Let's Control It

Hello,

i have a Stepper driver 4Ampere with puls and dir pin.
How can I control this amplifier with esp easy.

Best regards

Oliver

Depends on what you want to do.
Using longpulse_ms, you could already do really basic operations on the stepper motor.
See:
https://espeasy.readthedocs.io/en/lates ... ernal-gpio

For example use this in the rules: (replace 'X' with the GPIO you need for the direction, replace 'Y' with the GPIO for the pulses)
Then you can trigger an event like this, to make 1000 steps in the "up" direction:
event,stepup=1000

100 steps down:
event,stepdown=100

Hello,
thank you for your Answer.
I would like to control a stepper motor as a suntracker.
In the morning, approach limit switch 1 east. At midday, approach limit switch 2, south. In the evening, approach limit switch 3 west. Sunset back to the east.

Thank you
Oliver

How many steps does it roughly take between each limit switch?

Also what would be the best approach for your setup?
Divide the time between sunrise and noon in N pulses, or let it run a few pulses every minute (or 5 minutes), so it can overcome some friction to start moving.

Hello,
I'll try that out. I want to control via http request
In node red you have all expansion options.



With this command in the Browser or Node red, rotate the stepper left or right .
http://192.168.178.121/control?cmd=event,stepup.
http://192.168.178.121/control?cmd=event,stepdown

rule1
on stepup do
gpio,26,1
longpulse_ms,25,1,10,10,500
endon


rule2
on stepdown do
gpio,26,0
longpulse_ms,25,1,10,10,500
endon


Best regards

Oliver

For maintenance it is much easier to have those rules in a single rules file, no need to store them in separate files, as they are handled sequentially. The split was once, a long time ago, needed because of the way the rules files were then uploaded, but that has been resolved years ago.