# 115200 **115200** is the default baud rate for [[arduino|Arduino]] USB-UART communication. ## picocom You specify the baudrate using `-b` option. ``` $ picocom /dev/ttyACM0 -b 115200 ``` To exit picocom, use `Ctrl + A, X`. This means holding control and pressing 'A' and 'X'. Don't release control while switching from 'A' to 'X'.