====== Protocol ======

Information provided here may change in future.

Packet size is always 32 (content is filled with random stuff if needed)

===== Header =====

^ Size ^ Content ^
|  1 | Source node id |
|  1 | Destination node id (0xFF -> broadcast) |
|  1 | Router node id (used to forward a packet) |
|  1 | Packet type |
|  2 | Packet counter |
|  26 | Data (See data description) |

===== Packet type =====

^ Value ^ Meaning ^
| 0x01 | Hello |
| 0x02 | Ping |
| 0x03 | Pong |
| 0x04 | Get value |
| 0x05 | Set value |
| 0x06 | Values |

===== Data content (Packet type: 0x01, Hello) =====

===== Data content (Packet type: 0x02, Ping) =====

===== Data content (Packet type: 0x03, Pong) =====

===== Data content (Packet type: 0x04, Get value) =====

The following data structure may be repeated several times in data until you reach the packet size or both device id equal 0xFF.\\

After sending this packet, you should receive one or more value packet (depending on the data size)

^ Size ^ Content ^
| 1 | Source device id (Warning: we talk about device here, not node) |
| 1 | Destination device id (Warning: we talk about device here, not node) |


===== Data content (Packet type: 0x05, Set values) =====

They are the same than VALUES packet except the packet type

===== Data content (Packet type: 0x06, Values) =====

The following data structure may be repeated several times in data.\\
** TODO: Add a marker to define data end **

^ Size ^ Content ^
| 1 | Source device id (Warning: we talk about device here, not node) |
| 1 | Destination device id (Warning: we talk about device here, not node) |
| 1 | Type (I: int16, S: string) |
| *2 | I: value int16 (Little endian) |
| *or 1+n | S: size (uint8) + n octets of string value |