This is a simple circuit that turns your initials into a nerdy masterpiece.

This project is aimed for beginners, but can be reproduced by anyone!  The circuit consists of a coin cell battery powering an LED, but is resisted by a sensor of your choice.

If you liked this ible, be sure to leave feedback.  Thanks and enjoy!

Step 1: Materials

This project uses fairly common parts that can be found at most places (with the exception of some of the sensors).

General parts:
--20mm coin cell (Sparkfun, Radioshack)
--20mm coin cell holder (Sparkfun, Radioshack)
--3mm LED (Sparkfun, Radioshack)
--Button (Sparkfun)
--Copper tape (Sparkfun, Amazon) or conductive ink (Bare Conductive)

--Card stock paper or thin cardboard (I am using card stock throughout this instructable)
--Hobby knife or scissors
--Jumper wires
--Soldering iron
--Helping hands
--Multimeter (optional, for debugging)

Sensors (there are many possibilities):
--Photocell (Sparkfun, Radioshack)
--Thermistor (Sparkfun)
--Flex sensor (Sparkfun)
--Trimpot (Sparkfun)
--SoftPot (Sparkfun)

(The description of each sensor is in the next step, or check sparkfun for a better one.)
This is awesome! Maybe you could add a speaker and turn this into a little photocell theremin with a few transistors! Like it!
It looks like pinomelean beat me to it! Check out his <a href="http://www.instructables.com/id/The-paper-theremin/" rel="nofollow">here</a>
Thanks for the suggestion! I was thinking of doing that with a 555 timer IC, but your idea sounds better. I'll look into it, and maybe add it to the improvements step!
That's a neat idea! It's a nice project for kids I think, turning their very own artwork into a working circuit. <br> <br>How does the bending sensor work? I can't see the led changing brightness in the video.
The bending sensor works like a potentiometer.
It's hard to see the LED's brightness change in the video, that's why I asked.
Sorry about that! I'm going to upload a new video of just the sensors soon, as well as a new video of the final product. Thanks for you feedback!
Thanks for a pretty neat I'ble yourself :-)
excellent presentation... particularly liked the trouble shooting.... jfe
How do I vote?
You can't. It's not in the contest yet. It's still getting approved. Thanks for looking at it though!
Love it!!

About This Instructable


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Bio: I am a senior in high school and a member of a FIRST robotics team. I love to tinker on my own, which is mostly ... More »
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