The unit that you purchased has likely already been preprogrammed to blink when it is powered up (perhaps you’ve checked this already). This makes it easy to test that it is a working unit. There are a few other important details regarding power, reset, and LEDs that need to be discussed in this chapter. Finally, the use of the ST-Link V2 programmer and a device probe will be covered.
Power
The STM32F103C8T6 PCB, otherwise known as the “Blue Pill” board, has a number of connections, including a few for power. It is not necessary to use all of the power connections at once. In fact, it is best to ...
