Lightweight datalink-layer agnostic protocol.
The tiny address protocol uses (you guessed it) a tiny addressing scheme. It has a standard message-type range and a customizable mission-specific message type range.
Simple wired protocol, especially useful for underwater ROVs.
Also very helpful for internal communication! :O
Long-Range, low-power, low-datarate and highly-reliable radio communication.
My personal favourite :3
Technically great, practically unreliable. Up to 1Mb/s bitrate radio communication with acceptable range.
The source of many a headache. :'(
The original project maintained by CrashLogger.
Variant with custom messages for Urpekari missions and vehicles.