I am working on stm32f407vg as the mcu for my mobile robot. I use encoder and limit switch sensors and supply it by 5v from lipo battery (through 5A step down converter). stm32 keep overheating the longer i use it. Is it because i supply the sensors ...

I have stm32f407vgt6 from devebox. At first, I wanted to do led blink and it worked fine when I supplied it with external power via 5V pins. Then, when I tried to use UART pin (PA_9, PA_10) to print something to USB to TTL module, it did nothing. UAR...