubleshooting: if your LED doesn’t light up, switch the battery around and make sure the positive side of the battery is connected to the positive side of the LED, and the negative side of the battery is connected to the negative side of the LED.




Parallel Circuit

Now, let’s move on to the next part of this project; creating parallel circuit.

Follow the step-by-step instruction on the video and place the copper tapes and LED stickers according to the diagram on page 6 and 7. Now, slide your finger across the spaceship. Do you see the planets blinking?


As you can see the LEDs are not directly connected to the battery, so that’s why the lights are not glowing in the beginning. That’s because the circuit is “broken” or what we call an OPEN circuit.


In an open circuit, current cannot flow from one end of the battery to the other end. Because there is no current flow, the light does not turn on.







But when you slide your finger across Astro’s spaceship, the LEDs started to light up and blink. Why?

Take a closer look at the 3 small copper tapes on page 7 under the label “Switch”.

When you slide your finger across the spaceship, you put pressure on the switch (copper tape) which connects and complete the circuit. And that’s why the LEDs light up!




The switch behaves just like the ON/OFF switch light in your room. When you press on it, it completes the circuit so lights turn on, and when you let go, the circuit is “broken” again, so lights are turned off.



Additional resources

In this project, you have a special component called Copper tape.

Copper tape conducts electricity so you can make electrical connections between your battery and LEDs without using electrical cables. It’s ideal for making paper circuits because it’s easy to stick on paper. That means no more messy, complicated wires all over your beautiful work of art.



It’s better to fold your copper tape to make sharp corners instead of cutting and connecting/stitching two pieces of tapes together. It ensures you have good connections in your electrical circuit.

  1. Fold it up so the sticky side is up and flatten it.
  2. Flip the tape back to make a corner.