Arduino IDE for ESP8266 项目云盒子（2）一键自配置+网页服务器

2022-08-08 09:58:26

https://item.taobao.com/item.htm?spm=a230r.1.14.20.eYblO3&id=521945102409&ns=1&abbucket=7#detail

手机一键配置esp8266上网，然后发送命令。

1 esp8266烧录代码

代码逐步添加，方便以后回看

1.1 一键自动配置连WIFI+固定IP

#include <ESP8266WiFi.h>

#define LED 2

  

void smartConfig()

{

  WiFi.mode(WIFI_STA);

  Serial.println("\r\nWait for Smartconfig");

  WiFi.beginSmartConfig();

  while (1)

  {

    Serial.print(".");

    digitalWrite(LED, 0);

    delay(500);

    digitalWrite(LED, 1);

    delay(500);

    if (WiFi.smartConfigDone())

    {

      Serial.println("SmartConfig Success");

      Serial.printf("SSID:%s\r\n", WiFi.SSID().c_str());// WIFI 名

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

      Serial.printf("PSW:%s\r\n", WiFi.psk().c_str());

      break;

    }

  }

}

  

void setwifi(){

  }

void setup()

{

  Serial.begin(115200);

  Serial.println("Start module");

  pinMode(LED, OUTPUT);

  digitalWrite(LED, 0);

    setwifi();

  smartConfig();

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

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

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

    WiFi.config(staticIP, gateway, subnet);

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

}

  

void loop()

{

 // delay(100);

 // Serial.println("Start module");

}

1.2 添加服务端端口80

#include <ESP8266WiFi.h>

#define LED 2

WiFiServer server(80);

void smartConfig()

{

  WiFi.mode(WIFI_STA);

  Serial.println("\r\nWait for Smartconfig");

  WiFi.beginSmartConfig();

  while (1)

  {

    Serial.print(".");

    digitalWrite(LED, 0);

    delay(500);

    digitalWrite(LED, 1);

    delay(500);

    if (WiFi.smartConfigDone())

    {

      Serial.println("SmartConfig Success");

      Serial.printf("SSID:%s\r\n", WiFi.SSID().c_str());// WIFI 名

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

      Serial.printf("PSW:%s\r\n", WiFi.psk().c_str());

      break;

    }

  }

}

  

void setwifi(){

  }

void setup()

{

  Serial.begin(115200);

  Serial.println("Start module");

  pinMode(LED, OUTPUT);

  digitalWrite(LED, 0);

    setwifi();

  smartConfig();

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

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

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

    WiFi.config(staticIP, gateway, subnet);

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

   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())

    {

      // read line by line what the client (web browser) is requesting

      if (client.available())

      {

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

        Serial.print(line);

        // wait for end of client's request, that is marked with an empty line

        if (line.length() == 1 && line[0] == '\n')

        {

         // client.println(prepareHtmlPage());

 

           

          break;

        }

      }

    }

    delay(1); // give the web browser time to receive the data

 

    // close the connection:

    client.stop();

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

  }

}

　　1.3 添加网页，游览器输入IP 返回网页

#include <ESP8266WiFi.h>

#define LED 2

WiFiServer server(80);

void smartConfig()

{

  WiFi.mode(WIFI_STA);

  Serial.println("\r\nWait for Smartconfig");

  WiFi.beginSmartConfig();

  while (1)

  {

    Serial.print(".");

    digitalWrite(LED, 0);

    delay(500);

    digitalWrite(LED, 1);

    delay(500);

    if (WiFi.smartConfigDone())

    {

      Serial.println("SmartConfig Success");

      Serial.printf("SSID:%s\r\n", WiFi.SSID().c_str());// WIFI 名

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

      Serial.printf("PSW:%s\r\n", WiFi.psk().c_str());

      break;

    }

  }

}

// prepare a web page to be send to a client (web browser)

String prepareHtmlPage()

{

  String htmlPage =

     String("HTTP/1.1 200 OK\r\n") +

            "Content-Type: text/html\r\n" +

            "Connection: close\r\n" +  // the connection will be closed after completion of the response

            "Refresh: 5\r\n" +  // refresh the page automatically every 5 sec

            "\r\n" +

            "<!DOCTYPE HTML>" +

            "<html>" +

            "Analog input:  " + String(analogRead(A0)) +

            "</html>" +

            "\r\n";

  return htmlPage;

}

  

void setwifi(){

  }

void setup()

{

  Serial.begin(115200);

  Serial.println("Start module");

  pinMode(LED, OUTPUT);

  digitalWrite(LED, 0);

    setwifi();

  smartConfig();

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

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

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

    WiFi.config(staticIP, gateway, subnet);

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

   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())

    {

      // read line by line what the client (web browser) is requesting

      if (client.available())

      {

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

        Serial.print(line);

        // wait for end of client's request, that is marked with an empty line

        if (line.length() == 1 && line[0] == '\n')

        {

          client.println(prepareHtmlPage());

 

           

          break;

        }

      }

    }

    delay(1); // give the web browser time to receive the data

 

