Arduino文档阅读笔记-WeMos D1 ESP8266 WIFI开发板入门网络IT1995的博客-

WeMos D1开发板以ESP8266WIFI开发板为基础，使用Arduino开发板的设计，工作电压为3.3V设计出来的开发板，这个开发板仅仅是使用了Arduino uno的布局设计，并不是Arduino的开发板。

下面是关于这块开发板的说明书：

总结下：

此开发板芯片为ESP8266（32位），缓存比Arduino Uno大，并且包含11个数字IO引脚以及1个模拟输入引脚，使用Micro-B type USB线进行连接。

下面是引脚方面的说明！

所有的引脚都需要跑到3.3V上，并且除了D0口其他口都支持interrupt/PWM/I2C/one-wire。

下面是在Arduino IDE中部署其开发环境

软件需要如下3个：

CH340G USB to UART driver: https://www.wemos.cc/downloads

Python 2.7: https://www.python.org/downloads/release/python-2713/

Arduino 1.8.2: https://www.arduino.cc/en/Main/Software

在Arduino的目录下新建2个文件夹esp8266com及esp8266

在Github上下载其库文件：

将压缩包放到esp8266目录下，然后解压：

将里面的文件移到到esp8266中，再将Arduino-master与Arduino-master.zip删掉。

最后变成这个样子即可！

打开CMD然后执行如下命名：

 python get.py

此命令将会下载开发板所需要的工具，一切正常，且安装好将会是这样的。

这样就完成了安装！！！

使用Arduino IDE时要选中正确的开发板，Toos>Board中选择”WeMos D1 R2 & Mini”即可：

下面是几个示例代码：

Blink

 /*  ESP8266 Blink by Simon Peter  Blink the blue LED on the ESP-01 module  This example code is in the public domain    The blue LED on the ESP-01 module is connected to GPIO1   (which is also the TXD pin; so we cannot use Serial.print() at the same time)    Note that this sketch uses LED_BUILTIN to find the pin with the internal LED */  void setup() {   pinMode(LED_BUILTIN, OUTPUT);     // Initialize the LED_BUILTIN pin as an output }  // the loop function runs over and over again forever void loop() {   digitalWrite(LED_BUILTIN, LOW);   // Turn the LED on (Note that LOW is the voltage level                                     // but actually the LED is on; this is because                                      // it is active low on the ESP-01)   delay(1000);                      // Wait for a second   digitalWrite(LED_BUILTIN, HIGH);  // Turn the LED off by making the voltage HIGH   delay(2000);                      // Wait for two seconds (to demonstrate the active low LED) }

查看下芯片的ID，这里串口打印频率要选择115200

 /*  Get Chip ID  *  wemos.cc  *    *    */  void setup() {   Serial.begin(115200); }  void loop() {   Serial.println("");   Serial.println("");   Serial.println("Check ID in:");   Serial.println("https://www.wemos.cc/verify_products");   Serial.printf("Chip ID = %08Xn", ESP.getChipId());   Serial.println("");   Serial.println("");   delay(5000); }

运行一个简单的Web Server

 #include <ESP8266WiFi.h> #include <WiFiClient.h> #include <ESP8266WebServer.h> #include <ESP8266mDNS.h>  const char* ssid = "........"; const char* password = "........";  ESP8266WebServer server(80);  const int led = 13;  void handleRoot() {   digitalWrite(led, 1);   server.send(200, "text/plain", "Hello from esp8266!");   digitalWrite(led, 0); }  void handleNotFound(){   digitalWrite(led, 1);   String message = "File Not Foundnn";   message += "URI: ";   message += server.uri();   message += "nMethod: ";   message += (server.method() == HTTP_GET)?"GET":"POST";   message += "nArguments: ";   message += server.args();   message += "n";   for (uint8_t i=0; i<server.args(); i++){     message += " " + server.argName(i) + ": " + server.arg(i) + "n";   }   server.send(404, "text/plain", message);   digitalWrite(led, 0); }  void setup(void){   pinMode(led, OUTPUT);   digitalWrite(led, 0);   Serial.begin(115200);   WiFi.begin(ssid, password);   Serial.println("");    // Wait for connection   while (WiFi.status() != WL_CONNECTED) {     delay(500);     Serial.print(".");   }   Serial.println("");   Serial.print("Connected to ");   Serial.println(ssid);   Serial.print("IP address: ");   Serial.println(WiFi.localIP());    if (MDNS.begin("esp8266")) {     Serial.println("MDNS responder started");   }    server.on("/", handleRoot);    server.on("/inline", [](){     server.send(200, "text/plain", "this works as well");   });    server.onNotFound(handleNotFound);    server.begin();   Serial.println("HTTP server started"); }  void loop(void){   server.handleClient(); }

ssid填写wifi名，password填写wifi密码