1 AP 接受手機
2 STA（密碼固定）連接路由器，AP接受手機
3 STA（密碼靈活）連接路由器，AP接受手機
1 AP 接受手機
#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(192,168,4,1);
IPAddress softGateway(192,168,4,1);
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());
}
void loop()
{
WiFiClient client = server.available();
if (client)
{
Serial.println("\n[Client connected]");
while (client.connected())
{
// 將串口數據打印給TCP
if(Serial.available()){
size_t len = Serial.available();
uint8_t sbuf[len];
Serial.readBytes(sbuf, len);
client.write(sbuf, len);
delay(1);
}
// 將TCP數據打印給串口
if (client.available())
{
String line = client.readStringUntil('\r');
Serial.print(line);
}
}
delay(1);
client.stop();
Serial.println("[Client disonnected]");
}
}
2 STA（密碼固定）連接路由器，AP接受手機
/*
WiFiTelnetToSerial - Example Transparent UART to Telnet Server for esp8266
Copyright (c) 2015 Hristo Gochkov. All rights reserved.
This file is part of the ESP8266WiFi library for Arduino environment.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <ESP8266WiFi.h>
//how many clients should be able to telnet to this ESP8266
#define MAX_SRV_CLIENTS 1
const char* ssid = "**********";
const char* password = "**********";
WiFiServer server(23);
WiFiClient serverClients[MAX_SRV_CLIENTS];
void setup() {
Serial1.begin(115200);
WiFi.begin(ssid, password);
Serial1.print("\nConnecting to "); Serial1.println(ssid);
uint8_t i = 0;
while (WiFi.status() != WL_CONNECTED && i++ < 20) delay(500);
if(i == 21){
Serial1.print("Could not connect to"); Serial1.println(ssid);
while(1) delay(500);
}
//start UART and the server
Serial.begin(115200);
server.begin();
server.setNoDelay(true);
Serial1.print("Ready! Use 'telnet ");
Serial1.print(WiFi.localIP());
Serial1.println(" 23' to connect");
}
void loop() {
uint8_t i;
//check if there are any new clients
if (server.hasClient()){
for(i = 0; i < MAX_SRV_CLIENTS; i++){
//find free/disconnected spot
if (!serverClients[i] || !serverClients[i].connected()){
if(serverClients[i]) serverClients[i].stop();
serverClients[i] = server.available();
Serial1.print("New client: "); Serial1.print(i);
continue;
}
}
//no free/disconnected spot so reject
WiFiClient serverClient = server.available();
serverClient.stop();
}
//check clients for data
for(i = 0; i < MAX_SRV_CLIENTS; i++){
if (serverClients[i] && serverClients[i].connected()){
if(serverClients[i].available()){
//get data from the telnet client and push it to the UART
while(serverClients[i].available()) Serial.write(serverClients[i].read());
}
}
}
//check UART for data
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);
delay(1);
}
}
}
}
3 STA（密碼靈活）連接路由器，AP接受手機
/**
* 日期:2017/09/19
* 功能：wifi lamp 8266端
* 加入SmartConfig功能
* 作者：單片機菜鳥
**/
#include <ESP8266WiFi.h>
#include <EEPROM.h>
#define MAX_SRV_CLIENTS 3 //最大同時聯接數，即你想要接入的設備數量，8266tcpserver只能接入五個，哎
#define led 2
#define DEBUG //是否開啟debug功能
#ifdef DEBUG
#define DebugPrintln(message) Serial.println(message)
#else
#define DebugPrintln(message)
#endif
#ifdef DEBUG
#define DebugPrint(message) Serial.print(message)
#else
#define DebugPrint(message)
#endif
const char* ssid = "360wifilulu"; // XXXXXX -- 使用時請修改為當前你的 wifi ssid
