#include <DHT.h>#include <ESP8266WiFi.h>String apiKey = "apiKey"; // thingspeak API key, const char* ssid = "wifi name";const char* password = "wifi password"; const char* server = "api.thingspeak.com";#define DHTPIN D1#define DHTTYPE DHT11 DHT dht(DHTPIN, DHTTYPE);WiFiClient client; void setup() { Serial.begin(115200); delay(10); dht.begin(); WiFi.begin(ssid, password); Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected");}void loop() { float h = dht.readHumidity(); float t = dht.readTemperature(); if (isnan(h) || isnan(t)) { Serial.println("Failed to read from DHT sensor!"); return; } if (client.connect(server,80)) { String url = "/update?api_key="+ apiKey ; url += "&field1=" + (String)t; url += "&field2=" + (String)h; client.print(String("GET ") + url + " HTTP/1.1\r\n" + "Host: " + server + "\r\n" + "Connection: close\r\n\r\n"); Serial.print("Temp: "); Serial.print(t); Serial.print(" *C and Humidity: "); Serial.print(h); Serial.println("% "); } client.stop(); Serial.print("Waiting..."); delay(20000); // thingspeak needs minimum 15 sec delay between updates}
