On Fri, Feb 23, 2024 at 3:01 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > On Fri, Feb 23, 2024 at 1:36 PM Andy Shevchenko > <andy.shevchenko@xxxxxxxxx> wrote: > > On Fri, Feb 23, 2024 at 9:52 AM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > > > Note that most larger displays are not individual LEDs, but matrices > > > of LEDs. Do we want to drive/scan them from software, using a > > > gpio-7seg-matrix driver? > > > > LED matrices are the displays (like tinyDRM is for). > > TinyDRM is for rectangular matrices. > > Multiple 7-segment displays are usually multiplexed using a matrix, > using 7 (or 8) lines shared by the corresponding segments of all > displays, and one common line per display. > https://embedded-lab.com/blog/wp-content/uploads/2011/03/Lab11_Circuit_SevenSegmentMultiplexing.jpg Yes, that's what I call "dynamic" approach (in my translated terminology, I dunno the proper English one). With this in mind, you can read my message(s) above where I referred to it. -- With Best Regards, Andy Shevchenko
