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1、硬件

用一個四博智聯提供的nodemcu。一個OLED屏，一個USB線，4根杜邦線，可以上網的路由器，電腦。

? ???3V3---VCC

? ???GND---GND

? ???GPIO4(D2)---SDA

? ???GPIO5(D1)---SCL

2、設置路由器

把路由器賬號設置為把路由器賬號設置為

賬號：xh003

密碼：zxd+19901120=

3、燒錄程序

打開ESP_TOOLS下載工具，選擇8266.

工具下載：http://bbs.doit.am/forum.php?mod ... 6&highlight=TOO

點擊START.等待燒錄完成。

燒錄完成后復位一下nodemcu。等待10s左右。

測試結果如下：

Arduino代碼如下：

#include

#include "OLED.h"

static const char logo[] PROGMEM={

0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0xff,0x7f,0x80,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0xff,0x03,0x00,0xf0,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0x7f,0x00,0x00,0x80,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0x0f,0x00,0x00,0x00,0xfe,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0x03,0x00,0x00,0x00,0xf8,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0xe0,0xff,0x03,0x00,0xe0,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x1f,0x1c,0xf0,0x1f,0x00,0x80,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x0f,0x00,0x80,0x7f,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x0f,0x00,0x00,0xff,0x01,0x00,0xfc,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x07,0x00,0x00,0xfe,0x03,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x03,0x00,0x00,0xfc,0x07,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x01,0x00,0x00,0xf8,0x0f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x3f,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x1f,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x0f,0x00,0x00,0x00,0xf0,0x3f,0x00,0xf0,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x07,0x00,0x00,0x00,0xf0,0x1f,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x07,0x00,0x00,0x00,0xf0,0x0f,0x00,0xf8,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x03,0x00,0x00,0x00,0xf8,0x03,0x00,0xfc,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x01,0x00,0x00,0x00,0xfc,0x00,0x00,0x7e,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x01,0x00,0x00,0x00,0x7f,0x00,0x00,0x7f,0xf8,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x00,0x00,0x00,0x80,0x1f,0x00,0x80,0x7f,0xf8,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x00,0x00,0x00,0xe0,0x07,0x00,0xc0,0x3f,0xf0,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x00,0x00,0x00,0xf8,0x01,0x00,0xe0,0x3f,0xf0,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x00,0x00,0x7f,0x00,0x00,0xf8,0x3f,0xf0,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x00,0xe0,0x1f,0x00,0x00,0xfe,0x0f,0xf0,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x00,0xf8,0x03,0x00,0x80,0xff,0x0f,0xf8,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x00,0x7e,0x00,0x00,0xe0,0xff,0x01,0xf0,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x00,0x1f,0x00,0x00,0xf8,0xff,0x00,0xf8,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0xc0,0x0f,0x00,0x00,0xfe,0x7f,0x00,0xfc,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0xe0,0x03,0x00,0x80,0xff,0x1f,0x00,0xfe,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0xf8,0x01,0x00,0xe0,0xff,0x07,0x00,0xfe,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x7c,0x00,0x00,0xfc,0xff,0x00,0x00,0xfc,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x3e,0x00,0x00,0xff,0x07,0x00,0x00,0xfc,0xff,0xff,0xff,0x7f,

0xff,0xff,0x7f,0x00,0x0f,0x00,0xc0,0xff,0x07,0x00,0x00,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x80,0x07,0x00,0xf0,0xff,0xff,0x0f,0xc0,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xc0,0x03,0x00,0xf8,0xff,0xff,0x3f,0xf8,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xc0,0x01,0x00,0xfe,0xf8,0xc7,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xe1,0x01,0x00,0x7f,0xc0,0x03,0x87,0x00,0xfe,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xe1,0x00,0xc0,0x7f,0x80,0x01,0x86,0x00,0xfe,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x63,0x00,0xe0,0x7f,0x80,0x01,0x86,0x00,0xfe,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x63,0x00,0xe0,0x7f,0x8c,0x31,0x86,0xc3,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x67,0x00,0xc0,0x7f,0x8c,0x31,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x6f,0x00,0xc0,0x7f,0x8c,0x31,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0x7f,0x00,0xc0,0x7f,0x8c,0x31,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x00,0x80,0x7f,0x80,0x01,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x01,0x00,0x7f,0x80,0x01,0x86,0x83,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x03,0x00,0x7c,0xc0,0x03,0x87,0x83,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x07,0x00,0xf8,0xff,0xff,0xf1,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x0f,0x00,0xe0,0xff,0x7f,0xf0,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x3f,0x00,0x00,0xfe,0x07,0xfc,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0x7f,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0x03,0x00,0x00,0xe0,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0x0f,0x00,0x00,0xfc,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0x7f,0x00,0x80,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0xff,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,

