esp8266天气时钟arduino代码

以下是一个简单的 ESP8266 天气时钟的 Arduino 代码：

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <ArduinoJson.h>

// Replace with your network credentials
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

// Replace with your own API key, obtained from https://openweathermap.org/api
const char* apiKey = "your_API_key";
const char* city = "your_city_name";

const int UPDATE_INTERVAL = 60000; // Update interval in milliseconds

// OLED display settings
#define OLED_RESET 0
Adafruit_SSD1306 display(OLED_RESET);

String weatherDescription;
int currentTemp = 0;
int minTemp = 0;
int maxTemp = 0;
int humidity = 0;

void setup() {
  Serial.begin(115200);

  // Initialize the OLED display
  display.begin(SSD1306_SWITCHCAPVCC, 128, 64);
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setCursor(0,0);
  display.setTextSize(1);

  // Connect to Wi-Fi network
  WiFi.begin(ssid, password);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println();
  Serial.println("Connected to Wi-Fi");

  // Set up HTTP client
  HTTPClient http;

  // Make API request
  String url = "http://api.openweathermap.org/data/2.5/weather?q=" + String(city) + "&units=metric&appid=" + String(apiKey);
  http.begin(url);
  int httpCode = http.GET();
  if (httpCode > 0) {
    String payload = http.getString();
    Serial.println(payload);

    // Parse JSON response
    DynamicJsonDocument doc(1024);
    deserializeJson(doc, payload);

    weatherDescription = doc["weather"][0]["description"];
    currentTemp = doc["main"]["temp"];
    minTemp = doc["main"]["temp_min"];
    maxTemp = doc["main"]["temp_max"];
    humidity = doc["main"]["humidity"];
  } else {
    Serial.println("Error getting weather data");
  }

  // Set up update timer
  timer.setInterval(UPDATE_INTERVAL, updateWeather);
}

void loop() {
  // Update the display
  display.clearDisplay();
  display.setCursor(0,0);
  display.print("Weather in " + String(city));
  display.setCursor(0,10);
  display.print("Current temp: " + String(currentTemp) + "C");
  display.setCursor(0,20);
  display.print("Min temp: " + String(minTemp) + "C");
  display.setCursor(0,30);  
  display.print("Max temp: " + String(maxTemp) + "C");
  display.setCursor(0,40);
  display.print("Humidity: " + String(humidity) + "%");
  display.display();

  // Update the weather data
  timer.run();
}

void updateWeather() {
  // Set up HTTP client
  HTTPClient http;

  // Make API request
  String url = "http://api.openweathermap.org/data/2.5/weather?q=" + String(city) + "&units=metric&appid=" + String(apiKey);
  http.begin(url);
  int httpCode = http.GET();
  if (httpCode > 0) {
    String payload = http.getString();
    Serial.println(payload);

    // Parse JSON response
    DynamicJsonDocument doc(1024);
    deserializeJson(doc, payload);

    weatherDescription = doc["weather"][0]["description"];
    currentTemp = doc["main"]["temp"];
    minTemp = doc["main"]["temp_min"];
    maxTemp = doc["main"]["temp_max"];
    humidity = doc["main"]["humidity"];
  } else {
    Serial.println("Error getting weather data");
  }
}

这个代码使用了一个 OLED 显示屏来显示天气信息，使用了 OpenWeatherMap API 来获取天气数据。请注意，你需要将代码中的网络凭据和 API 密钥替换为你自己的凭据。也可以根据需要更改更新时间间隔。