使用Firebase的ESP8266物联网平台

请注意，我是 Firebase 的新手，因此它们可能是应用程序中的内部错误。告诉我你是否发现了任何东西。

测试 DHT22

运行代码并构建电路：

电路

 

//Code
#include "DHT.h"
#define DHTPIN 6
DHT dht;
#define DHTTYPE DHT22     //Change this to any type of DHT Sensor you're Using!
DHT(DHTPIN, DHTTYPE);
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);                               //Starts serial
delay(5000);                                      //Waits before reading from sensor
Serial.println("DHT22 Temp. And Humi. Test");     //Prints the intro
}
void loop() {
// put your main code here, to run repeatedly:
dht.read11(DHTPIN);                             //Reads from the sensor
Serial.println("Humi. ---------- ");            //Prints humidity
Serial.print(DHT.humidity);                       //Prints humidity
Serial.print("%         ");                     //Marks the humidity as %
Serial.print("Temp. ------------ ");            //Prints temperature           
Serial.print(DHT.temperature);                  //Prints temperature
Serial.print("℃");                              //Marks the temperature unit
Serial.println();
Serial.print("***********************************");
Serial.println)
delay(2000);   //fastest is onceevrey 2 seconds
}     //end loop

应该是印刷温度和湿度。如果不检查 buad 率。将其更改为 9600。如果仍然不起作用，则此代码将打印“Hello World！” evrey 第二个看看你是否有任何沟通：

//Code
void setup() {
Serial.begin(9600);
delay(5000);
}
void loop() {
Serial.println("Hello World!");
delay(1000);
}