ESP32-CAM XRZ00D1-V240 HTTP Server example with latest ESP-IDF

HTTP Camera Server example with latest ESP-IDF and chineese (clone?) Ai-Thinker ESP32-CAM module with XRZ00D1-V240 camera module

What is ESP32-CAM?

It's module based on ESP32 SOC with camera and SD-card slot

What is XRZ00D1-V240

It's OV2640 (or compatible?) camera module which you can get with latest ESP32-CAM modules from Aliexpress, Banggod, etc.

Is there troubles?

Yep, it doesn't work out of the box with any example firmware. Module sells without any source codes ¯_(ツ)_/¯

How to build

1. You need latest ESP-ID SDK. How to install it.
2. Clone repo
3. Run idf.py menuconfig and set WIFI SSID and password (myssid/mypassword is default)
4. Run idf.py build

How to flash

1. Short IO0 and GND on ESP-32 module to boot into flash mode
2. Connect ESP32-CAM to any serial adapter (U0R <— TX, U0T —> RX)
3. To flash you may run idf.py -p /dev/ttyUSB0 flash where /dev/ttyXXX is your serial port
4. After flashing you shoud unconnect IO0 and GND and push RESET button on module to boot new firmware

How to check

1. You can use idf.py monit to check boot logs
2. Connect via wifi to it's ssid
3. Open http://192.168.4.1/jpg to make shot

Troubleshooting

Check power source. My module works with 3.3v even 5v, but when powering with 3.3v there is artifacts on image.

If nothing works, try to flash pre-built binary with esptool:

esptool.py -p YOUR_SERIAL_PORT_PATH -b 460800 --after hard_reset write_flash --flash_mode dio --flash_size detect --flash_freq 40m 0x1000 binary/bootloader.bin 0x8000 binary/partition-table.bin 0x10000 binary/ESP32-CAM_HTTP_AP.bin

How it made?

Built with sources of WiFi softAP example, Simple HTTPD Server Example, ESP32 Camera Driver (modified)

ESP32 Camera Driver modified due to this error while starting:

E (1710) ledc: requested frequency and duty resolution can not be achieved, try reducing freq_hz or duty_resolution. div_param=3
E (1720) camera_xclk: ledc_timer_config failed, rc=ffffffff

Need to move periph_module_enable(PERIPH_LEDC_MODULE); from top to end of function in /components/esp32-camera/driver/xclk.c file (thanks @masterd89 for solution)

In menuconfig enabled PSRAM (Serial flasher config ---> Flash size (4 MB))

In menuconfig flash size setted to 4M (Component config ---> ESP32-specific ---> [*] Support for external, SPI-connected RAM)