Here is my situation.
I'm through a serial connection getting updates from a gps module and autopilot controller. the string comes as the following:
+++ASP:273,THH:0,RLL:0,PCH:0,***
+++ASP:37,THH:0,RLL:60,PCH:2,***
+++ASP:27,THH:0,RLL:60,PCH:0,***
+++ASP:19,THH:0,RLL:60,PCH:0,***...