关于使用 Arduino 的拓展图谱

2023 年 07 月 25 日

219 次浏览

2596字数

跟大家分享一个冷知识，如果你发现生活百无聊赖，晚上不知道吃什么好，那就打开电脑；
看看这里面都写了什么内容。

电路板：ESP8266-NodeMCU
Internet Of Things
将收集到数据上传到Clound Computing，然后进行analysis，从而得到Best command，当IOT设备接收到相应的云计算命令后，相应的控制单元就会开启相关的功能；
**tcp/ip协议**
应用层:http ftp mdns websocket osc
传输层:tcp udp
网络层:ip
网络接口层:ethernet wi-fi..
tcp注重data的完整性，数据受损重新发送；udp注重ping，传输受损不会重发。
**HTTP协议**
    GET /HTTP/1.1 请求行
    Host:www.qqclwy.com
    User-Agent: Mozila/5.0(Windows NT 10.0; WOW64)
    Accept:txt/html
    Accept-Language:zh-CN,zh;q=0.8
    Accept-Encoding:gzip,deflate,sdch
    Connection:Keep-Alive
    HTTP/1.1 200 OK 状态行
    Date: Frl,29 Jul 2023 13:58:44 GMT
    Content-Type: text/html;charset=UTF-8
    Content-Type: image/jpeg
Status:
100~199：Server successfuly received the request 需进一步请求
300~399: Server successfuly received the request 需细化请求
**Connect Iot**
ESP8266: https://cn.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=overview
Arduino：https://www.arduino.cc/en/software
Arduino附加开发板管理网址
    http://arduino.esp8266.com/stable/package_esp8266com_index.json
**esp8266建立ap/wifi**
    #include<ESP8266WIFI.h>
    ②#include<ESP8266WIFIMulti.h>
    const char *ssid = "qqclwy-maker";
    const char *password = "12345678";
    ②ESP8266WIFIMulti wifiMulti;
    Serial.begin(9600);
    WIFI.softAP/begin(ssid, password);
    ②wifiMulti.addAP("qqclwy1-maker","123456");
    ②wifiMulti.addAP("qqclwy2-maker","654321");
    ②......
    Serial.println(WiFi.softAPIP/localIP());
    //重连
    int i = 0;
    while(WIFI.status/②wifiMulti.run() != WL_CONNECTED){
    delay(1000);
    Serial.println(i++);}
**esp8266芯片构建web服务**
```cpp
    #include <ESP8266WiFi.h>
    #include <ESP8266WiFiMulti.h>
    #include <ESP8266WebServer.h>

ESP8266WiFiMulti wifiMulti;
    ESP8266WebServer esp8266_server(80); //建立对象，port80

void setup(void){
	Serial.begin(9600);  //串口通讯

wifiMulti.addAp("qqclwy-maker","12345678");

int i = 0;
	while(wifiMulti.run() != WL_CONNECTED){
	delay(1000);
	Serial.print(i++);Serial.print(' ');
	}
	
	Serial.println('\n');
	Serial.print("Connected to ");
	Serial.println(WiFi.SSID());
	Serial.print("IP address:\t");
	Serial.println(WiFi.localIP());
	
	esp8266_server.begin();
	esp8266_server.on("\",handleRoot); /*200,不同page调用不同function*/
	esp8266_server.onNotFound(handleNotFound); /*404*/
	Serial.println("HTTP esp8266_server started");

void loop(void){
        esp8266_server.handleClient();
        }
	void handleRoot(){
        esp8266_server.send(200,"text/plain","Hello from ESP8266");
        }
	void handleNotFound(){
        esp8266_server.send(404,"text/plain","404: Not found");
        }
    }
```

最后修改：2023 年 10 月 08 日