As discussed in previous posts comparing the 32F103 microcontrollers, there are several I²C issues on the MegaHunt MH32F103. Disclaimer: The parts are assumed to be MegaHunt MH32F103. I have been told the “STM32F103 China” Blue Pills from AliExpress contain a MegaHunt MH32F103. As these parts have been relabelled as STM parts, I cannot tell for…