Lo scenario
A hobbyist is designing an ESP32-driven LED matrix display and needs a clean netlist to understand row/column scanning and current limiting before moving to a HUB75 panel.
Cosa contiene questo disegno
Leggi le decisioni che ne stanno alla base.
01
Use row-source and column-sink SPST switches to model scan drivers as two-terminal elements, keeping the netlist simple and renderable.
02
Add 220R series resistors to each LED to set approximately 10mA from the 5V rail.
03
Include a 100uF decoupling capacitor across VCC and ground for stable scanning.
Reuse for any small-to-medium multiplexed LED matrix (8x8 to 16x16) where discrete or shift-register drivers are used; adapt values for RGB or higher voltage.