Hack a voice changer to add an Arduino input

Another quick hack. I purchased a voice changer because I was looking for something cheap that could be hacked into an voice input device. Basically I wanted to animate a skull when I spoke. Added bonus, now the skull puppet would also have a scary voice.
I am going to show you how to hack a voice changer to use as a digital input for an Arduino project. I leave the output or reaction up to you.

Step 1 What you'll need

I am assuming that you have a little bit of electronics and soldering experience. I will also assume that you have some familiarity with Arduino.

You will need

•  A voice changer module. (8$ at Wallymart)
•  A 741 opamp ic.
• an LED of choice (not necessary, but provides a cute little visual input that things are working, and will provide clues as to how to change the circuit into a LED light organ.)
• a resistor for your led (220 ohms - 1 k will work alright, you only need this if you are using the LED)
• some hookup wire.

Tools

• Soldering iron and solder
• wire snips

Comments

[atif khair]

Great innovation that works on arduino because it can understand the input language and give output in better way.
Jaycon

[JuliaJohnmicheal]

(removed by author or community request)

[fjordcarver]

Can't believe what? ....Thanks?

[blinkyblinky]

Wallymart?

[fjordcarver]

Big place, usually has a Mark Donald's restaurant inside.

[blinkyblinky]

Mcdonalds.

[fjordcarver]

I don't like advertising, is it poor Instructables form to use the wrong names? I figured it would be clear enough. Sorry for the confusion.

[blinkyblinky]

I'm joking around but it may be confusing to others.