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  • 07/06/2016

    Basically a breakout board for the processor. Includes USB connection (2x 22Ohm resistors in series with D+ and D- and a D+ pull up resistor connected through jumper P2). All pins nicely labeled. Includes 8MHz and 32kHz cystals, power LED and 20 pin JTAG connector. Boot 0 and 1 pins brought out to 2.4mm pin header for boot mode selection. Serial connections have their own 4pin header with GND and 5V. Nothing else. A good point is V_BAT is brought out to pin header as well. Schematics can be found if you search by "lctech-stm32-devboard-scheme", but the only thing that needs explanation is jumper P2. The bad part: Soldering of SMD components is just passable We have come to expect better even from China. Soldering of through hole components is not very good. Pin headers are on crooked. Some people may prefer pin headers soldered at the other side. Banggood hear us: Please offer this product with pin headers left off! Overall, a good product which will benefit from better through hole soldering, or better, pin headers completely left off.

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  • 19/05/2015

    Great board for the best price. The Cortex-M3 CPU is great, very powerful and the chip has tons of periphery. I like the fact the board has the RTC xtal mounted. Great open source support - libopencm3 + GNU ARM toolchain + Eclipse. + OpenOCD.

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  • 31/05/2019

    ARM Cortex board purchased for some experiments. not yet tested, only powered with the USB cable. the board quality is good, but the microprocessor look scratched and with the label and printing misaligned, so it could be not really genuine. I will check as soon as possible. Scheda ARM Cortex acquistata per alcuni esperimenti. non ancora testato, alimentato solo con il cavo USB. la qualità della scheda è buona, ma il microprocessore sembra graffiato e con etichetta e stampa disallineate, quindi potrebbe non essere veramente genuino. Controllerò il prima possibile.

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  • 25/11/2014

    I have seen it listed on other sites but not a this this price. I connected it to J-link JTAG,USB power , Open KEIL, compile test project and it worked. Just as I was expecting.

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  • 12/06/2016

    Zum Download über TX RX die Bootjumper *- BOOT0 -* BOOT1 so stecken. Nutze dafür den CH340 in NANO (Achtung Widerstände anpassen sonst langen die Pegel nicht und RESET jumpern) Es gibt nun auch noch eine schmälere Version.

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  • 28/09/2016

    con este tengo problemas ya que necesia de otro modulo para programarlo y este modulo es caro asi que creo que no lo comprare, estoy desilusionado con esto

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  • 10/03/2016

    A lot free utilities are available for this MCU. There is no pre-flashed bootloader but the price of ST-LINK here is very good. With both of them for less than 10$ you can do a lot of project.

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  • 03/01/2016

    Tested with some small project with GNU ARM compiler and Open CMSIS library. Very good results. Thanks for good product.

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  • 17/04/2014

    Perfect small board to start with STM32 development, well constructed and has everything required...

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