ESP32-CAM

HDK

ESP32-CAM Pin Definition

// 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

SD PART

• DAT2 IO12
• DAT3 IO13
• CMD IO15
• DAT0 IO2
• DAT1 IO4
• CLK IO14

M5 Stack

• https://docs.m5stack.com/#/en/unit/esp32cam?id=pinmap

Interface OV2640 Pin ESP32Cam

• SCCB Clock SIOC IO23
• SCCB Data SIOD IO22
• System Clock XCLK IO27
• Vertical Sync VSYNC IO25
• Horizontal Reference HREF IO26
• Pixel Clock PCLK IO21
• Pixel Data Bit 0 D2 IO17
• Pixel Data Bit 1 D3 IO35
• Pixel Data Bit 2 D4 IO34
• Pixel Data Bit 3 D5 IO5
• Pixel Data Bit 4 D6 IO39
• Pixel Data Bit 5 D7 IO18
• Pixel Data Bit 6 D8 IO36
• Pixel Data Bit 7 D9 IO19
• Camera Reset RESET IO15
• Camera Power Down PWDN see Note 1
• Power Supply 3.3V 3V3 3V3
• Ground GND GND
• SCL IO4
• SDA IO13
• 5V 5V
• GND GND

SCH

• M5stack CAM - https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/schematic/esp32-cam/M5CAM-ESP32-A1-POWER.pdf
• ESP32-CAM http://wiki.ai-thinker.com/_media/esp32_cam%E5%BC%80%E5%8F%91%E6%9D%BF%E5%8E%9F%E7%90%86%E5%9B%BE.pdf
• Or here https://www.electrodragon.com/w/File:Ai-thinker-esp32-cam.pdf

SDK

Code

• https://github.com/yoursunny/esp32cam

Logs

• rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
• configsip: 0, SPIWP:0xee
• clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
• mode:DIO, clock div:1
• load:0x3fff0018,len:4
• load:0x3fff001c,len:1216
• ho 0 tail 12 room 4
• load:0x40078000,len:9720
• ho 0 tail 12 room 4
• load:0x40080400,len:6352
• entry 0x400806b8
• Initializing the camera module...Ok!
• Initializing the MicroSD card module... Starting SD Card
• Picture file name: /picture0.jpg
• Saved file to path: /picture0.jpg

Fail Log

• rst:0x1 (POWERON_RESET),boot:0x36 (SPI_FAST_FLASH_BOOT)
• configsip: 0, SPIWP:0xee
• clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
• mode:DIO, clock div:1
• load:0x3fff0018,len:4
• load:0x3fff001c,len:1216
• ho 0 tail 12 room 4
• load:0x40078000,len:10864
• load:0x40080400,len:6432
• entry 0x400806b8
• [E][sccb.c:154] SCCB_Write(): SCCB_Write Failed addr:0x30, reg:0xc9, data:0x80, ret:-1
• [E][sccb.c:154] SCCB_Write(): SCCB_Write Failed addr:0x30, reg:0x05, data:0x01, ret:263
• [E][camera.c:1215] camera_init(): Failed to set frame size
• [E][camera.c:1270] esp_camera_init(): Camera init failed with error 0x20002