Hello, what is the maximum step rate that can be achieved using the AccelStepper library on the Arduino Nano ESP32?
Is it worth switching to the Nano ESP32 from the Nano Classic for higher step rates with this library?
Depends on the step rates you need and your sketch. With classic Nano you may reach about 5000 steps/sec ( if there is nothing else to do when the motor rotates ).
With Nano ESP32 ist is shurely much more - may be 8x or 10x. I didn't test so far, but it should be easy to test the max with a simple sketch. In the end it is a matter of your real sketch.