A1 and A2 are analog input channels on compatible telemetry receivers. A1 is most often used to report receiver voltage, and A2 pack voltage. A1 and A2 can report any value that can be represented as an analog voltage between … Continue reading

Global Variables

GV1 thru GV9: OpenTX provides Global Variables to store quantities for use in multiple functions without having to edit each function individually.  Global variables also can be linked to a slider or rotary knob to adjust variables in flight.