RF Communication over ESP, BLE or other

[sayzer]

ESPs are not communicating on TCP protocol....

Ioannis

ESP-NOW does not use TCP protocol. This is true, but ESP does.
NodeMCU also has TCP protocol.
Why there is no TCP in ESP-NOW, one may ask; I have no idea. Need to check further.

[richard]

this will help

https://forum.arduino.cc/index.php?topic=551310.30

[sayzer]

Thank you Richard; It was a good video indeed.

Here is another one for ESP to ESP.
Surprising result; over 1KM comm distance.