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64 lines
2.5 KiB
Arduino
64 lines
2.5 KiB
Arduino
/*
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*******************************************************************************
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* Copyright (c) 2023 by M5Stack
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* Equipped with M5Core sample source code
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* 配套 M5Core 示例源代码
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* Visit for more information: https://docs.m5stack.com/en/core/gray
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* 获取更多资料请访问: https://docs.m5stack.com/zh_CN/core/gray
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*
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* Describe: BasicHTTPClient.
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* Date: 2021/8/4
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******************************************************************************
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*/
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#include <Arduino.h>
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#include <HTTPClient.h>
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#include <M5Stack.h>
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#include <WiFi.h>
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#include <WiFiMulti.h>
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WiFiMulti wifiMulti;
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HTTPClient http;
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void setup() {
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M5.begin(); // Init M5Core. 初始化 M5Core
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M5.Power.begin(); // Init power 初始化电源模块
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wifiMulti.addAP(
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"M5-",
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"Of"); // Storage wifi configuration information. 存储wifi配置信息
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M5.Lcd.print("\nConnecting Wifi...\n"); // print format output string on
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// lcd. 串口格式化输出字符串
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}
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void loop() {
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M5.Lcd.setCursor(0, 0); // Set the cursor at (0,0). 设置光标位于(0,0)处
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if ((wifiMulti.run() ==
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WL_CONNECTED)) { // wait for WiFi connection. 等待连接至wifi
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M5.Lcd.print("[HTTP] begin...\n");
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http.begin(
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"http://example.com/index.html"); // configure traged server and
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// url. 配置被跟踪的服务器和URL
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M5.Lcd.print("[HTTP] GET...\n");
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int httpCode = http.GET(); // start connection and send HTTP header.
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// 开始连接服务器并发送HTTP的标头
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if (httpCode >
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0) { // httpCode will be negative on error. 出错时httpCode将为负值
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M5.Lcd.printf("[HTTP] GET... code: %d\n", httpCode);
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if (httpCode ==
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HTTP_CODE_OK) { // file found at server. 在服务器上找到文件
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String payload = http.getString();
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M5.Lcd.println(payload); //打印在服务器上读取的文件. Print
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// files read on the server
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}
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} else {
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M5.Lcd.printf("[HTTP] GET... failed, error: %s\n",
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http.errorToString(httpCode).c_str());
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}
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http.end();
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} else {
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M5.Lcd.print("connect failed");
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}
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delay(5000);
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M5.Lcd.clear(); // clear the screen. 清除屏幕
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}
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