Battery voltage sensor without external hardware

[igor.vereninov]

If your trasmitter is a Taranis, this will be very helpful:

MavLink to FrSky SmartPort Converter

Hey At Airborne Projects we have developed a APM MavLink to FrSky SmartPort Converter based on the Arduino Nano, designed and tested with the Navio in mind, allowing for connection through the USB port of the Raspberry PI. We initially designed it for ourselves because the alternative, as also mentioned on this forum Telemetry to FrSky receiver was a Teensy, which not only is not open source friendly but is also very expensive. Our project features full compatibility with typical RC voltages(…