M5Stack PaperDIY Complete Kit · intermediaire · Apprenez à réduire la latence et la consommation d'énergie en utilisant les modes de rafraîchissement partiel plutôt que complet.
Hardware: PaperDIY Complete Kit, USB-C cable, PC with Arduino IDE or PlatformIO. 2. Setup: Install the M5EPD library. Initialize the display with M5.begin() and M5.EPD.begin(). 3. Wiring: No external wiring needed, kit is pre-assembled. Ensure the 8-bit parallel bus is correctly configured in pin definitions if modifying the schematic. 4. Commands: Use M5.EPD.DrawBitmap() to draw to a memory buffer. For partial refresh, use M5.EPD.RefreshPartial(0, 0, 960, 540) after updating the desired area. Avoid frequent calls to M5.EPD.Refresh() (full refresh) which are slower. 5. Verification: Display a clock updating every second. Observe update speed. Compare with full mode to note latency differences. 6. Deep Dive: Implement logic to merge refreshed zones to minimize partial refresh cycles on adjacent areas.