arduino - spray

Hello guys I am new to ESP8266 programming using arduino IDE. I am trying to establish UDP communication between two ESP8266 devices, one as master and client. I observed as expected ,that not all data were successfully received by the master.

I am using UDP to connect two nodemcu modules. One nodemcu is wireless acces point and another nodemcu connects to access point as client. This code sends client's IP adress to AP when client connects: Udp.beginPacket("192.168.4.1", UDPPort);//send ip to server char ipBuffer[20]; WiFi.localIP().toString().toCharArray(ipBuffer, 20); Udp.write(ipBuffer); Udp.endPacket(); Serial.println("Sent ip adress to server"); But on the server side I don't recieve this packet.

Esp8266 UDP Spezial || UDP Senden und empfangen als Unicast Multicast Broadcast

The purpose of example application below is to demonstrate UDP communication between ESP8266 and an external client. The application (performing the role of a server) is checking inside the for an UDP packet to arrive. When a valid packet is received, an acknowledge packet is sent back to the client to the same port it has been sent out.

Looking for the easiest way to send and receive data from an ESP8266? A great starting point is understanding how to configure your ESP8266 to send and receive a UDP packet. You can use UDP to communicate with other ESP8266 devices, your computer or many other WiFi devices.

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Get started with PlatformIO, a great alternative to the Arduino IDE. Examples with Arduino, ESP32 & XIAO microcontrollers.Article with references & code: htt...