An Arduino MIDI/trigger/gate master clock
Basically, a hardware clone of https://github.com/MarcBoule/ImpromptuModular/#clocked
Used some code and ideas from https://github.com/DieterVDW/arduino-midi-clock
Tools and instruments:
C++ reference https://en.cppreference.com/w/
Great help and encouragement from the Stack Overflow community (never had to post anything myself, but found a plethora of good solutions)
Visual Studio Code https://github.com/microsoft/vscode
PlatformIO https://github.com/platformio/platformio-core