configuring my GPIO pins to linuxcnc with Raspberry pi 4

Hi everyone, I'm fairly new to this. You can say I am a noob in Linux.

We want to build a CNC machine for testing stuff. I'll be using nema 23 and 17 motors connected to TB6600 motor drivers as well as limit switches and other components down the line. This will all be connected to a raspberry pi 4 and we want to use the linuxcnc to control the motors and send gcode onto them.

I wanted to know if I would I go about the configurations on my Raspberry pi4 and the components so that the software can recognize these and give them control. i searched that i need to configure or map the GPIO pins in the HAL? any responses would be greatly appreciated. Thanks!

There is a dedicated GPIO driver available in 2.91 linuxcnc.org/docs/devel/html/drivers/hal_pi_gpio.html
The final (I hope) Raspberry Pi image for 2.91 is sitting in my google drive pending release since the weekend just gone:
drive.google.com/file/d/1IhrrdGRNvsdclVi...nUu/view?usp=sharing
Give it a go.

Is it possible to provide a tutorial for configuring the Raspberry Pi using GPIO with LinuxCNC?

Rod,

Also a newby here - trying to run LinuxCNC on a Raspberry pi4 and use the GPIO but getting an error that we don't have hal_pi_gpio module. Where do we find this? I've seen reference to this being part of Machinekit. Do we need to replace our existing LinuxCNC install with Machinekit or can we simply install the necessary hal_pi_gpio modules to get the GPIO running with our Pi4?

You need this linuxcnc.org/docs/stable/html/drivers/hal_gpio.html