Results 2 comments of NetBus

> Hi @wang5561207 ! Does it work in Arduino IDE? Sorry, I only use vscode because my development environment does not allow me to use Arduino ide

> Tested with Arduino IDE 1.8.15 with a BluePill F103C8 and it is OK. > > ![image](https://user-images.githubusercontent.com/20641798/128840965-d4f3706a-ea4e-4ad6-ac02-9b142611dc44.png) > > Check your wiring. Have you tested in platform IO??