So you see exactly what you typed (and not e.g. every letter repeated 2 times)? Are you sure your telnet client itself does not echo the text back? As far as I can see, this is the default behaviour. Yes I am. I've tested it, just put a Serial.println("COMM"); in the first row of the following cond...

Hello! Honestly I feel myself so dumb, because I cannot figure it out, what I've made wrong. :oops: I try to implement a simple Telnet - UART communication, but when I send a character with telnet, the UART sends it back. WiFiServer server(23); WiFiClient serverClient; void setup() { Serial.begin(11...