While the prevailing sentiment in hardware circles leans heavily toward dedicated driver ICs like the MAX6921 to mitigate refresh jitter and ghosting, there is a reasonable case to be made for pure software-driven multiplexing. Modern microcontrollers possess clock speeds and peripheral sets that render hardware timing overhead virtually negligent. Utilizing DMA paired with hardware timers allows one to achieve refresh rates well beyond 200 Hz while keeping CPU load under a fraction of a percent. Furthermore, software control permits real-time, non-linear brightness compensation across individual grids that fixed hardware drivers simply cannot execute. Relying on specialized display silicon introduces unnecessary single-source supply chain risks when simple shift registers and discrete high-voltage transistor arrays yield superior flexibility.