flysky clone 9x receiver with 3DR radio

[willumpie82]

Hi guys!

I';m flying a crius AIOP v1 with MPNG2.9R6 (Ardupilot clone) and flysky 9x

I recently modded my flysky 9x :P I wanted to have telemetry info on my TX.

I started with a frsky two-way kit, modified my 9x to have a serial port, and flashed er9x firmware with frsky option
that wasn';t such a success, I got data, nice battery voltage readout etc but no Mavlink status information.

so i bought a 3dr radio 433Mhz kit from ebay and after waiting very long to receive it, it was there, a module for the plane and an usb stick like module. it was plug and play for the computer, i was able to communicate trough mission-planner etc.
but when flying i don';t want to carry my notebook with MPlanner.

I removed the usb parts (connector and ftdi chip) soldered some wires to the serial port from the module and connected it to the place previously my frsky was connected. I flashed er9x with Ardupilot option. no luck, no data it seemed the er9x has an very old version of the Mavlink stack. eventually i came across gv9x, flashed it to the transmitter. to bad that the eeprom files aren';t compatible. so i had to manually reconfigure the TX.

it works very well, no i have two antenna';s on my TX
some pics:







I know, the 9x is a mess from the inside