SKU: IOWC-1821
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M5Stack Unit CamS3 Wi-Fi Camera (OV2640)

₹1,639.00 (Inclusive of all taxes)
Out of Stock

The M5Stack Unit CamS3 is a compact ESP32-based Wi-Fi camera module featuring an OV2640 2MP sensor, designed for zero-development image capture and transmission via UART or Wi-Fi, compatible with Arduino, ESP-IDF, and UIFlow.

Features

  • ESP32-WROOM-32E core provides robust Wi-Fi connectivity and processing power for embedded vision tasks.
  • 2MP OV2640 image sensor delivers 12fps video streaming with support for YUV, RGB, and RAW data output formats.
  • Pre-loaded firmware enables out-of-the-box image acquisition and parameter adjustment via UART (115200bps) or Wi-Fi.
  • UIFlow, Arduino, and ESP-IDF programming support allows for rapid prototyping and integration without deep firmware development.
  • Ultra-compact 45x20x12mm form factor is ideal for space-constrained wireless monitoring and smart device applications.

Out of stock

Description

The M5Stack Unit CamS3 integrates an ESP32-WROOM-32E microcontroller with a 2-megapixel OV2640 CMOS sensor to create a streamlined, cost-effective wireless camera solution. Its simplified hardware design focuses on core functionality, providing a direct interface for image data capture and transmission over Wi-Fi or serial UART. The module comes pre-flashed with image transmission firmware, offering immediate access to live video feeds and camera controls like white balance, exposure, and gain adjustment.

With a default frame rate of 12fps and a 66.5° diagonal field of view, the Unit CamS3 is engineered for low-latency remote monitoring and vision-based IoT applications. Its compatibility with popular development frameworks including ESP-IDF, Arduino IDE, and the graphical UIFlow platform enables rapid deployment in smart home automation, security systems, and educational projects without requiring extensive embedded programming expertise.

Key Features

  • ESP32-WROOM-32E microcontroller provides dual-core processing and integrated 2.4GHz Wi-Fi for wireless image streaming.
  • 2-megapixel OV2640 sensor supports multiple output formats including YUV422, RGB565, and RAW data for flexible image processing.
  • Factory-loaded firmware delivers plug-and-play functionality for UART-based image data acquisition and parameter control.
  • Compact, peripheral-free PCB design minimizes footprint and power consumption for embedded vision applications.
  • Seamless integration with M5Stack's UIFlow graphical programming environment for zero-code development.
  • Direct Wi-Fi image transmission capability enables standalone remote monitoring and surveillance setups.
  • Wide 66.5° field of view captures sufficient scene detail for general-purpose monitoring and object detection.

Applications

  • Wireless remote monitoring and security camera systems for home or office automation.
  • Embedded vision for IoT projects requiring live video feeds over Wi-Fi, such as pet monitors or baby cams.
  • Educational tool for learning computer vision, wireless communication, and IoT prototyping with Arduino/UIFlow.
  • Smart device accessory for adding camera functionality to robots, drones, or interactive installations.
  • Low-cost visual sensor node for distributed sensing networks and industrial telemetry applications.

Technical Specifications

Microcontroller/SoCESP32-WROOM-32E (Dual-core Xtensa LX6, 240MHz)
Wireless Protocol2.4GHz Wi-Fi (802.11 b/g/n)
Image SensorOV2640 CMOS
Maximum Resolution2 Megapixels (1600x1200)
Default Frame Rate12 fps
Field of View (DFOV)66.5°
Data InterfaceUART (115200bps, 8N1)
Flash Memory4 MB
Output FormatsYUV422/420, YCbCr422, RGB565/555, 8/10-bit Raw RGB
Programming SupportESP-IDF, Arduino IDE, UIFlow
Dimensions45 x 20 x 12 mm
Weight4.7 g

Frequently Asked Questions

How do I power and establish communication with the Unit CamS3?

The Unit CamS3 is powered via its 5V and GND pins. For initial setup, connect the module's UART_TX and UART_RX pins to a USB-UART adapter or development board's serial pins. The default baud rate is 115200bps with 8 data bits, no parity, and 1 stop bit (8N1). Use a serial terminal to send AT-style commands for image capture, parameter adjustment, or to query the module's status. For Wi-Fi operation, configure the SSID and password via UART commands to enable wireless image streaming to a specified IP address.

Can I reprogram the ESP32 on the Unit CamS3 with my own firmware?

Yes, the ESP32-WROOM-32E core is fully programmable. You can develop custom firmware using the ESP-IDF framework, Arduino IDE with the ESP32 board package, or PlatformIO. To flash new code, connect the module's GPIO0 to GND to enter bootloader mode, then use a USB-to-serial programmer connected to the UART pins and the EN/RST signals. The 4MB flash provides ample space for your application. The pre-installed image transmission firmware can be overwritten, but the original functionality is also accessible as a library example in the M5Stack GitHub repositories.

What image formats and resolutions does the OV2640 sensor support?

The OV2640 sensor on the Unit CamS3 supports a maximum resolution of 2 megapixels (1600x1200). It outputs data in several formats including YUV (422/420), YCbCr422, RGB565, RGB555, and 8- or 10-bit RAW RGB data. The default firmware streams in a compressed JPEG format over Wi-Fi or UART. You can adjust the output resolution and format via UART commands to balance image quality and bandwidth usage. The sensor's attributes like exposure, gain, and white balance are also programmable through the provided command interface for optimal image capture in varying lighting conditions.

How do I use the Unit CamS3 with M5Stack's UIFlow graphical programming?

To use the Unit CamS3 with UIFlow, ensure your M5Stack Core device (like Core2 or Basic) is running the latest UIFlow firmware. Connect the Unit CamS3 to the Core device's GROVE port or via its UART pins. In the UIFlow web IDE, drag and drop the 'Camera' blocks from the Unit category. These blocks allow you to initialize the camera, capture images, adjust parameters, and display the stream on the screen or transmit it over Wi-Fi without writing any code. Refer to M5Stack's official documentation for specific wiring diagrams and block examples.

Package Includes

  • 1 x M5Stack Unit CamS3 Wi-Fi Camera (OV2640)

Additional Information

Weight 0.0047 kg
Dimensions 2 × 4.5 × 1.2 cm