ESP8266 Community Forum

I'm just curious if there is any existing code to Print to a TCP connection.

i.e remote debugging (well debugging in terms of sending and receiving chars as if it was the serial port ?)

If not, I guess I'll need to write one myself, but it would be less work if someone had already done it

Hi Roger,
Maybe I've misunderstood your question ...
The WifiClient class is derived from more generic Client class, which is derived from Stream and Print class, a bit like any ther Arduino cores, so if you setup a WifiServer on port 23 for example, you can connect with telnet and have debugging over TCP. It is what I'm doing in my Sketch_Buffet (either my ESP version here, or the one I'm using on STM32).

Howdy Roger, in a project I am working upon, I have a need to do just what you suggest ... however, rather than make it appear like a "Serial" port, I was planning on implementing a Telnet server as that would allow an arbitrary telnet client to connect to the ESP8266. Let us see if anyone already has a Telnet server for the ESP8266 and, if not, maybe we can start a Github project to create such a library with an eventual view of submitting it for inclusion to @igrr for the Arduino project.

Neil

Hi Kolban, it is exactly what I've done in the Sketch_Buffet mentioned above. I've simply took the WifiServer example, change it to port 23, and create a small shell command parser to execute other stuff. Maybe I should lean it and add it to github as a TelnetShell example ...