0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f

};

//GPIO4(SDA) GPIO5(SCL)

OLED display(4, 5);

const char* ssid? ???= "xh003";? ?? ?? ?// XXXXXX -- 使用時請修改為當前你的 wifi ssid

const char* password = "zxd+19901120=";? ?? ?? ?// XXXXXX -- 使用時請修改為當前你的 wifi 密碼

const char* host = "api.seniverse.com";

const char* APIKEY = "wcmquevztdy1jpca";? ?? ???//API KEY

const char* city = "shenzhen";

const char* language = "en";//zh-Hans 簡體中文??會顯示亂碼

const unsigned long BAUD_RATE = 115200;? ?? ?? ?? ?? ?? ? // serial connection speed

const unsigned long HTTP_TIMEOUT = 5000;? ?? ?? ?? ?? ?// max respone time from server

const size_t MAX_CONTENT_SIZE = 1000;? ?? ?? ?? ?? ?? ? // max size of the HTTP response

// 我們要從此網頁中提取的數據的類型

struct UserData {

??char city[16];//城市名稱

??char weather[32];//天氣介紹（多云...）

??char temp[16];//溫度

??char udate[32];//更新時間

};

WiFiClient client;

char response[MAX_CONTENT_SIZE];

char endOfHeaders[] = "\r\n\r\n";

/**

* @Desc 初始化操作

void setup() {

??WiFi.mode(WIFI_STA);? ???//設置esp8266 工作模式

??Serial.begin(BAUD_RATE);

??delay(10);

??Serial.println();

??Serial.print("Connecting to ");//寫幾句提示，哈哈

??Serial.println(ssid);

??WiFi.begin(ssid, password);? ?//連接wifi

??while (WiFi.status() != WL_CONNECTED) {

? ? //這個函數是wifi連接狀態，返回wifi鏈接狀態

? ? delay(100);

? ? Serial.print(".");

??}

??Serial.println("");

??Serial.println("WiFi connected");

??delay(100);

??Serial.println("IP address: ");

??Serial.println(WiFi.localIP());//WiFi.localIP()返回8266獲得的ip地址

??client.setTimeout(HTTP_TIMEOUT);

}

/**

* @Desc??主函數

void loop() {

? ?//初始化oled

??display.begin();

??//測試顯示信息

??display.print("Hello DOIT",2,3);

??display.print("www.doit.am",4,3);

??delay(2*1000);

??display.clear();

??while (!client.connected()){

? ???if (!client.connect(host, 80)){

? ?? ?? ?Serial.println("connection....");

? ?? ?? ?delay(100);

? ???}

??}

??if (sendRequest(host, city, APIKEY) && skipResponseHeaders()) {

? ? clrEsp8266ResponseBuffer();

? ? readReponseContent(response, sizeof(response));

? ? UserData userData;

? ? if (parseUserData(response, &userData)) {

? ?? ?printUserData(&userData);

? ? }

??}

??delay(300);//每5s調用一次

}

/**

* @發送請求指令

bool sendRequest(const char* host, const char* cityid, const char* apiKey) {

??// We now create a URI for the request

??//心知天氣

??String GetUrl = "/v3/weather/now.json?key=";

??GetUrl += apiKey;

??GetUrl += "&location=";

??GetUrl += city;

??GetUrl += "&language=";

??GetUrl += language;

??// This will send the request to the server

??client.print(String("GET ") + GetUrl + " HTTP/1.1\r\n" +

? ?? ?? ?? ?? ?"Host: " + host + "\r\n" +

? ?? ?? ?? ?? ?"Connection: close\r\n\r\n");

??Serial.println("create a request:");