    // close the connection:

    client.stop();

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

  }

}

1.4 添加串口回传数据电脑串口-esp-client-WIFI路由器-手机-sever

电脑串口发送1

手机收到 49 （ASCLL码）

#include <ESP8266WiFi.h>

#define LED 2

WiFiServer server(80);

void smartConfig()

{

  WiFi.mode(WIFI_STA);

  Serial.println("\r\nWait for Smartconfig");

  WiFi.beginSmartConfig();

  while (1)

  {

    Serial.print(".");

    digitalWrite(LED, 0);

    delay(500);

    digitalWrite(LED, 1);

    delay(500);

    if (WiFi.smartConfigDone())

    {

      Serial.println("SmartConfig Success");

      Serial.printf("SSID:%s\r\n", WiFi.SSID().c_str());// WIFI 名

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

      Serial.printf("PSW:%s\r\n", WiFi.psk().c_str());

      break;

    }

  }

}

// prepare a web page to be send to a client (web browser)

String prepareHtmlPage()

{

  String htmlPage =

     String("HTTP/1.1 200 OK\r\n") +

            "Content-Type: text/html\r\n" +

            "Connection: close\r\n" +  // the connection will be closed after completion of the response

            "Refresh: 5\r\n" +  // refresh the page automatically every 5 sec

            "\r\n" +

            "<!DOCTYPE HTML>" +

            "<html>" +

            "Analog input:  " + String(analogRead(A0)) +

            "</html>" +

            "\r\n";

  return htmlPage;

}

  

void setup()

{

  Serial.begin(9600);

  Serial.println("Start module");

  pinMode(LED, OUTPUT);

  digitalWrite(LED, 0);

  smartConfig();

    IPAddress staticIP(192,168,1,4);

    IPAddress gateway(192,168,1,4 );

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

    WiFi.config(staticIP, gateway, subnet);

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

  Serial.println(WiFi.localIP());   // 分配的动态地址&自己设置的静态地址

   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())

    {

   if (Serial.available()) {

   Serial.print("1");

       client.println(Serial.read());

  }

      // read line by line what the client (web browser) is requesting

      if (client.available())

      {

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

        Serial.print(line);

        // wait for end of client's request, that is marked with an empty line

        if (line.length() == 1 && line[0] == '\n')

        {

          client.println(prepareHtmlPage());

 

           

          break;

        }

      }

    }

    delay(1); // give the web browser time to receive the data

 

    // close the connection:

    client.stop();

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

  }

}

1.5被用一段代码用于分割收到的命令，提取我们想要的数据

// First line of HTTP request looks like "GET /path HTTP/1.1"  // 收到的命令格式（可修改），解析跟着改

  // Retrieve the "/path" part by finding the spaces

  int addr_start = req.indexOf(' ');//  找到第一个空格

  int addr_end = req.indexOf(' ', addr_start + 1); // 找到第二个空格

  if (addr_start == -1 || addr_end == -1) {

    Serial.print("Invalid request: ");

    Serial.println(req);

    return;

  }

  req = req.substring(addr_start + 1, addr_end);//  截取两个空格间字符

  Serial.print("Request: ");

  Serial.println(req);

　自动保存WIFI信息自渎取　http://blog.csdn.net/sadshen/article/details/47832551

1. 路由器参数的保存和查询

在DEMO中，设置完STATION模式后，就直接smartconfig。我们应当在smartconfig之前做一个参数判断，判断是否有保存的路由器信息。有保存，就连接路由器。没保存，才smartconfig。

void user_init(void)

{

    os_printf("SDK version:%s\n", system_get_sdk_version());

    wifi_set_opmode(STATION_MODE);

    smartconfig_start(smartconfig_done);

}

关于这个路由器参数存储，查了下官方手册，发现SDK还是很贴心的，已经有API可以直接保存和查询了，而不需要我们再去做flash参数存储。

两个关键API摆出来。

保存

wifi_station_set_config

功能:设置 WiFi station 接口的配置参数，并保存到 flash

查询

wifi_station_get_config_default

功能:查询 WiFi station 接口保存在 flash 中的配置参数。

三、代码操作

1.初始化时判断FLASH中是否存有有效的路由器参数。

void user_init(void)

{

    wifi_set_opmode(STATION_MODE);

    wifi_station_get_config_default(&s_staconf);

    if (os_strlen(s_staconf.ssid) != 0) {

      os_printf("user_scan\n");

      system_init_done_cb(user_scan);

    } else {

      os_printf("smartcfg\n");

      smartconfig_start(smartconfig_done);

    }

}

2.已存有路由器参数，去搜索看看AP当前是否存在。

void ICACHE_FLASH_ATTR

user_scan(void)

{

   struct scan_config config;

   os_memset(&config, 0, sizeof(config));

   config.ssid = s_staconf.ssid;

   wifi_station_scan(&config, user_scan_done);

}

3.之后的操作就看个人处理了。

规范的处理是要开启一个线程，周期性检测AP的连接状态，处理不同的错误状态。我就不展开了。

1.6烧录程序