Arduino Audio and MIDI Frameworks

I've been collecting bookmarks for interesting Arduino audio projects for a while now, and having now played with the XIAO SAMD21 I started looking back over my list for other things to try.  One thing that occurred to me is that there are a now a number of more powerful audio frameworks available for a …

XIAO SAMD21, Arduino and MIDI – Part 8

This post brings together some custom PCB designs for use with a Seeedstudio XIAO SAMD21. Other parts in this series: Part 1 - Introduction to the XIAO SAMD21 and some projects to get started. Part 2 - Looking at accessing additional serial ports and using them for MIDI. Part 3 - Mozzi FM synthesis using …

XIAO Pi USB MIDI Device PCB – Part 2

Here are the build notes for my XIAO Pi USB MIDI Device PCB. Warning! I strongly recommend using old or second hand equipment for your experiments.  I am not responsible for any damage to expensive instruments! These are the key tutorials for the main concepts used in this project: XIAO SAMD21, Arduino and MIDI 3V3 …

XIAO Pi USB MIDI Device PCB

One thing missing from a MiniDexed build is USB device support.  The Raspberry Pi will act as a USB host to USB devices, but the MiniDexed can't be plugged into another USB host.  Some versions of the Raspberry Pi (notably the zero and 3A+) support USB On The Go (OTG) which means they can act …

XIAO MIDI Synth Board PCB – Part 2

Here are the build notes for the XIAO MIDI Synth Board PCB. Warning! I strongly recommend using old or second hand equipment for your experiments.  I am not responsible for any damage to expensive instruments! These are the key tutorials for the main concepts used in this project: XIAO SAMD21, Arduino and MIDI 3V3 MIDI …

XIAO MIDI Synth Board PCB

This is a synth IO board based on my XIAO MIDI Proto PCB for the Seeed Studio XIAO series of microcontrollers.  It can support four or eight potentiometers, depending on the XIAO board being used. Build Guide: XIAO MIDI Synth Board PCB – Part 2 Warning! I strongly recommend using old or second hand equipment for …

XIAO SAMD21, Arduino and MIDI – Part 7

This post looks at the possibilities of using I2C peripherals with a Seeedstudio XIAO SAMD21 and the XIAO Expansion Board.  The projects should work with either USB MIDI or serial MIDI via an external MIDI module. Note: There is just one project described at present, but others will be added to this post as they …

XIAO SAMD21, Arduino and MIDI – Part 6

This post looks at a series of relative straight forward MIDI control projects using the Seeedstudio XIAO SAMD21 and the XIAO Expansion Board.  The projects should work with either USB MIDI or serial MIDI via an external MIDI module. Other parts in this series: Part 1 - Introduction to the XIAO SAMD21 and some projects …

XIAO SAMD21, Arduino and MIDI – Part 5

This part looks at USB host device support on the SAMD21 based XIAO.  This means that rather than plug the XIAO into something else, like a computer, instead other things, like USB MIDI keyboards and controllers, can be plugged into the XIAO. Unfortunately this wasn't as smooth and successful as other posts, but there still …

XIAO SAMD21, Arduino and MIDI – Part 4

One of the nice things about the SAMD21 based microcontrollers like the XIAO is the embedded USB support.  Whilst it can make the uploading a little, er, interesting, it also allows for the building of USB devices.  This post looks at how to turn the XIAO into a USB MIDI device for more MIDI routing. …