Noob here.. UART 2.1 and Arduino Uno - Serial Garbage on Example Sketch

[jimmyw91]

Hello,

Thank you for taking a moment to try and help me out, any feedback is appreciated.

I am trying to make use of my UART 2.1 adapter. I started by downloading the libraries from github and attempting to run the example sketches. I uploaded the sketches and did not have luck with any of them. The two examples that included serial data I see garbage in the serial monitor. I have included a photo so you can see how I have it set up, what sketch is running and what the serial monitor spits out:
https://imgur.com/83dGK5d

This is the wiring to the Arduino, nothing special to see here (unless I did something extra dumb...). I get the same garbage output whether the obd2 adapter is connected to my car or not.
https://imgur.com/5gMnkLz

[stanley]

Do you know Arduino UNO's Serial and serial monitor are one thing? The adapter uses Serial and that means you should either not use USB monitor or use a Arduino Mega.