The following information is a single lesson in a larger project. Find more great projects here.

Project Overview:

In this project, a paper place card includes cursive writing as part of the circuit. The simple LED and battery circuit is built inside a magnetic mint tin for a crafty and industrial feel.

## Step 1: Introduction

In this project, you will create circuit name cards for a holiday table setting inside a magnetic mint tin. Cursive handwriting is part of the conductive trace that completes the circuit.

Using the LEDs in the Circuit Scribe kit, you can also decide whether they glow with red or blue light by changing their direction. You can decide what the red and blue LEDs mean. For Thanksgiving, we are using the colors to show food preference - red for meat eaters and blue for vegetarians!

1. Continue to the next step.

## Step 2: Bill of Materials

You will need the following components and supplies to complete this project:

Circuit supplies

Circuit Scribe conductive ink pen

Circuit Stencil

Mint Tin (example: Altoids tin)

3V Coin cell battery

Bi-LED module

Craft materials

Colored card stock

Tape

Scissors

Small binder clip

## Step 3: Simple Circuit

In this step, you will play with the circuit in the Workplane. It is simply an LED and battery connected in series.

There are two key aspects to this project:

-The lines between the battery and LED can by loopy and curvy, as long as they are continuous

-You can flip the LED module around to change its color

1. Simulate the circuit by pressing the "Start Simulation" button. The blue LED should come on.
2. Turn off the simulation, and try flipping the LED by 180 degrees. Highlight the module and press the "R" key until it is turned around.
3. Try simulating the circuit again. Does the red light turn on?
4. Usually LEDs only work in one direction. The Circuit Scribe LED modules have 2 LEDs wired in opposite directions, which lets you flip it around to change the color. A simple circuit diagram for the bi-directional LED is below.
5. Continue to the next step.

## Step 4: Assemble the Mint Tins

In this step you will prepare the craft materials for the project.

1. First, decide how many place cards you are going to make. Open up all of the mint tins and try to make them open up to the same angle. You can use a strip of scotch tape to hold the lids in the right place.
2. Select two different colored pieces of card stock - one for the lining of the tin, and one to draw the circuit on.
3. Cut the outer sheet to a 3.5 x 4.5" rectangle. Aim for a size slightly larger than this so you can make small adjustments with your scissors, if needed. Fold the corners in slightly to fit the rounded corners of the mint tin.
4. Slide the paper into the mint tin so it is braced against the top and bottom corners.
5. Finally, cut the inner paper to a 3 x 4.25" rectangle. You will use this for the paper circuit in the next step!
6. Continue to the next step.

## Step 5: Draw the Circuit

In this step, you will write your dinner guest's name in cursive, and incorporate it into a simple LED circuit!

1. Fold over the bottom right corner of the smaller card stock rectangle over the coin cell battery, as shown. This will make about a 1" triangle and create a soft crease.
2. Draw and fill in 1/2 inch round pads on both sides of the fold, as shown. This is the battery holder.
3. Use the Circuit Stencil to define two pads for the bi-LED next to the battery holder.
4. Write your guest's name in cursive on the top half of the card. Make sure all of the letters are connected to each other with silver ink!
5. Complete the circuit by drawing the three lines shown. You can get creative with wavy and curvy lines or by drawing leaves or other symbols.
6. Next clip fold the coin cell battery into the corner of the paper and hold it together with a mini binder clip.
7. Nest the circuit into the mint tin that you prepared in the previous step. Click the bi-LED module onto its pads. You might need to adjust the two pieces of paper a little to make sure the module magnets stick to the tin. When finished, the LED will light up!
8. Finish the rest of the place cards and decide whether to flip each LED to the red or blue side. Happy Holidays!

Congratulations, you have completed this project!

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