I've try to save an image from ESP32-CAM to SD Card. After uploading the code, i opened the Serial Monitor at a baud rate of 115200, then pressed the ESP32-CAM reset button to turn on ESP32CAM, i got an error like the following. For your information, the memory was formatted to FAT32. Can anyone help? This is the error output : Card Mount Failed #include "esp_camera.h" #include "Arduino.h" #include "FS.h" // SD Card ESP32 #include "SD_MMC.h" // SD Card ESP32 #include "soc/soc.h" // Disable brownour problems #include "soc/rtc_cntl_reg.h" // Disable brownour problems #include "driver/rtc_io.h" #include // read and write from flash memory // define the number of bytes you want to access #define EEPROM_SIZE 1 // Pin definition for CAMERA_MODEL_AI_THINKER #define PWDN_GPIO_NUM 32 #define RESET_GPIO_NUM -1 #define XCLK_GPIO_NUM 0 #define SIOD_GPIO_NUM 26 #define SIOC_GPIO_NUM 27 #define Y9_GPIO_NUM 35 #define Y8_GPIO_NUM 34 #define Y7_GPIO_NUM 39 #define Y6_GPIO_NUM 36 #define Y5_GPIO_NUM 21 #define Y4_GPIO_NUM 19 #define Y3_GPIO_NUM 18 #define Y2_GPIO_NUM 5 #define VSYNC_GPIO_NUM 25 #define HREF_GPIO_NUM 23 #define PCLK_GPIO_NUM 22 int pictureNumber = 0; void setup() { WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector Serial.begin(115200); //Serial.setDebugOutput(true); //Serial.println(); camera_config_t config; config.ledc_channel = LEDC_CHANNEL_0; config.ledc_timer = LEDC_TIMER_0; config.pin_d0 = Y2_GPIO_NUM; config.pin_d1 = Y3_GPIO_NUM; config.pin_d2 = Y4_GPIO_NUM; config.pin_d3 = Y5_GPIO_NUM; config.pin_d4 = Y6_GPIO_NUM; config.pin_d5 = Y7_GPIO_NUM; config.pin_d6 = Y8_GPIO_NUM; config.pin_d7 = Y9_GPIO_NUM; config.pin_xclk = XCLK_GPIO_NUM; config.pin_pclk = PCLK_GPIO_NUM; config.pin_vsync = VSYNC_GPIO_NUM; config.pin_href = HREF_GPIO_NUM; config.pin_sscb_sda = SIOD_GPIO_NUM; config.pin_sscb_scl = SIOC_GPIO_NUM; config.pin_pwdn = PWDN_GPIO_NUM; config.pin_reset = RESET_GPIO_NUM; config.xclk_freq_hz = 20000000; config.pixel_format = PIXFORMAT_JPEG; if(psramFound()){ config.frame_size = FRAMESIZE_UXGA; // FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA config.jpeg_quality = 10; config.fb_count = 2; } else { config.frame_size = FRAMESIZE_SVGA; config.jpeg_quality = 12; config.fb_count = 1; } // Init Camera esp_err_t err = esp_camera_init(&config); if (err != ESP_OK) { Serial.printf("Camera init failed with error 0x%x", err); return; } //Serial.println("Starting SD Card"); if(!SD_MMC.begin()){ Serial.println("SD Card Mount Failed"); return; } uint8_t cardType = SD_MMC.cardType(); if(cardType == CARD_NONE){ Serial.println("No SD Card attached"); return; } camera_fb_t * fb = NULL; // Take Picture with Camera fb = esp_camera_fb_get(); if(!fb) { Serial.println("Camera capture failed"); return; } // initialize EEPROM with predefined size EEPROM.begin(EEPROM_SIZE); pictureNumber = EEPROM.read(0) + 1; // Path where new picture will be saved in SD Card String path = "/picture" + String(pictureNumber) +".jpg"; fs::FS &fs = SD_MMC; Serial.printf("Picture file name: %s\n", path.c_str()); File file = fs.open(path.c_str(), FILE_WRITE); if(!file){ Serial.println("Failed to open file in writing mode"); } else { file.write(fb->buf, fb->len); // payload (image), payload length Serial.printf("Saved file to path: %s\n", path.c_str()); EEPROM.write(0, pictureNumber); EEPROM.commit(); } file.close(); esp_camera_fb_return(fb); // Turns off the ESP32-CAM white on-board LED (flash) connected to GPIO 4 pinMode(4, INPUT); digitalWrite(4, LOW); rtc_gpio_hold_dis(GPIO_NUM_4); delay(2000); Serial.println("Going to sleep now"); delay(2000); esp_deep_sleep_start(); Serial.println("This will never be printed"); } void loop() { }