How to Create a Simple Circuit: Activity#1

This is a step by step guide to creating a simple circuit using LEDs, conductive thread, and a coin battery.

How to Create a Simple Circuit:              Activity#1
27 Steps
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1
First sketch a design for your simple circuit. You should have a front and back design. There is a paper like this in your packet.

First sketch a design for your simple circuit. You should have a front and back design. There is a paper like this in your packet.

2

Your sketch should include: 1. The shape of your felt 2. Where you will sew with conductive thread using broken line 3. Positive (+) and negative labels 4. LED 5. Battery Pack.

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Here is an example of a the front and back of a simple circuit sketch.

Here is an example of a the front and back of a simple circuit sketch.

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Start by cutting a small shape (square, triangle, heart, etc...) out of felt for your basic design. No larger then 2-3 inches wide.

Start by cutting a small shape (square, triangle, heart, etc...) out of felt for your basic design. No larger then 2-3 inches wide.

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Test your light with your battery before you sew it. Place the positive (+) leg to the positive (+) side of the battery and the negative (-) leg to the negative (-) side of the battery, then squeeze.

Test your light with your battery before you sew it. Place the positive (+) leg to the positive (+) side of the battery and the negative (-) leg to the negative (-) side of the battery, then squeeze.

6
When choosing a needle make sure it fits all the way through the hole of the battery pack.

When choosing a needle make sure it fits all the way through the hole of the battery pack.

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Then add your light by gently pushing both legs through the fabric so your light is in the front and your legs are in the back.

Then add your light by gently pushing both legs through the fabric so your light is in the front and your legs are in the back.

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Using small nose pliers to curl or bend your legs in different ways. This helps with remembering which leg is positive (+) and which leg is negative (-) when you begin sewing.

Using small nose pliers to curl or bend your legs in different ways. This helps with remembering which leg is positive (+) and which leg is negative (-) when you begin sewing.

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Measure out 12 inches of conductive thread.

Measure out 12 inches of conductive thread.

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You can use a threader to help thread the conductive thread through your needle.

You can use a threader to help thread the conductive thread through your needle.

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First, place the diamond shape end of the threader through the needle hole.

First, place the diamond shape end of the threader through the needle hole.

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Then place your thread through the diamond shape in the threader.

Then place your thread through the diamond shape in the threader.

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Next pull the diamond shape part of the threader back through the needle.

Next pull the diamond shape part of the threader back through the needle.

14
The thread should be pulled all the way through so your needle and thread looks like this.

The thread should be pulled all the way through so your needle and thread looks like this.

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Tie a knot to the end of one strand of thread. (Remember how Sylvia showed us)

Tie a knot to the end of one strand of thread. (Remember how Sylvia showed us)

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Leave one end of the thread loose. You can secure it by twisting it around itself. Conductive thread sticks well to itself.

Leave one end of the thread loose. You can secure it by twisting it around itself. Conductive thread sticks well to itself.

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BEFORE you sew, place the battery pack to match the same side as the LED legs, keeping positive (+) on one side and negative  (-) on the other. See your polarity sheet as a reference.

BEFORE you sew, place the battery pack to match the same side as the LED legs, keeping positive (+) on one side and negative (-) on the other. See your polarity sheet as a reference.

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Start by sewing down into the positive side of the battery pack so your knot is on the same side as your battery pack. Sew close to the metal & make 3 loops when using conductive thread.

Start by sewing down into the positive side of the battery pack so your knot is on the same side as your battery pack. Sew close to the metal & make 3 loops when using conductive thread.

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Sew from the positive (+) side of your battery pack to the positive (+) leg of your LED.

Sew from the positive (+) side of your battery pack to the positive (+) leg of your LED.

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Sew close to your LED leg making sure to have 3 loops of conductive thread touching each leg.

Sew close to your LED leg making sure to have 3 loops of conductive thread touching each leg.

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Tie a  knot close to the felt and cut any extra thread. Be careful not to cut too close to your knot.

Tie a knot close to the felt and cut any extra thread. Be careful not to cut too close to your knot.

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Now sew from the negative (-) side of your battery pack to the negative (-) LED leg. Make sure to use 3 loops of conductive thread to connect them.

Now sew from the negative (-) side of your battery pack to the negative (-) LED leg. Make sure to use 3 loops of conductive thread to connect them.

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Make a secure knot by your LED leg and cut off any extra thread being careful not to cut too close your knot.

Make a secure knot by your LED leg and cut off any extra thread being careful not to cut too close your knot.

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When you are done sewing the back should look something like this!

When you are done sewing the back should look something like this!

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Add your coin battery with the positive (+) side up and your light should turn on.

Add your coin battery with the positive (+) side up and your light should turn on.

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The front of your simple circuit should look something like this. If the light goes on great job! If your light does not turn on check your "Troubleshooting" handout.

The front of your simple circuit should look something like this. If the light goes on great job! If your light does not turn on check your "Troubleshooting" handout.

27
Once your light works you can add extra designs with other materials such as embroidery thread.

Once your light works you can add extra designs with other materials such as embroidery thread.

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