1.02

Minor Versionm

by Joshua

Introduction

Conductive Dough is extremely fun to use in place of a Potentiometer (variable resistor) in projects and you can use it to control all sorts of things. In this activity we'll be using dough to control the sound being produced by a Piezo Speaker hooked up to one of our Touch Boards.

If you have a Robotics Board you can also do this project, you'll just have to change a couple of pin numbers in the code.

Video Overview

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  1. Grab a Resistor and screw it into the Screw Terminal Chip.
    • Grab a Resistor and screw it into the Screw Terminal Chip.

    • We're using a 460 ohm resistor, however a resistor of near or similar value will work.

    • If you don't have a Screw Terminal Chip around you can always just use Conductive Tape to hold the Resistor down. We attached a small diagram of what that would look like at the end of this write up.

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  2. The Touch Board won't lay flat onto our 8x16 base plate, so we'll need to make a platform for it.  We're using several thin plates to create the platform.
    • The Touch Board won't lay flat onto our 8x16 base plate, so we'll need to make a platform for it. We're using several thin plates to create the platform.

    • You NEED to have bricks below the pins that you're using, otherwise the tape won't make a connection. We're using both Grounds, Pins 14 and 16, and the VIN on the right side.

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    • Run Conductive Tape from Pin 16 to where you want your Piezo Speaker. Cut excess tape and press down with your fingernail or the Piezo Speaker.

    • Run Conductive Tape from the left side Ground Pin (white circle) to the Piezo Speaker.

    • Press your Piezo Speaker into place.

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    • Place your Screw Terminal near the top right corner for placement.

    • Run a line of Conductive Tape from Pin 14 to the white side of the Screw terminal.

    • Cut excess tape and press to fit.

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    • Run a line of Conductive Tape from the VIN pin to the blue side of the Screw Terminal.

    • Cut excess tape and press to fit.

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    • Use a piece of Conductive Tape and and go from the second hole on the Screw Terminal off the side of your building surface.

    • Fold over the tape onto itself so it's conductive on both sides. You can also just run it to the bottom side of the base plate as well.

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    • Use a longer line of tape and go from the Ground pin off the side of the board.

    • Start by threading a long piece of tape UNDER the pin 14 line of tape.

    • Connect one end to the Ground pin. Let the other end hang off the edge, and fold it over like you did before.

    • Use a pencil, screw driver, or paper clip to push down the tape so that the Ground line isn't touching the Pin 14 line.

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    • If you've never used your Touch Board before, review the Touch Board User Guide.

    • Plug your Touch Board into your computer and open up the Arduino Software.

    • Follow this link and choose either the ConstantTone or StepTone code. Copy and paste the code into a new project window in the Arduino Software.

    • Upload the Code.

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    • If you're using a Robotics board you'll need to change a couple of lines.

    • Change the Speaker Output Pin to 3.

    • Change the Input (Analog Input) to A5.

    • At the end of this write up is a diagram for how we suggest you hook up your Robotics Board, however the pins you use are entirely up to you.

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    • Leave your Touch Board plugged into your computer.

    • Use an Alligator Clip to connect your two Alligator Connection Points together.

    • No matter which code you're using, you should hear something come out of your speaker.

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    • Connect the second Alligator Clip.

    • Plug both Alligator Clips into the dough.

    • Stretch the dough, change shapes, and do all silly manner of things. The sounds coming out of the Piezo Speaker will change.

    • Add a second batch of dough to the mix and make a reaaaaaaalllllllllly lone line.

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Finish Line

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Joshua

Member since: 11/16/2017

47 Guides authored

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