Note: Most "generic" STM32F103 boards only have a reset button, and not a user / test button. So the bootloader code always configures the Button input pin as PullDown. Hence, if a button is not ...

Comparing ADC in Arduino and STM32F103C8 In Arduino board, it contains a 6 channel (8 channels on the Mini and Nano, 16 on the Mega), 10-bit ADC with an input voltage range of 0V–5V. This means that ...