WeAct STM32H743 is a small MCU development board powered by a 480 MHz STMicro STM32H743VIT6 Cortex-M7 microcontroller and equipped with a small LCD and a camera connector taking OV2640, OV5640-AF, OV7670, or OV7725 camera sensors.
The board comes with 2048KB flash and 1MB RAM built into the STM32H7 microcontroller, 8MB SPI flash, 8MB QSPI flash, a microSD for data storage, USB-C port for power and programming, a few buttons, and plenty of I/Os accessible through two 44-pin headers.
WeAct STM32H743 specifications:
- MCU – STMicro STM32H743VIT6 Arm Cortex-M7 microcontroller at 480MHz with FPU, DSP, and MPU, 2048KB flash, 1MB RAM
- Storage – 8MB SPI Flash, 8MB QSPI Flash (bootable), microSD card socket
- Display – 0.96-inch TFT LCD based on ST7735 SPI display driver
- Camera
- 8-bit Digital Camera Interface (DCMI) with autofocus support
- OV2640 (1600×1200), OV5640-AF (2592×1944 with autofocus), OV7670 (640×480), or OV7725 (640×480) camera sensors are supported
- USB – 1x USB-C for power and programming
- Debugging – 4-pin SWD header
- Expansion – 2x 44-pin 2.54mm pitch headers
- Misc
- BOOT0 key, NRST key, user key (PC13)
- Blue power LED
- Power Supply
- 5V input via USB-C port
- 3.3V to 5.5V input via pin header
- SY8088AAC step down DC/DC regulator IC up to 1A
- Dimensions – 66.88 x 40.64 mm
While I found the WeAct STM32H743 in a new arrivals feed on Aliexpress, the relevant GitHub repository has commits from 3 to 4 years ago (one a few from last year)with PDF schematics, datasheets for components and camera modules, a C SDK with various samples, and support for the OpenMV 4.4.1 open-source machine vision project. WeAct Studio also says they haven’t released the factory test firmware, as some other companies do, to prevent duplicates with lower quality… As we noted in a recent article about the WeAct STM32G4 board, there’s no easy getting-started guide or pinout diagram, so it may require some efforts and/or knowledge to get the board working.
The WeAct STM32H743 board can be purchased on Aliexpress for $13.96 including shipping with GPIO and SWD headers, but without a camera. Bundles with cameras (OV7725, OV2640, or OV7725 M12 ) can be had for $16.26 to $20.48. I could not find any kits with the OV5640-AF and OV7670 camera sensors, but it’s quite possible the WeAct board is compatible with the OV5640-AF camera module that works with the official OpenMV camera boards.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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