const char* password = "6206908you11011010"; // XXXXXX -- 使用時請修改為當前你的 wifi 密碼
const unsigned long BAUD_RATE = 115200; // serial connection speed
const unsigned long HTTP_TIMEOUT = 5000; // max respone time from server
WiFiServer server(8266);//你要的端口號，隨意修改，范圍0-65535
WiFiClient serverClients[MAX_SRV_CLIENTS];
//ssid和密碼結構體
struct config_type{
char ssid[32];
char psw[64];
};
config_type config;
int flag = HIGH;//默認當前滅燈
/**
* @Desc 初始化操作
*/
void setup() {
Serial.begin(BAUD_RATE);
pinMode(led,OUTPUT);
digitalWrite(led, HIGH);
if(!autoConfig()){
smartConfig();
DebugPrint("Connecting to ");//寫幾句提示，哈哈
DebugPrintln(ssid);
while (WiFi.status() != WL_CONNECTED) {
//這個函數是wifi連接狀態，返回wifi鏈接狀態
delay(500);
DebugPrint(".");
}
}
delay(1000);
digitalWrite(led, LOW);
DebugPrintln("IP address: ");
DebugPrintln(WiFi.localIP());//WiFi.localIP()返回8266獲得的ip地址
server.begin();
server.setNoDelay(true); //加上后才正常些
}
/**
* @Desc 主函數
*/
void loop() {
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();//未聯接,就釋放
serverClients[i] = server.available();//分配新的
continue;
}
}
//8266tcpserver只能接入五個 超出的需要釋放
WiFiClient serverClient = server.available();
if (serverClient){
serverClient.stop();
}
}
for (i = 0; i < MAX_SRV_CLIENTS; i++){
if (serverClients[i] && serverClients[i].connected()){
//處理客戶端發過來的數據
if (serverClients[i].available()){
while (serverClients[i].available())
Serial.write(serverClients[i].read());
}
}
}
if(Serial.available()>0){
char ch = Serial.read();
if(ch == '1'){
smartConfig();
delay(1000);
digitalWrite(led, LOW);
DebugPrintln("IP address: ");
DebugPrintln(WiFi.localIP());//WiFi.localIP()返回8266獲得的ip地址
}
}
}
/**
* 自動連接20s 超過之后自動進入SmartConfig模式
*/
bool autoConfig(){
WiFi.mode(WIFI_AP_STA); //設置esp8266 工作模式
WiFi.begin();
delay(2000);//剛啟動模塊的話 延時穩定一下
DebugPrintln("AutoConfiging ......");
for(int i=0;i<20;i++){
int wstatus = WiFi.status();
if (wstatus == WL_CONNECTED){
DebugPrintln("AutoConfig Success");
DebugPrint("SSID:");
DebugPrintln(WiFi.SSID().c_str());
DebugPrint("PSW:");
DebugPrintln(WiFi.psk().c_str());
return true;
}else{
DebugPrint(".");
delay(1000);
flag = !flag;
digitalWrite(led, flag);
}
}
DebugPrintln("AutoConfig Faild!");
return false;
}
/**
* 開啟SmartConfig功能
*/
void smartConfig()
{
WiFi.mode(WIFI_STA);
delay(2000);
DebugPrintln("Wait for Smartconfig");
// 等待配網
WiFi.beginSmartConfig();
while (1){
DebugPrint(".");
delay(500);
flag = !flag;
digitalWrite(led, flag);
if (WiFi.smartConfigDone()){
//smartconfig配置完畢
DebugPrintln("SmartConfig Success");
DebugPrint("SSID:");
DebugPrintln(WiFi.SSID().c_str());
DebugPrint("PSW:");
DebugPrintln(WiFi.psk().c_str());
strcpy(config.ssid, WiFi.SSID().c_str());
strcpy(config.psw, WiFi.psk().c_str());
saveConfig();
WiFi.mode(WIFI_AP_STA); //設置esp8266 工作模式
WiFi.setAutoConnect(true); // 設置自動連接
break;
}
}
}
/*
保存參數到eeprom
*/
void saveConfig()
{
EEPROM.begin(1024);
uint8_t *p = (uint8_t*)(&config);
for (int i = 0; i < sizeof(config); i++)
{
EEPROM.write(i, *(p + i));
}
EEPROM.commit();
}
/*
從EEPROM加載參數
*/
void loadConfig()
{
EEPROM.begin(1024);
uint8_t *p = (uint8_t*)(&config);
for (int i = 0; i < sizeof(config); i++)
{
*(p + i) = EEPROM.read(i);
}
EEPROM.commit();
}