Take a picture and Publish it via SMTP.
MIT License
Take a picture and Publish it via SMTP. This project use ESP32 Camera Driver.
ESP32 development board with OV2640 camera. If you use other camera, edit sdkconfig.default. From the left:
ESP-IDF V5.0 or later. ESP-IDF V4.4 release branch reached EOL in July 2024.
For AiThinker ESP32-CAM, you need to use a USB-TTL converter and connect GPIO0 to GND.
ESP-32 | USB-TTL |
---|---|
U0TXD | RXD |
U0RXD | TXD |
GPIO0 | GND |
5V | 5V |
GND | GND |
git clone https://github.com/nopnop2002/esp-idf-smtp-camera
cd esp-idf-smtp-camera
chmod 777 getpem.sh
./getpem.sh
idf.py set-target {esp32/esp32s3}
idf.py menuconfig
idf.py flash monitor
For AiThinker ESP32-CAM, Change GPIO0 to open and press the RESET button.
Set the following items using menuconfig.
You can connect using the mDNS hostname instead of the IP address.
You can use static IP.
I've only tested with a Gmail account. If you want to use a non-gmail account, you need to change gmail_root_cert.pem according to this instruction.
Note about Gmail: To help keep your account secure, from May 30, 2022, Google no longer supports the use of third-party apps or devices which ask you to sign in to your Google Account using only your username and password. Due to this change, you can no longer log in to Google from ESP-IDF using only your username and password. You will need to generate a special app password as described here. An app password is a 16-character code generated by your device. Use this code as your password.
You can select the file name to write to the shared folder from the following.
20210520-165740_800x600.jpg
Large frame sizes take longer to take a picture.
You can choose one of the following shutter methods
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.
GPIO | PullDown | PullUp |
---|---|---|
GPIO12 | OK | NG |
GPIO13 | OK | OK |
GPIO14 | OK | OK |
GPIO15 | OK | OK |
GPIO16 | NG | NG |
python3 ./tcp_send.py
python3 ./udp_send.py
Shutter is a MQTT Publish
You can use mosquitto_pub as shutter.
mosquitto_pub -h broker.emqx.io -t "/take/picture" -m "hello world"
MQTT broker is specified by one of the following.
192.168.10.20
mqtt-broker.local
broker.emqx.io
Specifies the username and password if the server requires a password when connecting.
ESP32-CAM by AI-Thinker have flash light on GPIO4.
When you use ESP32S3-WROVER CAM, you need to set the PSRAM type.