??Serial.println(String("GET ") + GetUrl + " HTTP/1.1\r\n" +

? ?? ?? ?? ?? ?"Host: " + host + "\r\n" +

? ?? ?? ?? ?? ?"Connection: close\r\n");

??delay(100);

??return true;

}

/**

* @Desc 跳過 HTTP 頭，使我們在響應正文的開頭

bool skipResponseHeaders() {

??// HTTP headers end with an empty line

??bool ok = client.find(endOfHeaders);

??if (!ok) {

? ? Serial.println("No response or invalid response!");

??}

??return ok;

}

/**

* @Desc 從HTTP服務器響應中讀取正文

void readReponseContent(char* content, size_t maxSize) {

??size_t length = client.peekBytes(content, maxSize);

??delay(100);

??Serial.println("Get the data from Internet!");

??content[length] = 0;

??Serial.println(content);

??Serial.println("Read data Over!");

??client.flush();//這句代碼需要加上??不然會發現每隔一次client.find會失敗

}

/**

* @Desc 解析數據

* 數據格式如下：

* {

*? ? "results": [

*? ?? ???{

*? ?? ?? ?? ?"location": {

*? ?? ?? ?? ?? ? "id": "WX4FBXXFKE4F",

*? ?? ?? ?? ?? ? "name": "北京",

*? ?? ?? ?? ?? ? "country": "CN",

*? ?? ?? ?? ?? ? "path": "北京,北京,中國",

*? ?? ?? ?? ?? ? "timezone": "Asia/Shanghai",

*? ?? ?? ?? ?? ? "timezone_offset": "+08:00"

*? ?? ?? ?? ?},

*? ?? ?? ?? ?"now": {

*? ?? ?? ?? ?? ? "text": "多云",

*? ?? ?? ?? ?? ? "code": "4",

*? ?? ?? ?? ?? ? "temperature": "23"

*? ?? ?? ?? ?},

*? ?? ?? ?? ?"last_update": "2017-09-13T09:51:00+08:00"

*? ?? ???}

bool parseUserData(char* content, struct UserData* userData) {

//? ? -- 根據我們需要解析的數據來計算JSON緩沖區最佳大小

//? ?如果你使用StaticJsonBuffer時才需要

//? ? const size_t BUFFER_SIZE = 1024;

//? ?在堆棧上分配一個臨時內存池

//? ? StaticJsonBuffer jsonBuffer;

//? ? -- 如果堆棧的內存池太大，使用 DynamicJsonBuffer jsonBuffer 代替

??DynamicJsonBuffer jsonBuffer;

??JsonObject& root = jsonBuffer.parseObject(content);

??if (!root.success()) {

? ? Serial.println("JSON parsing failed!");

? ? return false;

??}

??//復制我們感興趣的字符串

??strcpy(userData->city, root["results"][0]["location"]["name"]);

??strcpy(userData->weather, root["results"][0]["now"]["text"]);

??strcpy(userData->temp, root["results"][0]["now"]["temperature"]);

??strcpy(userData->udate, root["results"][0]["last_update"]);

??//??-- 這不是強制復制，你可以使用指針，因為他們是指向“內容”緩沖區內，所以你需要確保

??//? ?當你讀取字符串時它仍在內存中

??return true;

}

// 打印從JSON中提取的數據

void printUserData( struct UserData* userData) {

??Serial.println("Print parsed data :");

??display.print("City: ",0,0);

??display.print(userData->city,0,6);

??display.print("Weat: ",2,0);

??display.print(userData->weather,2,6);

??display.print("Temp: ",4,0);

??display.print(userData->temp,4,6);

// display.print("Last Updata : ",7,2);

display.print(userData->udate,6,0);

// display.print("\r\n");

delay(4*1000);

}

// 關閉與HTTP服務器連接

void stopConnect() {

??Serial.println("Disconnect");

??client.stop();

}

void clrEsp8266ResponseBuffer(void){

? ? memset(response, 0, MAX_CONTENT_SIZE);? ?? ?//清空

}

轉載地址：http://bbs.doit.am/forum.php?mod=viewthread&tid=442&extra=

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频

如何用ESP8266做一個天氣預報

如何用ESP8266做一個天氣預報

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如何用ESP8266做一個天氣預報

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