Unboxing $1 STM32 Microcontroller from Aliexpress
This is one of the cheapest 32 bit microcontroller. I bought STM32F103C8T6 microcontroller from aliexpess for $1.69 only.
STM32 is a family of 32-bit microcontroller integrated circuits by STMicroelectronics. The STM32 F1-series was the first group of STM32 microcontrollers based on the ARM Cortex-M3 core
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