If you’re building a CNC or laser, there’s an excellent chance you’ll be using Grbl to get moving. It’s also a pretty safe bet you’d end up running it on some variation of the Arduino ...

and went on to wiring a grbl-fueled Arduino into the controller box. They reverse-engineered the motor driver connections – those go through a 74HC245 buffer between the original CPU and the ...

that are too powerful for the normal drivers included on grbl Arduino shields (or integrated Arduino+drivers equivalents), and so I have been considering designing my own to link to external motor ...