Sensors SHT35, SHT31 and SHT30

Arduino > SHT3x > Senserion_SHT30_SHT31_SHT35.jpg

Library: arduino-sht (github)

Connect

Arduino > SHT3x > Senserion_SHT3x_Sensors_UNO-R3.jpg

#include <Wire.h>

#include <SHTSensor.h>

SHTSensor sht;

void setup() {
  // put your setup code here, to run once:

  Wire.begin();
  Serial.begin(9600);
  delay(1000); // let serial console settle

  if (sht.init()) {
      Serial.print("Sensor Senserion SHT3X");
      Serial.print("\n\n");
  } else {
      Serial.print("init(): failed\n");
  }
  sht.setAccuracy(SHTSensor::SHT_ACCURACY_HIGH); // only supported by SHT3x

}

void loop() {
  // put your main code here, to run repeatedly:

  if (sht.readSample()) {
      Serial.print("  T:  ");
      Serial.print(sht.getTemperature(), 2);
      Serial.print("  ");
      Serial.print("  RH: ");
      Serial.print(sht.getHumidity(), 2);
      Serial.print("\n");
  } else {
      Serial.print("Error in readSample()\n");
  }

  delay(1000);
}

Test Results

Quick Room temperature overview

(single sensor connected. one by one)

SHT_ACCURACY_HIGH

SHT35 (1)

SHT35 (2)

SHT31 (1)

SHT31 (2)

SHT30 (1)

SHT30 (2)

T: 26.71 RH: 28.11
T: 26.71 RH: 27.93
T: 26.71 RH: 27.74
T: 26.70 RH: 27.71
T: 26.74 RH: 27.59
T: 26.71 RH: 27.52
T: 26.71 RH: 27.53
T: 26.71 RH: 27.58
T: 26.74 RH: 27.62
T: 26.71 RH: 27.69
T: 26.73 RH: 27.76
T: 26.71 RH: 27.77
T: 26.74 RH: 27.77
T: 26.73 RH: 28.05
T: 26.73 RH: 28.32
T: 26.74 RH: 28.32
T: 26.70 RH: 28.07
T: 26.70 RH: 27.90
T: 26.71 RH: 27.71
T: 26.67 RH: 27.61
T: 26.68 RH: 27.57
T: 26.68 RH: 27.47
T: 26.71 RH: 27.49
T: 26.71 RH: 27.69
T: 26.70 RH: 27.93
T: 26.68 RH: 28.06
T: 26.71 RH: 28.32
T: 26.73 RH: 29.01
T: 26.70 RH: 29.68
T: 26.68 RH: 29.52
T: 26.67 RH: 29.10
T: 26.70 RH: 28.64

T: 26.92 RH: 27.30
T: 26.89 RH: 27.34
T: 26.89 RH: 27.41
T: 26.89 RH: 27.43
T: 26.89 RH: 27.95
T: 26.89 RH: 28.89
T: 26.87 RH: 29.58
T: 26.87 RH: 29.95
T: 26.86 RH: 30.06
T: 26.89 RH: 29.98
T: 26.86 RH: 29.82
T: 26.89 RH: 29.64
T: 26.87 RH: 29.24
T: 26.87 RH: 29.05
T: 26.87 RH: 28.78
T: 26.85 RH: 28.56
T: 26.85 RH: 28.24
T: 26.83 RH: 28.00
T: 26.82 RH: 27.74
T: 26.82 RH: 27.59
T: 26.82 RH: 27.52
T: 26.83 RH: 27.38
T: 26.83 RH: 27.38
T: 26.82 RH: 27.28
T: 26.81 RH: 27.22
T: 26.82 RH: 27.14
T: 26.81 RH: 27.18
T: 26.81 RH: 27.15
T: 26.81 RH: 27.11
T: 26.82 RH: 27.14
T: 26.82 RH: 27.36
T: 26.85 RH: 27.52

