Not sure that this is the right place to ask. I use platformio 4.3.4 with the arduino framework. In various sketches that I looked at, it is implied that loop() is called within an endless loop so ...

And in fact, the particular way that Arduino repeatedly calls the loop() function makes knowing a bit about scoping nearly mandatory: all of your function-call-duration variables get wiped each ...

An Arduino stepper library for the Arduino Due board that can run stepper motors using timer interrupts. This is a modification of the popular AccelStepper library that runs the motors using timer ...