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esp-idf-websocket-camera

Take a picture and Publish it via WebSocket.
This project use ESP32 Camera Driver.

ESP32 works as a WebSocket server.
Use your browser as a WebSocket client.

+----------+               +----------+               +----------+
|          |               |          |<-----Get------|          |
|  Camera  |<---Capture--->|  ESP32   |               |  Browser |
|          |               |          |----Picture--->|          |
+----------+               +----------+               +----------+

browser-3

Hardware requirements

ESP32 development board with OV2640 camera.
If you use other camera, edit sdkconfig.default.
From the left:

  • Aithinker ESP32-CAM
  • Freenove ESP32-WROVER CAM
  • UICPAL ESPS3 CAM
  • Freenove ESP32S3-WROVER CAM (Clone)

es32-camera

Software requirements

ESP-IDF V5.0 or later.
ESP-IDF V4.4 release branch reached EOL in July 2024.

Installation

For AiThinker ESP32-CAM, You have to use a USB-TTL converter.

ESP-32 USB-TTL
U0TXD RXD
U0RXD TXD
GPIO0 GND
5V 5V
GND GND
git clone https://github.com/nopnop2002/esp-idf-websocket-camera
cd esp-idf-websocket-camera
idf.py set-target {esp32/esp32s3}
idf.py menuconfig
idf.py flash monitor

Start firmware

For AiThinker ESP32-CAM, Change GPIO0 to open and press the RESET button.

Configuration

Set the following items using menuconfig.

config-top config-app

Wifi Setting

config-wifi-1

You can connect using the mDNS hostname instead of the IP address.
config-wifi-2

You can use static IP.
config-wifi-3

Select Board

config-board

Flash Light

ESP32-CAM by AI-Thinker has a flash light on GPIO4.

config-light

PSRAM

When you use ESP32S3-WROVER CAM, you need to set the PSRAM type.

config-psram

Take pictures using Browser

ESP32 acts as a WebSocket server.
Open index.html included in this project.
Push connect server button.
browser-1

Push take picture button.
browser-2

browser-3

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