I used to like HiLetgo but not anymore after ordering these "STM32” Blue Pills. You are using an STM32 clone. They don't even bother with the real MCU, although the description and name suggest it's STM32F103C8T6. The real MCU on the boards I received is CKS32F103C8T6. This is false advertising and that's why HiLetgo lost my business forever.
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