FrSky Receiver Upgrade Lite FUL-1 USB/Serial Lead Interface

The FUL-1 is a converter that allows you to upgrade the firmware of the FrSKY telemetry DFT/DJT/DHT V1 transmitter modules and also the original D8R V1 receiver to provide the following additional features:

•  Four different tones corresponding to four alarm sources
•  Improve the smoothness of servos when working with D8R
•  Provide two PPM modes: HS (9ms) if using high speed digital servos and FS (18ms) if using analogue servos.

This adapter is NOT needed to update the firmware on the D8R-II or the D8RII-Plus.

This adapter may also be used as a level converter for modified 9X radio installs with the FrSky system.

It also has an application for ArduPilot / Pixhawk users; it can be used in conjunction with the Frsky SPC to provide telemetry data to X-series receivers so that you can view information such as flight modes, battery level, and error messages, as well as information from additional FrSky sensors on the FrSky Taranis, Turnigy 9XR Pro, and other FrSky compatible RC transmitters. Compared to a MAVLink radio link, the FrSky telemetry link has practically no delay. More info here on ardupilot.org.