esp-iot-solution/examples/camera/basic

Supported Targets	ESP32	ESP32-S2	ESP32-S3

Camera Basic Example

This example demonstrates how to initialize the camera sensor and then get the data captured by the sensor.

See the README.md file in the upper level camera directory for more information about examples.

How to use example

Hardware Required

• A development board with camera module (e.g., ESP-EYE, ESP32-S2-Kaluga-1, ESP32-S3-EYE, etc.)
• A USB cable for power supply and programming

Configure the project

idf.py menuconfig

• Open the project configuration menu (idf.py menuconfig -> Camera Pin Configuration) to configure camera pins.

Build and Flash

Build the project and flash it to the board, then run monitor tool to view serial output:

idf.py -p PORT flash monitor

(Replace PORT with the name of the serial port to use.)

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output

I (325) camera: Detected OV2640 camera
I (325) camera: Camera PID=0x26 VER=0x42 MIDL=0x7f MIDH=0xa2
I (504) s2 ll_cam: node_size: 3840, nodes_per_line: 1, lines_per_node: 6
I (504) s2 ll_cam: dma_half_buffer_min:  3840, dma_half_buffer: 15360, lines_per_half_buffer: 24, dma_buffer_size: 30720
I (512) cam_hal: buffer_size: 30720, half_buffer_size: 15360, node_buffer_size: 3840, node_cnt: 8, total_cnt: 10
I (522) cam_hal: Allocating 153600 Byte frame buffer in PSRAM
I (529) cam_hal: Allocating 153600 Byte frame buffer in PSRAM
I (535) cam_hal: cam config ok
I (539) ov2640: Set PLL: clk_2x: 1, clk_div: 3, pclk_auto: 1, pclk_div: 8
I (714) example:take_picture: Taking picture...
I (855) example:take_picture: Picture taken! Its size was: 153600 bytes

Troubleshooting

• If the log shows "gpio: gpio_intr_disable(176): GPIO number error", then you probably need to check the configuration of camera pins, which you can find in the project configuration menu (idf.py menuconfig): Component config -> Camera Pin Config.
• If the initialization of the camera sensor fails. Please check the initialization parameters and pin configuration of your camera sensor.