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— Edited
The most recent version of the EZ-B v4 firmware now includes 2 high speed UART ports instead of 1. The ports can work up to 3,750,000 bits/sec. The standard UART Expansion Port has 10,000 Byte Buffer. The new Port uses 2 Dx pins and has a 4,000 Byte Buffer.
You're welcome
You can connect many things to the two UARTs for two way communication - including the Roomba, GPS, and a lot more
One more question. If I understand this right then ARC can receive serial communication back from the unit it's operating. If this is in the form of text (like an error message) will it show up in the ARC of the control or script text window I'm using or will I still need to use a terminal program?
Also, there is an example for the Uart in the examples folder. You can search for keywords in folders when opening a project.
For example, you can check how many bytes are available in the input buffer. Then you can read those bytes to a variable.