#include <DNSServer.h> //Local DNS Server used for redirecting all requests to the configuration portal #include <ESP8266WebServer.h> //Local WebServer used to serve the configuration portal #include <ESP_WiFiManager.h> //Configuration Magic #include <ESP8266WiFi.h> #include <WiFiUdp.h> #if (defined(USE_STATIC_IP_CONFIG_IN_CP) && !USE_STATIC_IP_CONFIG_IN_CP) // Force DHCP to be true #if defined(USE_DHCP_IP) #undef USE_DHCP_IP #endif #define USE_DHCP_IP true #else // You can select DHCP or Static IP here #define USE_DHCP_IP false #endif #define USE_CONFIGURABLE_DNS false WiFiUDP Udp; ESP_WiFiManager wifiManager; unsigned int localUdpPort = 5000; char incomingPacket[256]; char replyPacket[] = "color recieved"; void setup() { Serial.begin(9600); Serial.println(); wifiManager.setSTAStaticIPConfig(IPAddress(192,168,43,69),IPAddress(192,168,43,1),IPAddress(255, 255, 255, 0)); if (!wifiManager.autoConnect("rgbTower", "S1o2m3u4@")) { Serial.println("failed to connect, we should reset as see if it connects"); delay(3000); ESP.reset(); delay(5000); } Serial.println(" connected"); Udp.begin(localUdpPort); Serial.printf("Now listening at IP %s, UDP port %d\n", WiFi.localIP().toString().c_str(), localUdpPort); } void loop() { int packetSize = Udp.parsePacket(); if (packetSize) { // receive incoming UDP packets Serial.printf("Received %d bytes from %s, port %d\n", packetSize, Udp.remoteIP().toString().c_str(), Udp.remotePort()); int len = Udp.read(incomingPacket, 255); if (len > 0) { incomingPacket[len] = 0; } Serial.printf("UDP packet contents: %s\n", incomingPacket); // send back a reply, to the IP address and port we got the packet from Udp.beginPacket(Udp.remoteIP(), 5000); Udp.write(replyPacket); Udp.endPacket(); } }