ESPUartStation

Soft Access Point Class

#include <ESP8266WiFi.h>
WiFi.mode(WIFI_AP)
WiFi.softAP(ssid, password)
WiFi.softAPConfig (local_ip, gateway, subnet)

WiFi.softAPIP()

Station Class

#include <ESP8266WiFi.h>
WiFi.mode(WIFI_STA)
WiFi.begin(APssid, APpw)

WiFi.mode(WIFI_AP_STA)
WiFi.softAP(ssid, password)

WiFi.localIP()

//連線至ROUTER(AP) ESP8266為Station
#define ssid "yourRouterSSID"
#define password "yourRouterPassward"
WiFi.begin(ssid, password); //連進router

//ESP8266 設為AP+Station
WiFi.mode(WIFI_AP_STA);
WiFi.softAP(String("IP-"+ String((WiFi.localIP().toString()))),"");
//藉以取得ESP所分配到的動態IP 打開WiFi 可搜尋到 IP-xxxxxxx

//設定並啟動Server
#define port 9876 //若使用RoboRemo 需用此Port
WiFiServer server(port);//設定Server port
WiFiClient client; //連進softAP之client
server.begin();

//撰寫服務程式如: void service(){}

//loop()
//Server 等待連線
//連入者給于 client 物件
//service(client) 服務連入者

適用於內網

先開啟手機熱點分享

//example 1 (使用手機熱點分享)
#include <ESP8266WiFi.h>
#define UART_BAUD 115200
#define ssid "yourRouterSSID"
#define password   "yourRouterPassward"
#define led 2
#define packTimeout 5 // ms
#define bufferSize 8192
//#define bufferSize 8
#define port 9876   //若使用RoboRemo 需用此Port
WiFiServer server(port);//設定Server port
WiFiClient client; //連進softAP之client
byte buf1[bufferSize];
byte i1=0;
byte buf2[bufferSize];
byte i2=0;

void setup() {
pinMode(led,OUTPUT);
digitalWrite(led,1);
Serial.begin(UART_BAUD);
WiFi.begin(ssid, password); //連進router
while (WiFi.status() != WL_CONNECTED) {
    delay(500);
}
WiFi.mode(WIFI_AP_STA);
WiFi.softAP(String("IPGGx-"+ String((WiFi.localIP().toString()))),"");
//藉以取得ESP所分配到的動態IP 打開WiFi 可搜尋到 IP-xxxxxxx
server.begin();
digitalWrite(led,0);
}

void loop(){
if(!client.connected()) { // if client not connected
    client = server.available(); // wait for it to connect
    return;
   }

service(client);
}

void service(WiFiClient client){
// here we have a connected client

if(client.available()) {
    while(client.available()) {
      buf1[i1] = (byte)client.read(); // read char from client
      if(i1<bufferSize-1) i1++;
    }
    // now send to UART:
    Serial.write(buf1, i1);
    i1 = 0;
}

if(Serial.available()) {

    // read the data until pause:

    while(1) {
      if(Serial.available()) {
        buf2[i2] = (char)Serial.read(); // read char from UART
        if(i2<bufferSize-1) i2++;
      } else {
        //delayMicroseconds(packTimeoutMicros);
        delay(packTimeout);
        if(!Serial.available()) {
          break;
        }
      }
    }

    // now send to WiFi:
    client.flush();
    client.write((char*)buf2, i2);
    i2 = 0;
}
}

試試桌機熱點分享

router 分配表(link)

適用於內網

//Example 2
//要求ROUTER給定指定動態IP
#include <ESP8266WiFi.h>
#define UART_BAUD 115200
#define ssid "B505-01" //以第1,2組為例
#define password   "b505b505"
#define packTimeout 5 // ms
#define bufferSize 8192
//#define bufferSize 8
#define port 9876   //若使用RoboRemo 需用此Port

IPAddress ip(192, 168,31,10); // 第一位同學指定分配 IP
IPAddress netmask(255, 255, 255, 0);
IPAddress ip_gateWay(192,168,31,1);//Router 1,2組內網IP

WiFiServer server(port);//設定Server port
WiFiClient client; //連進softAP之client
byte buf1[bufferSize];
byte i1=0;
byte buf2[bufferSize];
byte i2=0;

void setup() {
Serial.begin(UART_BAUD);
WiFi.begin(ssid, password);
WiFi.config(ip, ip_gateWay, netmask);//指定動態IP
while (WiFi.status() != WL_CONNECTED) {
    delay(500);
}
WiFi.mode(WIFI_AP_STA);
WiFi.softAP(String("IPGGx-"+String((WiFi.localIP().toString()))),"");
server.begin();
}

void loop(){
if(!client.connected()) { // if client not connected
    client = server.available(); // wait for it to connect
    return;//若沒有client，以下程式碼皆不執行(回loop起始點)
}
service(client);

