The Ultimate Serial Port

"Your Debug Buddy"
from Mystic Engineering

Debug Buddy


Raspberry Pi Usage

The Raspberry Pi has a number of ways it can enter commands and output results. One of the easiest to use is a keyboard, mouse, and the HDMI output; however, if you are working on an embedded project that does not use all these devices, you can also log in on a serial console, as well as view the boot kernel messages.

The serial port settings for the terminal emulator are 115200/8N1, no handshaking.

Configure the Debug Buddy for 3.3V RS232 mode by removing both sets of jumper wires. Then connect the Pi to the Debug Buddy using three wires, as follows:

Pi Connections


Debug Buddy Raspberry Pi GPIO Connector
TXD J7 pin 1 RXD pin 10
RXD J7 pin 2 TXD pin 8
GND (any J2 pin or
the black test point loop)
GND pin 6

More info