SHT30 Temperature and Humidity Sensor

Module Source

Purchase Link: https://item.taobao.com/item.htm?spm=a1z09.2.0.0.204e2e8d2hPeAl&id=556043263770&_u=h2t4uge5cf4f
Baidu Netdisk Download Link:
https://pan.baidu.com/s/1kisMJspcV6Qdr1ye9ElOlQ

Specifications

Operating Voltage: 2.4-5.5V

Operating Current: 0.21500uA

Temperature Measurement Range: -40125°C

Temperature Measurement Accuracy: ±0.3°C

Humidity Measurement Range: 0~100%RH

Humidity Measurement Accuracy: ±2%RH

Output Method: IIC

Pin Count: 4 Pin

Hardware Connection

1. VCC: Connect to the 5V of the development board.
2. GND: Connect to the GND of the development board.
3. SCL (Clock Line): Connect to A5 (SCL) on the development board.
4. SDA (Data Line): Connect to A4 (SDA) on the development board.

Usage Method

Install Library

  To easily read data from the SHT30, we can use the existing Arduino library, the Adafruit_SHT31 library. First, install this library. You can do so via the Arduino IDE's Library Manager: open the Arduino IDE, go to Tools -> Manage Libraries, then search for SHT31 and install the Adafruit SHT31 library.

Enter the code:

#include <Wire.h>
#include <Adafruit_SHT31.h>

Adafruit_SHT31 sht31 = Adafruit_SHT31();

void setup() {
  Serial.begin(9600);

  if (!sht31.begin(0x44)) {   // 使用SHT30的默认I2C地址（请根据你的传感器检查地址是否匹配）
    Serial.println("Couldn't find SHT30");
    while (1) delay(1);
  }
}

void loop() {
  float temp = sht31.readTemperature();
  float hum = sht31.readHumidity();

  if (!isnan(temp)) {  // 检查读数是否有效
    Serial.print("Temp *C = "); Serial.println(temp);
  } else {
    Serial.println("Failed to read temperature");
  }

  if (!isnan(hum)) {  // 检查湿度读数是否有效
    Serial.print("Hum. % = "); Serial.println(hum);
  } else {
    Serial.println("Failed to read humidity");
  }

  delay(1000); // 等待1秒钟
}

Usage Testing