本文整理汇总了C++中WiFiUDP::beginPacketMulticast方法的典型用法代码示例。如果您正苦于以下问题：C++ WiFiUDP::beginPacketMulticast方法的具体用法？C++ WiFiUDP::beginPacketMulticast怎么用？C++ WiFiUDP::beginPacketMulticast使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类WiFiUDP的用法示例。
在下文中一共展示了WiFiUDP::beginPacketMulticast方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: discoverSonos
int SonosEsp::discoverSonos(){
_numberOfDevices=0;
WiFiUDP Udp;
Udp.begin(1900);
IPAddress sonosIP;
bool timedOut = false;
unsigned long timeLimit = 15000;
unsigned long firstSearch = millis();
do {
Serial.println("Sending M-SEARCH multicast");
Udp.beginPacketMulticast(IPAddress(239, 255, 255, 250), 1900, WiFi.localIP());
Udp.write("M-SEARCH * HTTP/1.1\r\n"
"HOST: 239.255.255.250:1900\r\n"
"MAN: \"ssdp:discover\"\r\n"
"MX: 1\r\n"
"ST: urn:schemas-upnp-org:device:ZonePlayer:1\r\n");
Udp.endPacket();
unsigned long lastSearch = millis();
while((millis() - lastSearch) < 5000){
int packetSize = Udp.parsePacket();
if(packetSize){
char packetBuffer[255];
//Serial.print("Received packet of size ");
//Serial.println(packetSize);
//Serial.print("From ");
sonosIP = Udp.remoteIP();
//xxx if new IP, it should be put in an array
addIp(sonosIP);
//found = true;
Serial.print(sonosIP);
Serial.print(", port ");
Serial.println(Udp.remotePort());
// read the packet into packetBufffer
int len = Udp.read(packetBuffer, 255);
if (len > 0) {
packetBuffer[len] = 0;
}
//Serial.println("Contents:");
//Serial.println(packetBuffer);
}
delay(50);
}
} while((millis()-firstSearch)<timeLimit);
//if (!found) {
//sonosIP.fromString("0.0.0.0"); xxx
//}
return _numberOfDevices;
}