Connect 2 mainbord (cerbot and spider)


How can i do to connect 2 mainboard like spider and cerbot.
To have communication between them.
Not Bluetooth or wifi.

Thank you.

Welcome to the forum.
Since you want to connect a Cerbot, I assume it needs to be wireless.

You could have a look here:

Or here is a good starting point for XBee:

The easiest way would be in using the null modem over serial ports.

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