How to implement data transfer from one MK to another via the Internet?

Question

Electronics

I ask you to suggest methods for implementing data transfer from one MK to another via the Internet in real time (with minimal delays). For what: replacement of the radio channel for controlling models (auto, boat). I plan to use GPRS modems on both sides. So far, it has only come to the point that one MK will act as a Web server, the other will periodically interrogate / transmit data. MK - STM32xxxx. I suspect there are more elegant solutions.

Answer 1

GPRS channel and realtime concepts are opposite,
than you have standard XBee and nRF24 solutions?
which are easily connected and libraries and examples of darkness

Answer 2

You have already been advised about more elegant solutions. In general, I join mortal .
Also, a very correct question was asked by Fixid - what width of the stream do you plan to transfer between the copter and the remote control.
Actually, GPRS is the minimum delay from 50ms and above.
2G network in GPRS mode is not very productive. The wiki talks about speeds up to 171.2 kbps (in theory). So...
WiFi channel is the best option. Depending on the protocol, it can work from 1-2Mbps to 150+Mbps. And, depending on the controller, which will work already behind the WiFi chip.
As an easier option - with one-way control, you can use 315/433 MHz transceivers, but it's better not to do this and use higher frequency ranges, for example, 914 MHz.
For two-way communication, it is better to stay on WiFi.
Yes, torture the same ESPxx / nRF24.