This is an open-source motion detection camera project based on the ESP32-CAM module. It provides powerful monitoring capabilities at a low cost, making it an ideal choice for DIY enthusiasts and smart home builders. This article will detail the features, functions, and usage of this project.
Main Features
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• Motion Detection: The core function detects motion by comparing pixel differences between consecutive images. Users can customize sensitivity to reduce false alarms. The motion detection algorithm is based on image segmentation, dividing the image into multiple blocks and comparing the average brightness changes of each block to improve accuracy.
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• Image Capture and Storage: It can capture static images and store them in the internal flash memory (SPIFFS) of the ESP32-CAM or an external SD card. Users can adjust image resolution and storage methods as needed.
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• Remote Access: Through WiFi connection, users can access the camera using a browser to view live image streams, check saved images, configure parameters, and perform firmware updates.
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• Email/FTP Sending Alarm Images: When motion is detected, the camera can be configured to send images via email or FTP to a designated server, allowing timely receipt of alarm information.
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• OTA (Over-the-Air) Updates: Supports OTA functionality, making it easy for users to update the program to the latest version, enhancing security. A password is required for protection.
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• Custom Settings: Provides a rich set of parameter settings options, such as motion detection sensitivity, image quality, email/FTP server settings, etc., allowing users to adjust according to actual conditions.
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• Web Interface: A user-friendly web interface for easy configuration and monitoring. It provides multiple URL interfaces, such as
/ping,/log,/reboot,/images,/stream, facilitating various operations. -
• Image Masking Function: Allows users to select which areas of the image to use for motion detection on the interface, thereby reducing unnecessary triggers.
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• Low Light Performance Enhancement: The project recommends improving the camera’s performance under low light conditions by changing the lens and provides corresponding lens adapter design files.
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Hardware Requirements
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• ESP32-CAM module (recommended version with PSRAM)
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• (Optional) Micro SD card for expanded storage
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• (Optional) External WiFi antenna for improved WiFi signal stability
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• 5V power supply, at least 500mA, and it is recommended to add a filter capacitor to ensure stable power supply
Software Requirements
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• Arduino IDE
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• ESP32 development board support package
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• Necessary Arduino library files (ESP32_mail_client, ESP_wifimanager, Time)
Installation and Configuration
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1. Install Arduino IDE and the ESP32 development board support package.
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2. Download the CameraWifiMotion project code.
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3. Install the necessary Arduino library files.
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4. Upload the code to the ESP32-CAM module.
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5. Access the camera’s IP address through the browser (the first run will create a hotspot), configure WiFi connection parameters and other settings.
Usage Tips and Precautions
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• Power stability is very important; otherwise, it may cause the camera to become unstable or even damaged.
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• WiFi signal strength is greatly affected by the surrounding environment; it is recommended to use an external antenna.
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• Motion detection sensitivity needs to be adjusted according to actual conditions to avoid false alarms.
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• Using email or FTP functions requires configuring the corresponding account information.
Conclusion
CameraWifiMotion is a powerful open-source ESP32-CAM motion detection camera project that is easy to use and offers a wealth of features and customization options. Although the code of the project itself is somewhat simplistic, its functionality is already very strong. For hands-on enthusiasts, it is a good choice that can be improved and expanded according to their needs.
Project address: https://github.com/alanesq/CameraWifiMotion