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  • 2020-10-15 01:03:11

    Nice cost effective development board for learning ARM processor. Paired this with the Geekcreit 3.5 Inch TFT Color Display Screen Module. Initially had problem flashing using USB/FTDI Slab. Found R3 on Boot 0 wrong value; IS: 100K, SB 10K resistor. Replaced resistor on module board (underside). Works perfect. Reflashed the standard ST bootloader using the STM32Cube app and now am able to flash code updates on the fly without having to switching the Boot 0 jumper. Overall, a very nice board

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  • pca9306
    JP
    2020-09-06 05:20:19

    Good quality blue pill. has STM32 marking

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  • 2020-09-07 00:43:38

    This is an ARM Cortex M3 board ("blue pill") running at 72Mhz with 64k flash and 20k SRAM. This is a good low cost general purpose MCU. The board form factor is roughly the same as an Arduino nano. The chip has better performance than a nano 328p, but programming it is clumsier. I recommend using a STLINK adaptor for programming. The ST datasheet can be found at: https://www.st.com/en/microcontrollers-microprocessors/stm32f103c8.html

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  • Eddie
    ZA
    2020-10-22 13:55:26

    Finally a board with the correct pullup resistor and the USB actually works!

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  • Elbeto
    NZ
    2020-10-16 22:59:55

    Goods as described.

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  • 2020-10-15 02:36:05

    Excellent Services.

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  • 2020-10-14 05:01:00

    as described

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  • 2020-09-25 03:39:08

    All is OK

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  • ppwt
    US
    2020-09-03 21:58:45

    Excelletn

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  • 2020-07-22 21:05:51

    It works well.

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