Turning a $20 smart ring into a DIY MIDI controller (Colmi R02 + WebMIDI API, hardware and DAW)

video upload by Floyd Steinberg

"Here's a super inexpensive #bluetooth #smartring which will dump raw data if politely asked to. So let's try to use that as a #midi / #synthesizer controller! Based on the work of ‪@atc1441‬ , more after the table of contents

00:00 demo: filter control, Y axis
00:19 hi / what is this?
00:41 shoutout to Aaron Christophel ‪@atc1441‬
01:01 Roland Neova / how to determine your ring size
01:22 what's in the box / hardware overview
02:01 it's not a bad smart ring!
02:22 mission statement
02:35 code overview & APIs
03:20 event handlers and MIDI CC
04:03 services and charateristics
04:78 explaining the hardware setup
05:48 patch /mod matrix setup
06:13 it's working! :-)
06:32 ... but it's very slow!
07:08 there's a custom firmware that speeds up data transfer
07:31 interpolation
08:05 example: using this in a DAW with LoopMidi
09:19 conclusion: not perfect, but the hardware certainly can do more
10:40 a very subtle joke / subscribe plxplx?

Links:
Colmi R02 smart ring https://www.aliexpress.us/item/325680...
ATC1441's github page (Firmware and -uploader): https://github.com/atc1441/ATC_RF03_Ring
My github page (MIDI translator): https://github.com/mrfloydst/smartrin...
RF03 Information https://www.bluexmicro.com/product/rf03/
List of MIDI CC commands https://www.presetpatch.com/midi-cc-l...

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