In last two months we are working to new special console for control our drone , gimbal , rc models ... we develop a special application on android and some hardware interface for interconnect different kind of tx radio module. Our idea is to virtualize the hardware interface and have a flexible enviroment for control different kind of application.

This is only a preview of our work in the picture above is possible to see the direct interface with Jeti radio tx module.




In this kind of configuration the VR Droid PAD connect directly by a custom hardware the Jeti Tx module.

So is possible to use same reciver on your drone without change it. 








VR Droid RC is software that turns your Android smartphone or your pad into a powerful digital remote control for use with your radio model.
Is designed to be used on Rover or Drones or professional use. It 'sa project dynamic and evolving based on feedback from users of our community:

The main features are:
- Ability to manage up to 8 channels.
- 4 Channel standard for management ROLL, PITCH, YAW and Throttle.

- Auto Repositioning of 2 main stick when you put the finger on the screen.

- 5 additional channels of digital or analog.
- Management of the minimum and maximum for each channel.
- Management Trim
- Management subtrim.
- Reverse channel management.
- Configuration management esponeziali on standard channels.
- Management of up to two simultaneous feedback with vibration and sound feedback to throttle on the second audio output.
- Management mode 1,2,3,4 as standard RC trasmitter.
PPMSUM standard output compatible with the most 'popular radio modules tx.
Manages two modes: configuration and live to allow the maximum fluidity of the commands and the maximum configurability by users.

The current version is a preview suitable only for beta testing use it carefully.

Check the forum for have more detail about the application development

If anyone want to share their experiences testing/using this app, or want to discuss anything in my blog post´s this forum thread can be used here we add also the schematics of op amp for interface VR Radio RC to your pad.


This is our facebook fan page :


News on revision 1.4 27/03/2013

1) New name , we change the name to application the old was VR DROID RC Trasmitter , we change it in VR Radio RC , more simple , we change also the link in google play:) 

2) We deactivate the limit inside the application and add some special function for customize the widget available on main screen , we prefer mantain priority on control of drone . So on the scrreen you choose to have only virtual stick.

3) Add the configuration of radius of virtual stick it's customizable directly inside the option pannel.

4) Improve Option pannel its more simple and better organized.

5) Add the Expo control for the stick.

5) Add feeback on 3 channel : gas ( on 1 speaker channel) and pitch  (on vibro) is fixed and you can add 1 other feedback and decide if is on yaw or roll on vibro . 


This is the link at : Vr Radio RC rev 1.4 in  google play :


Try it and send us some suggestions for improve the application and the interface.



Roberto Navoni


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  • Roberto, waiting to hear on any development for some of the feedback points, I mention for example point 1;

    The Joysticks large blue circular areas gets dragged lots of here and there. Also pls do not save your blog with present date.



  • Moderator

    Hi Ben,

    strange check the new release and verify the FPS normally i see that if it is up 20 fps the application work fine on your device .

    If not try to disable some widget and mantain only virtual stick .



  • Wow this is awesome, but when I launch the program on my galaxy s2, the screen goes black for about 30 seconds before quitting- Is the S2 supported? Awesome idea here, Honestly using the headphone jack to put PPM through is brilliant!

  • Hi Roberto !

    The application is very well working on my android 4.03 tab ( T-Pad-IS709C ). I have certain feedback;

    1. The Joysticks large blue circular areas gets dragged lots of here and there.

    2. Increased space between the variable three knobs would be better.

    3. Variable knobs should not rotate more than 360deg in one direction, presently they are getting rotated  more than 360deg continuously.

    I would provide more feedback, once I start testing and for that I need the complete detail on the interface circuit ( Schmit Trigger based on OpAmp), which you have used.



  • Moderator

    Hi Rana, 

    today i think that i upload an example of circuit for connect the speaker output to tx module. Inside the setting you can config if signal ppm sum produced by pad is standard or negative we see in our test that some pad produce a inverted signal so introduce this option.

    In last revision of software we introodue audio feedback for throttle that is available on second audio channel. So on 1 channel you have ppmsum on other audio output for feedback of throttle .

    For understand how you need , you need only an amp op that trasform output signal from 1.3 v in 5v logic so is compatible with standard module available on the market. 

    Could be nice doing test with different type of module and check if all is ok or not.

    How work on your PAD the application ? Is fluid or not  ?



  • Ah, that's really supper ! Need some wiki help on how to get is going for the first time (Wiring detail). It's getting installed on one of my 7'' Android 4.03 tab.

  • 3692657982?profile=original

    That's really supper !

  • Hi Roberto ! Any development on the availability of app to test ?

  • Cool...can this be adapted to other transmitters?  Would be really cool if you could display the output of a FPV receiver on the Android tablet too :-)

  • i use jeti...

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