M5Stack PaperDIY Complete Kit · intermediaire · Utilisez le stockage extensible du PaperDIY pour charger des images ou des données depuis une carte MicroSD.
Hardware: PaperDIY kit, FAT32 formatted MicroSD card, PC. 2. Preparation: Place a 'test.txt' file at the SD card root. Insert the card into the case slot. 3. Setup: Ensure SD.h library is included. Check default SPI pins for ESP32-S3. 4. Code: In setup(), initialize the card with SD.begin(CS_PIN). Check boolean return. If successful, open file with SD.open("test.txt", FILE_READ). 5. Commands: Read content line by line with String line = file.readStringUntil('\n'). Display data on serial monitor for debug. 6. Verification: Open serial monitor at 115200 bauds. File content should display. If failed, check FAT32 format and correct insertion. 7. Next steps: Try loading a grayscale bitmap image to display on the e-paper screen via M5GFX.