sleep) and ease of use in point-to-point or broadcast networks. Unlike Bluetooth, it natively broadcasts to all nodes on the same channel and ID, making it ideal for simple telemetry and "one-to-many" communication. Core Specifications
This seemingly trivial code is all you need. Type a message into the Serial Monitor of the first Arduino; it will appear instantly on the second Arduino’s Serial Monitor. The two modules act as a virtual cable, seamlessly forwarding any serial data in both directions. jdy40 arduino example best