Serial event fail when using 115200 as baudrate

Projects Programming
12

Whandall:
Your Pro Mini is a 3V variant running at 8 MHz?

Have a look at WormFood's AVR Baud Rate Calculator

As I have tried to show you in the first reply, 8MHz and 115200 does not work (generally).

AVR BaudRate.png
AVR BaudRate.png492×569 16.3 KB