Category: Advanced

JQ6500 MIDI MP3 Player Module – Part 2

Having played with my JQ6500 a little now, I just wanted to finish the project by building a shield to support the module's use with an Arduino Uno. Warning! I strongly recommend using an old or second hand keyboard for your MIDI experiments.  I am not responsible for any damage to expensive instruments! These are the … Continue reading JQ6500 MIDI MP3 Player Module – Part 2 →

OLED MIDI Display – Part 2

As I mentioned in my previous post, it should be possible to connect multiple displays to the same microcontroller. This projects looks into that in a bit more detail. Spoiler - it almost works, but has software limitations!  Read on for details. Warning! I strongly recommend using an old or second hand keyboard for your MIDI … Continue reading OLED MIDI Display – Part 2 →

MCP4725 Digital to Analog Converter – Part 3

My plan was always to try to use my MCP4725 board with Mozzi eventually, but there is one thing I came to realize that has stopped that ambition.  You can't talk I2C from an interrupt routine using the standard Arduino Wire libraries.  Mozzi uses an interrupt routine to output the audio samples at the required … Continue reading MCP4725 Digital to Analog Converter – Part 3 →

Keyboard MIDI Matrix Decode

Following on from my Keyboard Matrix Decode I've now added MIDI out!  So I have a full sized MIDI controller keyboard for the cost of a cheap Arduino Nano clone and a couple of passive components! https://youtu.be/kqcfxiKIzi4 Warning! I strongly recommend using an old or second hand keyboard for your MIDI experiments.  I am not responsible for … Continue reading Keyboard MIDI Matrix Decode →

Arduino Multi Mozzi String Synth – Part 2

This projects takes another look at the Arduino Multi Mozzi String Synth and takes a slightly different approach to create a simple four-note polyphonic version of the string synth. To combine the outputs I'm using my Simple Passive Audio Mixer, but that isn't necessarily required. It also relies on (and builds in capability to support) the Arduino … Continue reading Arduino Multi Mozzi String Synth – Part 2 →

Arduino MIDI R2R Digital Audio

With all the excitement of experimenting with Mozzi, I never really finished my R2R digital audio series.  This final part adds MIDI to the R2R shield I built in Arduino R2R Digital Audio – Part 3. https://youtu.be/i6Y9QiTxTeQ Warning! I strongly recommend using an old or second hand keyboard for your MIDI experiments.  I am not responsible for … Continue reading Arduino MIDI R2R Digital Audio →

Arduino Multi Mozzi String Synth

This projects takes the Arduino Mozzi String Synth and combines it with the principles from the Arduino Multi MIDI Tone Module – Part 2 to create a simple four-note polyphonic version of the string synth. See Arduino Multi Mozzi String Synth - Part 2 for a development that gives a different option for passing the signal between … Continue reading Arduino Multi Mozzi String Synth →