I’m working on a project that will use two 64x32 panels for a 128 (W) x 32 (H) display. I’m using the Teensy 3.6 for the processor.
My project though also needs to respond to button inputs in the <10 ms range. Are there any parts of the SmartMatrix library that would be blocking for large amounts of time? From the little I understand, the screen refreshes are handled by DMA channels in the background.
I plan to read bitmaps from the SD card, from what I understand the library does not support this, but could I draw it out pixel by pixel? Or would this be incredibly slow and take a whole lot of time?