ESP8266 tcp透传AP+STA

AP

建立WIFI，接受STA连接，串口数据和TCP互传 

1#include <ESP8266WiFi.h>
2  
3const char *ssid = "esp8266_666";
4const char *password = "12345678";
5WiFiServer server(8266);
6void setup()
7{
8  Serial.begin(115200);
9  Serial.println();
10  Serial.print("Setting soft-AP ... ");
11    
12IPAddress softLocal(192,168,1,1);  
13IPAddress softGateway(192,168,1,1);
14IPAddress softSubnet(255,255,255,0);
15  
16WiFi.softAPConfig(softLocal, softGateway, softSubnet);  
17WiFi.softAP(ssid, password);
18    
19IPAddress myIP = WiFi.softAPIP();
20  Serial.print("AP IP address: ");
21  Serial.println(myIP);
22 server.begin();
23 Serial.printf("Web server started, open %s in a web browser\n", WiFi.localIP().toString().c_str());
24  
25}
26    float roll, pitch, heading;
27void loop()
28{
29 WiFiClient client = server.available();
30 if (client)
31  {
32    Serial.println("\n[Client connected]");
33    while (client.connected())
34    {
35 
36 //  将串口数据打印给TCP
37  if(Serial.available()){
38    size_t len = Serial.available();
39    uint8_t sbuf[len];
40    Serial.readBytes(sbuf, len);
41   
42    client.write(sbuf, len);
43    delay(1);
44     
45    }
46
47    
48    roll=roll+10; pitch=pitch+10; heading=heading+10;
49    Serial.print("Orientation: ");
50    Serial.print(heading);
51    Serial.print(" ");
52    Serial.print(pitch);
53    Serial.print(" ");
54    Serial.println(roll);
55
56     delay(1000);
57         
58  // 将TCP数据打印给串口
59      if (client.available())
60      {
61       //  String line = client.readStringUntil(13);// arduino换行符号  ascll码 13
62        String line = client.readStringUntil('\r');
63        Serial.println(line);    
64          
65      }
66    }
67    delay(1);
68 
69  //  client.stop();
70    Serial.println("[Client disonnected]");
71  }
72  
73 }

STA

连接WIFI，连接AP，串口数据互传

1#include <ESP8266WiFi.h>
2
3const char* ssid = "esp8266_666";
4const char* password = "12345678";
5
6const char* host = "192.168.1.1";
7  const int httpPort = 8266;
8  
9IPAddress staticIP(192,168,1,22);
10IPAddress gateway(192,168,1,1);
11IPAddress subnet(255,255,255,0);
12
13WiFiClient client;
14
15
16void setup(void)
17{
18  Serial.begin(115200);
19  Serial.println();
20
21  Serial.printf("Connecting to %s\n", ssid);
22  WiFi.config(staticIP, gateway, subnet);
23  WiFi.begin(ssid, password);
24  while (WiFi.status() != WL_CONNECTED)
25  {
26    delay(500);
27    Serial.print(".");
28  }
29  Serial.println();
30  Serial.print("Connected, IP address: ");
31  Serial.println(WiFi.localIP());
32
33
34  
35  if (!client.connect(host, httpPort)) {
36    Serial.println("connection failed");
37    return;
38  }
39
40  
41}
42
43void loop() {
44  
45 // client.print("abc\r");
46 // delay(1000);
47   while(client.available()){
48   //int newLine = 13; 
49   // String line = client.readStringUntil(13);
50    String line = client.readStringUntil('\r');
51    Serial.println(line);
52  }
53  
54  }

测试实例 发送  abc/秒，串口打印输出

1#include <ESP8266WiFi.h>
2
3const char* ssid = "esp8266_666";
4const char* password = "12345678";
5
6const char* host = "192.168.1.1";
7  const int httpPort = 8266;
8  
9IPAddress staticIP(192,168,1,22);
10IPAddress gateway(192,168,1,1);
11IPAddress subnet(255,255,255,0);
12
13WiFiClient client;
14
15
16void setup(void)
17{
18  Serial.begin(115200);
19  Serial.println();
20
21  Serial.printf("Connecting to %s\n", ssid);
22  WiFi.config(staticIP, gateway, subnet);
23  WiFi.begin(ssid, password);
24  while (WiFi.status() != WL_CONNECTED)
25  {
26    delay(500);
27    Serial.print(".");
28  }
29  Serial.println();
30  Serial.print("Connected, IP address: ");
31  Serial.println(WiFi.localIP());
32
33
34  
35  if (!client.connect(host, httpPort)) {
36    Serial.println("connection failed");
37    return;
38  }
39
40  
41}
42
43void loop() {
44  
45
46    
47
48    client.print("abc\r");
49    delay(1000);
50   while(client.available()){
51    String line = client.readStringUntil('\r');
52    Serial.print(line);
53  }
54  
55  }