Arduino IDE

https://www.arduino.cc/en/software

BluePill board Support packege for Arduino IDE

http://dan.drown.org/stm32duino/package_STM32duino_index.json

STMicroelectronic Cube IDE

https://www.st.com/en/development-tools/stm32cubeide.html

Logic Analyzer

https://www.saleae.com/pages/downloads