ESP8266 tcp透传AP+STA

AP

建立WIFI，接受STA连接，串口数据和TCP互传

#include <ESP8266WiFi.h>

const char *ssid = "esp8266_666";

const char *password = "12345678";

WiFiServer server(8266);

void setup()

{

  Serial.begin(115200);

  Serial.println();

  Serial.print("Setting soft-AP ... ");

IPAddress softLocal(192,168,1,1);

IPAddress softGateway(192,168,1,1);

IPAddress softSubnet(255,255,255,0);

WiFi.softAPConfig(softLocal, softGateway, softSubnet);

WiFi.softAP(ssid, password);

IPAddress myIP = WiFi.softAPIP();

  Serial.print("AP IP address: ");

  Serial.println(myIP);

 server.begin();

 Serial.printf("Web server started, open %s in a web browser\n", WiFi.localIP().toString().c_str());

}

    float roll, pitch, heading;

void loop()

{

 WiFiClient client = server.available();

 if (client)

  {

    Serial.println("\n[Client connected]");

    while (client.connected())

    {

 //  将串口数据打印给TCP

  if(Serial.available()){

    size_t len = Serial.available();

    uint8_t sbuf[len];

    Serial.readBytes(sbuf, len);

    client.write(sbuf, len);

    delay(1);

    }

    roll=roll+10; pitch=pitch+10; heading=heading+10;

    Serial.print("Orientation: ");

    Serial.print(heading);

    Serial.print(" ");

    Serial.print(pitch);

    Serial.print(" ");

    Serial.println(roll);

     delay(1000);

  // 将TCP数据打印给串口

      if (client.available())

      {

       //  String line = client.readStringUntil(13);// arduino换行符号  ascll码 13

        String line = client.readStringUntil('\r');

        Serial.println(line);

      }

    }

    delay(1);

  //  client.stop();

    Serial.println("[Client disonnected]");

  }

 }

　　

　　

STA

连接WIFI，连接AP，串口数据互传

#include <ESP8266WiFi.h>

const char* ssid = "esp8266_666";

const char* password = "12345678";

const char* host = "192.168.1.1";

  const int httpPort = 8266;

IPAddress staticIP(192,168,1,22);

IPAddress gateway(192,168,1,1);

IPAddress subnet(255,255,255,0);

WiFiClient client;

void setup(void)

{

  Serial.begin(115200);

  Serial.println();

  Serial.printf("Connecting to %s\n", ssid);

  WiFi.config(staticIP, gateway, subnet);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED)

  {

    delay(500);

    Serial.print(".");

  }

  Serial.println();

  Serial.print("Connected, IP address: ");

  Serial.println(WiFi.localIP());

  if (!client.connect(host, httpPort)) {

    Serial.println("connection failed");

    return;

  }

}

void loop() {

 // client.print("abc\r");

 // delay(1000);

   while(client.available()){

   //int newLine = 13;

   // String line = client.readStringUntil(13);

    String line = client.readStringUntil('\r');

    Serial.println(line);

  }

  }

　　

测试实例 发送  abc/秒，串口打印输出

#include <ESP8266WiFi.h>

const char* ssid = "esp8266_666";

const char* password = "12345678";

const char* host = "192.168.1.1";

  const int httpPort = 8266;

IPAddress staticIP(192,168,1,22);

IPAddress gateway(192,168,1,1);

IPAddress subnet(255,255,255,0);

WiFiClient client;

void setup(void)

{

  Serial.begin(115200);

  Serial.println();

  Serial.printf("Connecting to %s\n", ssid);

  WiFi.config(staticIP, gateway, subnet);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED)

  {

    delay(500);

    Serial.print(".");

  }

  Serial.println();

  Serial.print("Connected, IP address: ");

  Serial.println(WiFi.localIP());

  if (!client.connect(host, httpPort)) {

    Serial.println("connection failed");

    return;

  }

}

void loop() {

    client.print("abc\r");

    delay(1000);

   while(client.available()){

    String line = client.readStringUntil('\r');

    Serial.print(line);

  }

  }