常用传感器-温湿度传感器SHT30

news/2025/1/3 17:45:19/

SHT30温湿度传感器

基本信息

工作电压：2.4V-5.5V
通讯协议：IIC
湿度测量范围：0-100
温度测量范围：-40°-125°

引脚

VIN：电源正极
GND：电源负极
SCL：数据线
SDA：数据线

操作

1.加载库文件：ClosedCube_SHT31D

在这里插入图片描述
选择库文件：ClosedCube_SHT31D

2.连接esp mini d1和温湿度传感器

VIN和GND分别取主板5V电压
SCL和SDA分别接主板D3和D4引脚

3.刷入主板代码

//包含读取传感器数据的代码，引脚、地址等配置均在该文件
#include "sht30.h"void setup() {Serial.begin(115200);//sht30的开机配置函数sht30_setup();
}void loop() {//sht30的循环读取函数，内设读取间隔可自行在 sht30.h 文件中设置sht30();
}

//********sht30 温湿度传感器***************#include <Wire.h>
#include "ClosedCube_SHT31D.h"
ClosedCube_SHT31D sht3xd;// 配置引脚
const int SHT_SCL = D4; 
const int SHT_SDA = D3;const int SHT_ADDRESS = 0x44;//配置读取频率struct SHT_DATA{int8_t temperature = -99;int8_t humidity = -99;unsigned long sht30_last = 0;
const long sht30_interval = 1000; //每秒读取一次} sht_data;//开机函数
void sht30_setup() {//定义I2C通讯的引脚Wire.begin(SHT_SDA, SHT_SCL);//准备读取sht3x传感器sht3xd.begin(SHT_ADDRESS);if (sht3xd.periodicStart(SHT3XD_REPEATABILITY_HIGH, SHT3XD_FREQUENCY_10HZ) != SHT3XD_NO_ERROR){Serial.println("[ERROR] 读取sht30数据失败，可能是传感器没插好");}
}//保存结果到指定的数据结构，如果传感器断开，则尝试重载
void saveResult(SHT31D result) {if (result.error == SHT3XD_NO_ERROR) {sht_data.temperature = result.t;sht_data.humidity = result.rh;} else {  sht_data.temperature = -99;sht_data.humidity = -99;sht30_setup();}
}//循环体函数，放在loop中
void sht30() {unsigned long currentMillis = millis();if (currentMillis - sht_data.sht30_last >= sht_data.sht30_interval) {sht_data.sht30_last = currentMillis;saveResult(sht3xd.periodicFetchData());Serial.print("T:");Serial.print(sht_data.temperature);Serial.print(" H:");Serial.println(sht_data.humidity);}
}