... the G-code is 'parsed' (or interpreted) by the software, so the specific code-parts are separated, identified and executed by separate routines for each code-type.
This HIGH/LOW-functionality is the core function of any controller - it's simply setting an output pin (selected by numbers) to the specified voltage level ... for higher currents, than the controller pins can drive, transistors or MOSFET's are used as subsequent current drivers ...
This HIGH/LOW-functionality is the core function of any controller - it's simply setting an output pin (selected by numbers) to the specified voltage level ... for higher currents, than the controller pins can drive, transistors or MOSFET's are used as subsequent current drivers ...