Control via Bluetooth

[AnaRhisT94]

Hi, Can I use multiple RPI's and each of them is connected via Bluetooth to Tello?
And a server code which will enable me to control all of them in parallel?

[carlospzlz]

Hi,

Can I use multiple RPI's and each of them is connected via Bluetooth to Tello?

The connectivity the DJI Tello provides is Wi-Fi. I don't see any problem in connecting multiple devices (RPI or any other) to this network and send commands concurrently (although I haven't tried it myself). Or you mean each RPI connected to a different aircraft?

And a server code which will enable me to control all of them in parallel?

If I understand correctly you would like to have a master process that controls all the RPIs, don't you?
That should be doable too.

Feel free to give me more details of what you are trying to do if I can be of any help.