Using accelstepper with button control and home

[DaveX]

Sounds much like:

Set stepper motor in close loop with two micro switches

Good morning. I have used the search function here but have not yet found a good final solution. I hope that you can give me a few tips on how to implement this setup. I would like to create the following test environment: Arduino Mega2560 one stepper motor C17HD2024-01N one TMC2130 stepper driver Two spring-loaded micro switches One 10k potentiometer (analogue) trapezoidal threaded rod Slide for trapezoidal thread This test setup should satisfy this condition: The carriage should travel a …

I'd code it with a Finite State Machine as in

Set stepper motor in close loop with two micro switches

I like diagramming them out: [image] graphviz online Each of the bubbles is a "state" in the switch case statement, and each of the arrows is a transition from one state to the other, often implemented with an if-statement within the case clause. From the diagram, the IDLE, MOVING_CW, MOVING_CCW cases are the full set of names one might use for describing how the system works, and the switch-case scheme makes it easier to separate the state-changing transitions cleanly. The separate states e…

... but add a HOMING state:

Graphviz online