transmitter mod

I am going to hack another module into the Devo7e running the DeviationX firmware. This nRF24L01 module will allows me to run WLToys new protocol, HiSky and a host of others. It has the PowerAmp circuit for longest range. See this protocols spreadsheet for more info.

Here’s the schematic:

And here is how I wire it up to the Devo7e.

Keep in mind, there are two locations you can connect the CSN (yellow) point to on the Devo7e. Either to TMS or TCK. If this will be the first addon module you install into your Devo7e, then connect to the TMS location. If there’s already a module installed, then you will use the second point: TCK.

Then put your Devo 7e into USB mode, connect to computer and open up the drive. Locate hardware.ini (tx.ini on older firmware). Enable the newly installed module so that the radio recognize that the module has been installed and remove the * from the protocol selection box. (Remove the semicolon that proceeds the line to enable it.)

If you installed to the TMS location, then A13 is what you need to type in.


enable-nrf24l01 = A13
has_pa-nrf24l01 = 1


If this is your second addon module and you installed it to the TCK location, then A14 is what you need to type in.

enable-nrf24l01 = A14
has_pa-nrf24l01 = 1


Check with the DeviationX manual for more info. Hope this helps.

Yes! Just received my Walkera Devo 7e from BangGood. I was surprise to see it arrive in only 14 days all the way from China. I have been wanting to try DeviationX out for a long time. With the release of DeviationX 3.0 and support for WLtoys v929, v949 and v959 triggerable accessories, not to mention the Hubsan X4 support and SkyArtec support, the Devo 7e had to be a part of my collection.

The size of the Devo 7e makes it very portable. And it feels very solid in the hand. The areas where your palm and finger grip are greeted with rubber. So it’s nice. The sticks are made of aluminum instead of plastic like I thought it would be. And inside, I see ball bearings on the gimbal. A nice surprise.

Anyways, one of the first thing I did was look up tutorial on how to add the FlySky A7105 module to the Devo 7e. This will allow you to use the Devo7e to bind to FlySky protocol and Hubsan protocol. Thrilled to be able to fly my WLToys v911, v929, v949, Xieda 9958 and Hubsan X4. After the successfully mod, I put together the following images to help anybody looking to do the same. Make sure to read through the official Deviation document on how to install the module. Or you can just flex a little brain power and the color dots guide below to complete the mod.

After the hardware has been installed, make sure to open up the hardware.ini with an editor like Notepad++ (Don’t use the built into Windows Notepad. It changes the formatting and the .ini file will no longer be readable by the Devo transmitter.)


enable-a7105=A13
has_pa-a7105=1


Note: there are no semi colon ; preceeding the lines? The semi colon will tell the TX not to read that line, disabling the command. So make sure you remove the semicolon to “enable” the newly installed module. 

The first line enables the module if pin 1.SCS was soldered to the TMS position. If you already have an addon module installed to the TMS position, and have the A7105 module soldered to the TCK point. Then enable-a7105=A14 is what you would enter into the hardware.ini.

The second line has_pa-a7105=1 enables the power amp (PA) support if your A7105 has the PA circuit. Otherwise, leave it as has_pa-a7105=0.