This page will contain links to my projects and tutorials involving the STM32 "Blue Pill"
Let us start off by providing a diagram of the pin functions on this extremely useful little board.
Getting Started with your "Blue Pill"
Programming the "Blue Pill" with Arduino IDE - Using External USB to UART
Enabling the Native USB port - Not all boards need this but verify yours using this tutorial
SPI between STM32 "Blue Pill" and Maker Nano - Part 2 of SPI series