Cảm biến nhiệt độ ẩm DHT11 với ESP8266 và ứng dụng BLYNK
1. Chuẩn bị: + NodeMcu ESP8266 + DHT11 Temperature Sensor + BreadBoard + Jumpers 2. Kết nối: 3. Code Blynk: //www.youtube.com/c/nnchau //Cảm biến nhiệt, độ ẩm DHT11 /************************************************************** * App project setup: * Value Display widget attached to V5 * Value Display widget attached to V6 * **************************************************************/ #define BLYNK_PRINT Serial #include <SPI.h> #include <ESP8266WiFi.h> #include <BlynkSimpleEsp8266.h> #include <SimpleTimer.h> #include <DHT.h> // You should get Auth Token in the Blynk App. // Go to the Project Settings (nut icon). char auth[] = ""; //Enter the Auth code which was send by Blink // Your WiFi credentials. // Set password to "" for open networks. char ssid[] = ""; //Enter your WIFI Name char pass[] = ""; //Enter your WIFI Password #define DHTPIN 2 // Digital pin 4 // Un