This commit introduces several improvements to the SerialBridge helper:
- Adds support for the nRF52 platform by implementing the `setPins` configuration.
- Corrects the type cast for the RP2040 platform from `HardwareSerial` to `SerialUART`.
- Refactors packet deserialization to use a new `Packet::readFrom()` method instead of a direct `memcpy`, improving encapsulation.
- Updates the packet length validation to use the more appropriate `MAX_TRANS_UNIT` constant.
Implement a "seen packets" table to track packets that have already been processed by the serial bridge.
This prevents packets from being re-transmitted over the serial link if they have already been seen, and it stops inbound packets from serial from being re-injected into the mesh if they are duplicates.
Duplicate inbound packets are now freed to prevent memory leaks.
This commit refactors the serial bridge functionality out of the `simple_repeater` example and into a more reusable, object-oriented structure.
An `AbstractBridge` interface has been introduced, along with a concrete `SerialBridge` implementation. This encapsulates all the logic for packet framing, checksum calculation, and serial communication, cleaning up the main example file significantly.
The `simple_repeater` example now instantiates and uses the `SerialBridge` class, resulting in better separation of concerns and improved code organization.
João Brázio