ESP8266局域网 路由器下作服务器模式串口透传 arduino uno示例 模板参考

ESP8266服务器模式串口透传编译需要下载8266的库文件后才可以正常

#include <ESP8266WiFi.h>
#define MAX_SRV_CLIENTS 5   //最大同时联接数，即你想要接入的设备数量，8266tcpserver只能接入五个，哎

const char *ssid = "icloud"; ////这里是我的wifi，你使用时修改为你要连接的wifi ssid
const char *password = "icloudelectron"; //你要连接的wifi密码

IPAddress local_IP(192, 168, 43, 181);//加入路由器时192, 168, 0, 1开始或根据路由分配的起始IP可到路由器中查看
IPAddress gateway(192, 168, 43, 1);//加入路由器时192, 168, 0, 1/手机自建服务器时路由网关192, 168, 43, 1
IPAddress subnet(255, 255, 255, 0);

WiFiServer server(8266);//你要的端口号，随意修改，范围0-65535
WiFiClient serverClients[MAX_SRV_CLIENTS];
void setup()
{
    Serial.begin(9600);
    delay(10);
    pinMode(16, OUTPUT);
    digitalWrite(16, 0);
    WiFi.config(local_IP, gateway, subnet);//192.168.0.200
    WiFi.mode(WIFI_STA);
    WiFi.begin(ssid, password);

    while (WiFi.status() != WL_CONNECTED)
    {
        delay(500);
    }
    server.begin();
    server.setNoDelay(true);  //加上后才正常些
}

void loop()
{
    blink();

    uint8_t i;
    if (server.hasClient())
    {
        for (i = 0; i < MAX_SRV_CLIENTS; i++)
        {
            if (!serverClients[i] || !serverClients[i].connected())
            {
                if (serverClients[i]) serverClients[i].stop();//未联接,就释放
                serverClients[i] = server.available();//分配新的
                continue;
            }

        }
        WiFiClient serverClient = server.available();
        serverClient.stop();
    }
    for (i = 0; i < MAX_SRV_CLIENTS; i++)
    {
        if (serverClients[i] && serverClients[i].connected())
        {
            digitalWrite(16, 0);//有链接存在,就一直长亮

            if (serverClients[i].available())
            {
                while (serverClients[i].available()) 
                    Serial.write(serverClients[i].read());
            }
        }
    }
    if (Serial.available())
    {
        size_t len = Serial.available();
        uint8_t sbuf[len];
        Serial.readBytes(sbuf, len);
        //push UART data to all connected telnet clients
        for (i = 0; i < MAX_SRV_CLIENTS; i++)
        {
            if (serverClients[i] && serverClients[i].connected())
            {
                serverClients[i].write(sbuf, len);  //向所有客户端发送数据
                delay(1);
            }
        }
    }
}


void blink()
{
    static long previousMillis = 0;
    static int currstate = 0;

    if (millis() - previousMillis > 200)  //200ms
    {
        previousMillis = millis();
        currstate = 1 - currstate;
        digitalWrite(16, currstate);
    }
}

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