Mavlink code in python won't work properly when QGC is not running

[EliotBR (Eliot)]

Hi @Marios,

@EliotBR

Note … the various failsafes that are built in. MAVLink connections expect to receive a heartbeat message at least every second (if not received the communication may be stopped), and when you’re controlling the vehicle it’s subject to the heartbeat failsafe , and rc override commands are subject to the pilot input failsafe and to RC_OVERRIDE_TIME .

Our documentation is currently in a transition to a new system, with some revisions while transferring. The revised Pymavlink docs should make this kind of thing more obvious, but the general ArduSub and BlueOS documentation are higher priority so are being completed first.