Amazon.com: [initeq] STM32 ARM STM32F103C8T6 Blue Pill Minimum System Development Board with ST-Link V2 USB Programmer (2-Pack + ST-Link V2) : Electronics
Blue Pill Vs Black Pill: Transitioning From STM32F103 To STM32F411 | Hackaday
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STM32 SD Card Interfacing with Example -STM32F103C8T6 board
stm32f1xx [CuVoodoo]
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Getting started with STM32 and things you need to be aware of – E-Tinkers
STM32 blue pill in run normal mode – Renzo Mischianti
STM32 SD Card Interfacing with Example -STM32F103C8T6 board