This instructable will show you how to make a simple sequencer that plays a little melody. You can hear how it sounds here:
It is up to you to modify the code to do many other things. Possible examples could be a midi controlled synth (sample code included), it could be a strange noise machine like this one:
Or you could detect touch and convert it into sound patterns:
Step 1: Parts
Don't worry if you don't have the exact values. It will probably work, but might be with lower sound quality. The Arduino is not powerful enough to drive a pair of headphones so you will need some kind of preamp for that - e.g. a headphone preamp like this one.
Step 2: Add the Components to Your Breadboard
Step 3: Connect to the Arduino Board
Step 4: Connect to the Speakers
Step 5: Upload Code
Below are the simplified steps to uploading the code to your Arduino board. If you are brand-new to Arduino, you can find a great step-by-step guide here to help you get your board connected and up and running, it's very simple and then you can continue with the below steps.
- Download Arduino: www.arduino.cc
- Connect the Arduino board to the computer via usb.
- Download the code from github here: https://github.com/Illutron/ArduinoSynth (Old code - look below)
- Upload the code to the Arduino board.
Congratulations - you are ready to go!
A new version of the synth can be found below:
This version works with the newest version of the Arduino Ide and the whole synth has been simplified. It should be more simple to hack and modify for ones own needs.
The output should be connected to pin 11 (Configurable to 3 as well). In the old code one should use pin 6.