Beginner stm32 olimexino. blynk problem

[maxgerhardt]

NUCLEO-G431 hal initialization

You’re forgetting to implement the SysTick_Handler interrupt in which you must increment the HAL tick. Without that, HAL_Delay() will delay forever… Don’t forget to use extern "C" void SysTick_Handler(void) { HAL_IncTick(); } if you’re implementing this in a C++ file instead of a C file.