STMicroelectronics STM32F4DIS-CAM

Overview

STM32F4DIS-CAM from STMicroelectronics is a dedicated camera expansion board for the STM32F4 Discovery kit, integrating a 1.3-megapixel CMOS image sensor with support for still capture and VGA (640×480) video at up to 30 fps. It connects via the STM32F4DIS-EXT base board and interfaces directly to the STM32F407VG MCU using parallel DVP (Digital Video Port) signals and control lines including I²C for sensor configuration.

For engineers reviewing the STM32F4DIS-CAM datasheet, STM32F4DIS-CAM pinout, STM32F4DIS-CAM application, or STM32F4DIS-CAM equivalent, key considerations include its DVP interface timing compatibility with STM32F4 FSMC/DMA controllers, 1.8 V/3.3 V I/O voltage tolerance, and integration requirements with the STM32F4DIS-EXT base board's camera connector (CN3).

Technical Context

The STM32F4DIS-CAM implements a fixed-function imaging subsystem centered on an OV9655-compatible 1.3 MP CMOS sensor (confirmed via ST application note AN4281 and board schematic). It delivers raw YUV or RGB565 data over an 8-bit or 12-bit parallel DVP bus synchronized to HSYNC/VSYNC and PCLK, with I²C-based register access for exposure, gain, and format control.

No onboard image processing is performed; all frame buffering, DMA transfer, and JPEG encoding (if used) are handled by the host STM32F407VG MCU. Power is supplied via the base board's 3.3 V rail, with dedicated LDO regulation for the sensor core and analog blocks.

Key Specifications

Availability

STM32F4DIS-CAM is available at Aetrix Electronics and suitable for embedded vision prototyping, industrial machine vision evaluation, and educational IoT camera development requiring stable component supply and documented STM32F4 hardware integration.

Supply support for STM32F4DIS-CAM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, sensors, power ICs, and analog devices for industrial, automotive, and consumer applications.

The STM32F4DIS-CAM belongs to ST's STM32 Discovery ecosystem expansion series, engineered specifically to accelerate proof-of-concept development for real-time image acquisition on Cortex-M4 MCUs with integrated FSMC and high-speed DMA.

FAQ

Does STM32F4DIS-CAM support JPEG compression onboard?

No. The board provides raw pixel data only (YUV/RGB565/Bayer) via the DVP interface. JPEG encoding must be implemented in firmware on the host STM32F4 MCU using its DSP instructions and memory resources, as demonstrated in ST's X-CUBE-VISUAL package and application note AN4281.

What is the required host MCU configuration to capture images from STM32F4DIS-CAM?

The host must be an STM32F407VG (or compatible) with FSMC configured in SRAM mode for DVP data capture, two DMA channels (one for PCLK-synchronized data, one for VSYNC-triggered frame buffering), and an I²C peripheral for sensor initialization. External SDRAM is recommended for multi-frame storage.

Is STM32F4DIS-CAM compatible with STM32F429 or STM32F469 Discovery kits?

No. It is mechanically and electrically designed exclusively for use with the STM32F4DISCOVERY kit and STM32F4DIS-EXT base board (order code STM32F4DIS-BB). Pinout, power routing, and DVP signal timing assume the original F407VG reference design and cannot be directly adapted to other Discovery boards.

Can STM32F4DIS-CAM operate independently without the STM32F4DIS-EXT base board?

No. It lacks voltage regulation, clock generation, and interface translation circuitry. It requires the STM32F4DIS-EXT base board to provide regulated 3.3 V power, I²C level-shifting, DVP signal conditioning, and physical mounting alignment with the Discovery kit's expansion headers.