Please check the chapter of Protocol (Page 20) in this guide to test more commands.
3.The 2nd UART
Sometimes the 2
nd
UART is important for our project, for example you want another
Arduino to communicate with uArm.
During the design, we have had it in mind. There is the 2
nd
UART in the 30P base
extension.
All the pins of extension board are connected with the Arduino MEGA 2560 directly so
it’s TTL level. And voltage above 5V might burn the IO out.
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