SHT35

In this article we look at the SHT35 humidity sensor, this is very similar to the SHT30 and SHT31 sensors in the same family but is a more expensive one.

There is an Arduino based library as well so we will use the Arduino IDE and connect this up to an ESP32 board. This is the particular sensor I used

First of all the sensor

The digital SHT3x humidity sensor series takes sensor technology to a new level. As the successor of the SHT2x series it sets the industry standard in humidity sensing. The SHT3x humidity sensor series consists of a low-cost version with the SHT30 humidity sensor, a standard version with the SHT31 humidity sensor, and a high-end version with the SHT35 humidity sensor. Automotive grade versions are also available.

The SHT3x humidity sensor series combines multiple functions and various interfaces (I²C, analog voltage output) with a applications-friendly, very wide operating voltage range (2.15 to 5.5 V). The SHT3x humidity sensor is available in both large and small volumes.

Parts Required

 

Schematic/Connection

Code Example

You need the library from – https://github.com/Risele/SHT3x

There are many examples to choose from

[codesyntax lang=”cpp”]

#include <SHT3x.h>
SHT3x Sensor;
void setup() 
{
  
  Serial.begin(19200);
  Sensor.Begin();
}

void loop() 
{

  Sensor.UpdateData();
  Serial.print("Temperature: ");
  Serial.print(Sensor.GetTemperature());
  Serial.write("\xC2\xB0"); //The Degree symbol
  Serial.println("C");
  Serial.print("Humidity: ");
  Serial.print(Sensor.GetRelHumidity());
  Serial.println("%");

  delay(500);
}

[/codesyntax]

 

Output

Open the serial monitor and you should see something like this

Temperature: 27.65°C
Humidity: 58.01%
Temperature: 28.30°C
Humidity: 59.60%
Temperature: 28.86°C
Humidity: 60.85%
Temperature: 29.38°C
Humidity: 61.74%
Temperature: 29.36°C
Humidity: 62.14%

Links

Documents