}

void service(WiFiClient client){
// here we have a connected client

if(client.available()) {
    while(client.available()) {
      buf1[i1] = (byte)client.read(); // read char from client
      if(i1<bufferSize-1) i1++;
    }
    // now send to UART:
    Serial.write(buf1, i1);
    i1 = 0;
}

if(Serial.available()) {

    // read the data until pause:

    while(1) {
      if(Serial.available()) {
        buf2[i2] = (char)Serial.read(); // read char from UART
        if(i2<bufferSize-1) i2++;
      } else {
        //delayMicroseconds(packTimeoutMicros);
        delay(packTimeout);
        if(!Serial.available()) {
          break;
        }
      }
    }

    // now send to WiFi:
    client.flush();
    client.write((char*)buf2, i2);
    i2 = 0;
}
}

//return (web)

void loop() {
// brilliant code idea to test here

return;

// the rest of a dysfunctional sketch here
// this code will never be executed
}

適用於外網

以第1,2組第一位同學為例

//要求ROUTER給定指定動態IP
#include <ESP8266WiFi.h>
#define UART_BAUD 115200
#define packTimeout 5 // ms
#define bufferSize 8192
//#define bufferSize 8

#define ssid "B505-01"
#define password   "b505b505"
//若欲由外網b50501.ntue.edu.tw(120.127.10.71)
//每位同學須照分配的IP 與 port 設定
#define port 10000 //第一位同學指定分配Port 10000
IPAddress ip(192, 168,31,10); // 第一位同學指定分配 IP
IPAddress netmask(255, 255, 255, 0);
IPAddress ip_gateWay(192,168,31,1);//Router 1,2組內網IP

WiFiServer server(port);//設定Server port
WiFiClient client; //連進softAP之client
byte buf1[bufferSize];
byte i1=0;
byte buf2[bufferSize];
byte i2=0;

void setup() {
Serial.begin(UART_BAUD);
WiFi.begin(ssid, password);
WiFi.config(ip, ip_gateWay, netmask);//指定動態IP
while (WiFi.status() != WL_CONNECTED) {
    delay(500);
}
WiFi.mode(WIFI_AP_STA);
WiFi.softAP(String("IPGGx-"+String((WiFi.localIP().toString()))),"");
server.begin();
}

void loop(){
if(!client.connected()) { // if client not connected
    client = server.available(); // wait for it to connect
    return;//若沒有client，以下程式碼皆不執行(回loop起始點)
}
service(client);
}

void service(WiFiClient client){
// here we have a connected client

if(client.available()) {
    while(client.available()) {
      buf1[i1] = (byte)client.read(); // read char from client
      if(i1<bufferSize-1) i1++;
    }
    // now send to UART:
    Serial.write(buf1, i1);
    i1 = 0;
}

if(Serial.available()) {

    // read the data until pause:

    while(1) {
      if(Serial.available()) {
        buf2[i2] = (char)Serial.read(); // read char from UART
        if(i2<bufferSize-1) i2++;
      } else {
        //delayMicroseconds(packTimeoutMicros);
        delay(packTimeout);
        if(!Serial.available()) {
          break;
        }
      }
    }

    // now send to WiFi:
    client.flush();
    client.write((char*)buf2, i2);
    i2 = 0;
}
}

連線方式:(以第1,2組第一位同學為例)
外網聯入:
b50501.ntue.edu.tw:1000
120.127.10.71:1000
內網聯入:
192.168.31.10:1000

ESP 當AP:手機聯入
IPGGx-192.168.31.10

廣域網路（Wide Area Network，縮寫為 WAN），又稱廣域網路、外網、公網。

How to Forward a port(web)
A port forward is a way of making a computer on your home or business network accessible to computers on the internet, even though they are behind a router.

搜尋基地台

#include "ESP8266WiFi.h"

void setup() {
Serial.begin(115200);

// Set WiFi to station mode and disconnect from an AP if it was previously connected
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(100);

Serial.println("Setup done");
}

void loop() {
Serial.println("scan start");

// WiFi.scanNetworks will return the number of networks found
int n = WiFi.scanNetworks();
Serial.println("scan done");
if (n == 0) {
    Serial.println("no networks found");
} else {
    Serial.print(n);
    Serial.println(" networks found");
    for (int i = 0; i < n; ++i) {
      // Print SSID and RSSI for each network found
      Serial.print(i + 1);
      Serial.print(": ");
      Serial.print(WiFi.SSID(i));
      Serial.print(" (");
      Serial.print(WiFi.RSSI(i));
      Serial.print(")");
      Serial.println((WiFi.encryptionType(i) == ENC_TYPE_NONE) ? " " : "*");
      delay(10);
    }
}
Serial.println("");

// Wait a bit before scanning again
delay(5000);
}