🛠 Optimize e-Ink display with IT8951 driver
Hardware: M5Paper board, USB-C cable, PC with Arduino IDE or PlatformIO. 1. Install the M5GFX library via the library manager. 2. In setup(), initialize the screen with M5.begin() and configure the IT8951 driver for grayscale mode. 3. Use M5.Display.setBrightness() to adjust backlight if needed, though e-Ink is reflective. 4. For fast display, prefer partial updates (updatePartial) over full refresh which causes a black flash. 5. Draw shapes with grayscale nuances (0-15) to test color depth. 6. Verify optimal contrast under direct ambient light. Deepening path: Implement a buffer system to reduce flash memory writes.
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