ESP8266 Community Forum

- Fri Feb 16, 2018 1:08 pm #74027 Hi folks,

I need to send receive plain TCP data packets (one byte payload only) to a given IP at a given port.

I have found the UDP library and the corresponding classes, but nothing similar to TCP.
udp.beginPacket(address, 123);
udp.write(packetBuffer, NTP_PACKET_SIZE);
udp.endPacket();

Could somebody help me how to code the same with TCP?
Thank you.

- Sun Feb 18, 2018 9:28 am #74053 Simply take that example and rip off the serial port stuff, you will end up with plain TCP server.
https://github.com/esp8266/Arduino/blob ... Serial.ino