Yes, the delay does indeed seem to be taking effect. When increasing the delay it takes much more time to execute the steps, other than that I notice no difference. Except, that the beeping sound maybe changes just a little.

I use the "wavgat extension board": de.aliexpress.com/item/32898982947.html?gatewayAdapt=glo2deu
The motor is a nema 17HS4401: www.cytron.io/p-nema-17hs4401-bipolar-stepper-motor
Here's how I connected the pins: (E-enable D-direction S-step)
bd1x4rJ
Fmb6QpT

Actually, before I had a raspberry pi 4 where I used the same focuser setup, just with the astroberry focuser driver, if that helps.. It worked after I played a little with the enable pin, since the driver is not made for the DRV8825.

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