esp-idf-http-camera

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

Server Side

Download the server from here.

ESP32 Side

Software requirements

esp-idf v4.3 or later.

Hardware requirements

ESP32-CAM

Installation

Use a USB-TTL converter.

git clone https://github.com/nopnop2002/esp-idf-http-camera
cd esp-idf-http-camera
git clone https://github.com/espressif/esp32-camera components/esp32-camera
idf.py set-target esp32
idf.py menuconfig
idf.py flash monitor

Start firmware

Change GPIO0 to open and press the RESET button.

Configuration

Set the following items using menuconfig.

Wifi Setting

You can use the mDNS hostname instead of the IP address.

• esp-idf V4.3 or earlier
  You will need to manually change the mDNS strict mode according to this instruction.
• esp-idf V4.4 or later
  If you set CONFIG_MDNS_STRICT_MODE = y in sdkconfig.default, the firmware will be built with MDNS_STRICT_MODE = 1.

You can use static IP.

HTTP Server Setting

Attached File Name Setting

You can choose the file name on the HTTP server side from the following.

• Always the same file name
• File name based on date and time
  When you choose date and time file name, you will need an NTP server.
  The file name will be YYYYMMDD-hhmmss.jpg.

• Add FrameSize to Remote file Name
  When this is enabled, FrameSize is added to remote file name like this.
  20210520-165740_800x600.jpg

Select Frame Size

Large frame sizes take longer to take a picture.

Select Shutter

You can choose one of the following shutter methods

• Shutter is the Enter key on the keyboard
  For operation check

• Shutter is a GPIO toggle

  • Initial Sate is PULLDOWN
    The shutter is prepared when it is turned from OFF to ON, and a picture is taken when it is turned from ON to OFF.

  • Initial Sate is PULLUP
    The shutter is prepared when it is turned from ON to OFF, and a picture is taken when it is turned from OFF to ON.

I confirmed that the following GPIO can be used.

• Shutter is TCP Socket
  You can use tcp_send.py.
  python ./tcp_send.py

• Shutter is UDP Socket
  You can use udp_send.py.
  python ./udp_send.py

• Shutter is HTTP Request
  You can use this command.
  curl "http://esp32-camera.local:8080/take_picture"

Flash Light

ESP32-CAM by AI-Thinker have flash light on GPIO4.