ORIGINAL: Bax
OK, it depends upon the device. The CGY750 is not programmed via the transmitter.
The GY-520 gyro is not a S-Bus unit. It would need an S-Bus decoder to operate on the S-Bus:
FUTM4191 SBD-1 SBUS DECODER 1600MM US$69.99
FUTM4192 SBD-1 SBUS DECODER 1100MM US$67.99
These parts can be ordered through any hobby retailer who sells Futaba systems and accessories.
To program a unit from the transmitter, though, you just plug it in and enter the servo programming screen. The available parameters will show up as the transmitter senses the device that's attached. Otherwise, your best bet is to purchase the CIU-2 interface and download the software to do it from your PC.
Oh Please... Now I'm getting angry [:@] It's printed on top of GY520 cover that it's S.Bus gyro! Please refer to the attached picture. There is also PC software version for CIU-2 to set S.Bus channels and other parameters of GY520. And you are trying to sell me also SBD-1 decoder which I won't need eventually? and CIU-2?
I have tried the servo programming screen several times with the gyro and it's not working. It seems to me that Futaba has been missleading customers with false marketing and whole feature is missing from MZ18. Why I should pay extra and purchase one extra Futaba gadget to get programming done? I already bought the damn expensive gadget, MZ18 that was claimed to act as CIU-2 with gyros.
Ps. could you please clarify the other question related to receiver external voltage usecase. I have seen the drive & Jet ECU batteries works well but I want to be sure if there is reliability issue that could cause an expensive crash.