Hardware Reference
In-Depth Information
This Arduino will now have the code to configure the interface. When you bring up Serial
Monitor , you should see something like the following screenshot:
This shows the configuration of the first device. If you receive 0 for all values, you prob-
ably have your device connected incorrectly. Initially, this first device will be in receive
mode, listening for a message, and when it receives one, it will send this message back to
the sender.
Now, do the exact same thing on the second Arduino. The code you have will run and will
also be waiting to send some information. On this second device, type the character T in
the input field at the top of Serial Monitor and then hit Send . Now, you should begin to
see the results on the send Serial Monitor , as shown in the following screenshot:
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