Arduino Projects : Step sequencer synthesizer and sound effectsbox on Arduino Show

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Oct 03

Step sequencer synthesizer and sound effectsbox

2009 by Patric

arduino-noise-box-synth
This project is an Arduino based step sequencer, synthesizer and sound effects box.

The user interface is kept very simple, with just four knobs, three push buttons, 8 LEDs and a power switch. The speaker is connected straight to a pin on the Arduino via the volume knob - everything is done in the Arduino using PWM to generate analog waveforms. The LEDs indicate the current step in sequencing mode, and provide light patterns in noise modes.

The basic features are:

16-step programable sequencer with adjustable frequency and duration for each step
synthesizer with 4 output waveforms (sine, square, triangle and sawtooth)
noise generation (sirens, laser beam, random noise)
special random sound modes

Thanks Tim [link]