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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
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== Summary ==<br />
The Open405R-C is a development board for the STM32F405R series, featuring an STM32F405RGT6 MCU. It provides standard interfaces to simplify peripheral expansion.<br />
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== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/8382 8382 – Open405R-C Package A, STM32F4 Development Board]<br />
* [https://shop.jw-tech.eu/p/8881 8881 – Open405R-C Standard, STM32F4 Development Board]<br />
* [https://shop.jw-tech.eu/p/WSAL8382 WSAL8382 – Open405R-C Package A, STM32F4 Development Board]<br />
* [https://shop.jw-tech.eu/p/WSAL8881 WSAL8881 – Open405R-C Standard, STM32F4 Development Board]<br />
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== Technical overview ==<br />
* The on-board microcontroller is the STM32F405RGT6 from the STM32F405R family.<br />
* The board targets developers who want to add peripherals through its available standard interfaces.<br />
* A user manual and schematics are provided as technical documentation for the board.<br />
* Demo code is available for touch LCDs, including the 2.8-inch resistive touch LCD and GT911-based capacitive touch LCDs (7-inch and 4.3-inch).<br />
* Additional resources include IAP source code (USART and ETH), ST libraries, and a Keil device package.<br />
* Official datasheet documentation covers the STM32F405/407, F427/429, and F437/439 variants plus the reference manual.<br />
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== Notes and version constraints ==<br />
* Board programming is only supported via a JTAG/SWD programmer; direct USB programming with STM32CubeProgrammer without an ST-Link is not supported according to the source.<br />
* If the 2.8-inch resistive touch LCD does not display after flashing, the source recommends using the latest sample program for that display.<br />
* For GT911 capacitive touch LCDs, use the matching routines based on display size (7-inch or 4.3-inch).<br />
* Technical support is available weekdays 9 AM – 6 PM GMT+8; tickets are typically handled within 1–2 working days.<br />
* Some resources (e.g., libraries and source code) are provided as archive files; their version compatibility should be verified before use.<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/Open405R-C Open405R-C - Waveshare Wiki]<br />
* Source revision: 89127<br />
* Captured: 2026-08-29T09:17:09+00:00<br />
* SHA-256: <code>0f35db926c7b1092914fb38dd32713133e626c87148f1f7c33d7abbac6acd25d</code></div>JWTechPublisher