The Octo-phonic Synthesizer

The Octo-phonic Synthesizer is a polyphonic synthesizer that is able to produce eight tones that in the end, creates a musical scale. Inspiration for this creation came from this project. I like to think of it as an electronic organ. I used the core foundation of blinkyblinky's idea, but also focused more in detail to the craftsmanship of the housing of the actual synthesizer and the other parts.  This proj ...

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Make a Mini LED Siren powered by Arduino

This is one of the first projects I have made with Arduino. It's a little siren with a LED that fades and blinks on and off. It demonstrates basic use of LEDs and speakers. Also check out this article: 8-Pin Programming Shield Constructive criticism is appreciated! Let's get started!   Step 2: Solder jumper wires to the button and speaker Fire up your soldering iron and attach wires to each of leads on ...

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Arduino Noise Machine Jacket

As a project for one of my college classes, we were asked to create something using the Arduino. After a few different ideas, I settled on putting an Arduino noise machine into a suit jacket. It uses parts of the jacket to make function, so that it appears that the jacket is making sounds for no reason. The code that I used was from blinkyblinky, and can be found here. Using his project as the basis, its a ...

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Arduino Controlled Bell Tower or Carillon

This is a set of musical bells which are driven by solenoids and controlled by an Arduino microcontroller. There are 8 bells covering one octave. The bells are controllable from a PC, or the tower can stand alone and play pre-programmed melodies. Check out the final page for video of it in action. Step 1: Parts The following parts were used: 1 set of chromatic handbells. I got these from my local Aldi for $ ...

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Arduino Frequency Detection

As a follow up to the Arduino Audio Input tutorial that I posted last week, I wrote a sketch which analyzes a signal coming into the Arduino's analog input and determines the frequency.  The code uses a sampling rate of 38.5kHz and is generalized for arbitrary waveshapes.  I've also turned the LED attached to pin 13 into a clipping indicator, so you know if you need to adjust your signal's amplitude as you ...

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