Arduino LDR MIDI Piano

I always meant to go back to my Arduino LDR Pianola and extend it to more notes, but so far haven't quite got there. But this projects uses a multiplexer to link up eight LDRs to an Arduino and use it as a simple "keyboard" MIDI controller. https://youtu.be/Ne6J-a7ACwE Warning! I strongly recommend using old or second … Continue reading Arduino LDR MIDI Piano →

Arduino Light Mozzi Generator – Part 2

I've spent a fair bit of time playing with the Control_Echo_Theremin example and finally committed it to stripboard. I was originally aiming for a fully self-contained module, speaker and all, but after a day or so trying to find a simple amplifier that works well with a PWM output, I've put that on hold for … Continue reading Arduino Light Mozzi Generator – Part 2 →

Auduino Light Controller

For the last in this series about using Light Dependent Resistors (for now), I'm having another look at the Auduino Granular Synthesis project. These are the key Arduino tutorials for the main concepts used in this project: Arduino Analog Input Auduino Granular Synthesis If you are new to Arduino, see the Getting Started pages. Parts list Arduino … Continue reading Auduino Light Controller →

Arduino Light Mozzi Generator

Now we have our simple LDR circuit there are a number of other experiments we can try. This page suggests a few more ideas based on the examples provided with the Mozzi synthesis library. In part 2 I build this up on stripboard. Tutorials used in this project: Sounds from Sensors with Mozzi Mozzi Library … Continue reading Arduino Light Mozzi Generator →

Arduino Light Tone Generator

Having played a little with my 556 Timer Light Theremin I thought it time to get an LDR attached to an Arduino. A common extension to the Arduino Tone Generator is to replace the potentiometer with a light dependent resistor (LDR) to give a fun instrument that responds to light in a way similar to how a … Continue reading Arduino Light Tone Generator →

556 Timer Light Theremin

I found this "Atari Punk Light Theremin" circuit which uses a 556 timer chip but haven't been able to find out much about it on the Internet ... at least under that name... But I did find quite a lot about the "Atari Punk Console" which appears to have taken on an Internet life of … Continue reading 556 Timer Light Theremin →

WS001 – Tones, Notes and MIDI Out

This is the first of my worksheets collecting together a number of related projects with a single list of parts and a suggested "building order". This worksheet links together the following projects: Arduino Tone Generator Arduino Note Generator Simple Arduino Music Keyboard Arduino Simple MIDI Controller MIDI Patch Button Arduino LDR Pianola Arduino Piezo MIDI … Continue reading WS001 – Tones, Notes and MIDI Out →

Arduino LDR Pianola

This project uses light-dependent resistors to build a pianola roll by detecting light and dark on a piece of paper to play a MIDI note. This one is a bit fiddly, but in terms of building the circuit and understanding the code, I've kept it in the "beginner" category. The issue is that it is … Continue reading Arduino LDR Pianola →