Unit Camera
Description
Unit Camera is a high-cost-performance WiFi camera from M5Stack, featuring the ESP32-WROOM-32E control core and a 2-megapixel image sensor (OV2640). Its minimalist design includes no unnecessary peripherals. The pre-installed software integrates image transmission firmware, offering interfaces for image data acquisition and adjustment of image parameters such as white balance, exposure, gain, and size. Users can directly obtain image data and interact with the camera via UART or WiFi. It supports UIFlow graphical programming, allowing for a zero-development, out-of-the-box user experience. Additionally, the reserved program download interface enables users to easily update or customize the firmware, enhancing functionality and performance. The camera also comes with a mounting clip, making it easy to fix in the desired position. Its compact design and high cost-performance make it suitable for various wireless camera application scenarios.
Features
- ESP32 control core
- Simplified design
- 2 MegaPixel camera (OV2640)
- UART communication (supports image data acquisition and image parameter adjustments)
- WiFi image transmission
- Programmable LED indicator (blue)
- Programming platforms: ESP-IDF / Arduino / UIFlow
Includes
- 1x Unit Camera
- 1x Grove Cable
- 1x camera back clip (compatible with LEGO)
Applications
- Home Security
- Smart Home
- Industrial Monitoring
- Agricultural Monitoring
- Education and Research
- Pet Monitoring
Specifications
| Resources | Parameters |
|---|---|
| ESP32-WROOM-32E | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi |
| Flash | 4MB |
| Camera | Focal length 4.8±5% mm Aperture 2.4±5% Lens type 1/4 inch Field of view 65° Pixels 2M Sensitivity <1% Image sensor OV2640 |
| Support output format | YUV (422/420)/YCbCr422, 8-bit compressed data, RGB565/555, 8-/10-bit Raw RGB data |
| DFOV | 65° |
| Product Size | 40*24*11m |
| Package Size | 136*92*13mm |
| Product Weight | 10.6g |
| Package Weight | 15.7g |
Flash Burning Download
Unit CAM does not include a program download circuit. When the user needs to download the ESP32 update program, the program can be burned through an external connection with a USB-TTL downloader. Click here to buy ESP32 download board
Pin Mapping
OV2640 Interface
| interface | camera pins | unit Camera |
|---|---|---|
| SCCB Clock | SIOC | IO23 |
| SCCB Data | SIOD | IO25 |
| System Clock | XCLK | IO27 |
| Vertical Sync | VSYNC | IO22 |
| Horizontal Reference | HREF | IO26 |
| Pixel Clock | PCLK | IO21 |
| Pixel Data Bit 0 | D0 | IO32 |
| Pixel Data Bit 1 | D1 | IO35 |
| Pixel Data Bit 2 | D2 | IO34 |
| Pixel Data Bit 3 | D3 | IO5 |
| Pixel Data Bit 4 | D4 | IO39 |
| Pixel Data Bit 5 | D5 | IO18 |
| Pixel Data Bit 6 | D6 | IO36 |
| Pixel Data Bit 7 | D7 | IO19 |
| Camera Reset | RESET | IO15 |
| Camera Power Down | PWDN | -1 |
| Power Supply 3.3V | 3V3 | 3V3 |
| Ground | GND | GND |
HY2.0-4P Interface.
| HY2.0-4P | Unit Camera |
|---|---|
| RX | IO16 |
| TX | IO17 |
| 5V | 5V |
| GND | GND |
LED (Blue)
| LED | Unit Camera |
|---|---|
| D1 | IO4 |
Related Link
Schematic
Model Size
Example
UIFlow
Arduino
ESP IDF
idf.py menuconfig
Component config->ESP32-specific->Hardware brownout detect & reset（disable）
Version comparison
| Product | SKU | Camera | Appearance |
|---|---|---|---|
| Unit Camera | U109-B | Regular viewing angle FOV: 65° OV2640 | Includes case and camera back clip |
| Unit CAM | U109 | Regular viewing angle FOV: 65° OV2640 | Does not include case |
| Unit Camera DIY KIT | U109-X | Regular viewing angle FOV: 65°, OV2640 Wide-angle fisheye FOV: 160°, OV2640 | Includes case and camera back clip |