T: 26.89 RH: 31.81
T: 26.89 RH: 31.57
T: 26.90 RH: 31.43
T: 26.89 RH: 31.30
T: 26.90 RH: 31.34
T: 26.89 RH: 31.33
T: 26.89 RH: 31.22
T: 26.86 RH: 30.97
T: 26.89 RH: 30.76
T: 26.90 RH: 30.59
T: 26.89 RH: 30.36
T: 26.87 RH: 30.30
T: 26.87 RH: 30.18
T: 26.85 RH: 30.13
T: 26.86 RH: 30.08
T: 26.85 RH: 30.02
T: 26.86 RH: 29.98
T: 26.86 RH: 29.96
T: 26.85 RH: 29.95
T: 26.83 RH: 29.87
T: 26.83 RH: 29.90
T: 26.86 RH: 29.91
T: 26.83 RH: 29.93
T: 26.83 RH: 29.95
T: 26.83 RH: 29.87
T: 26.85 RH: 29.98
T: 26.82 RH: 30.00
T: 26.82 RH: 30.00
T: 26.82 RH: 30.00
T: 26.81 RH: 30.07
T: 26.81 RH: 30.30
T: 26.81 RH: 31.11

T: 26.77 RH: 31.09
T: 26.80 RH: 30.98
T: 26.79 RH: 30.80
T: 26.79 RH: 30.64
T: 26.77 RH: 30.50
T: 26.79 RH: 30.44
T: 26.79 RH: 30.40
T: 26.76 RH: 30.37
T: 26.80 RH: 30.32
T: 26.79 RH: 30.27
T: 26.77 RH: 30.27
T: 26.79 RH: 30.32
T: 26.76 RH: 30.20
T: 26.76 RH: 30.10
T: 26.79 RH: 29.96
T: 26.77 RH: 29.91
T: 26.77 RH: 29.92
T: 26.79 RH: 29.89
T: 26.76 RH: 29.92
T: 26.76 RH: 29.92
T: 26.77 RH: 29.93
T: 26.76 RH: 30.00
T: 26.77 RH: 29.99
T: 26.74 RH: 29.96
T: 26.74 RH: 29.90
T: 26.74 RH: 29.89
T: 26.74 RH: 29.86
T: 26.76 RH: 29.86
T: 26.76 RH: 29.86
T: 26.77 RH: 29.83
T: 26.74 RH: 29.89
T: 26.74 RH: 29.83

T: 27.01 RH: 32.36
T: 26.99 RH: 31.79
T: 26.99 RH: 31.22
T: 27.01 RH: 30.73
T: 26.96 RH: 30.30
T: 26.99 RH: 29.94
T: 26.99 RH: 29.66
T: 26.96 RH: 29.48
T: 26.98 RH: 29.26
T: 26.99 RH: 29.13
T: 26.99 RH: 29.14
T: 26.99 RH: 29.09
T: 26.96 RH: 28.91
T: 26.95 RH: 28.84
T: 26.95 RH: 28.80
T: 26.96 RH: 28.73
T: 26.95 RH: 28.64
T: 26.91 RH: 28.59
T: 26.92 RH: 28.62
T: 26.95 RH: 28.64
T: 26.93 RH: 28.64
T: 26.91 RH: 28.65
T: 26.93 RH: 28.70
T: 26.93 RH: 28.73
T: 26.92 RH: 28.69
T: 26.92 RH: 28.74
T: 26.93 RH: 28.70
T: 26.92 RH: 28.69
T: 26.92 RH: 28.73
T: 26.91 RH: 28.71
T: 26.88 RH: 28.72
T: 26.91 RH: 28.72

T: 26.90 RH: 31.81
T: 26.88 RH: 31.31
T: 26.90 RH: 30.94
T: 26.91 RH: 30.55
T: 26.90 RH: 30.23
T: 26.88 RH: 30.06
T: 26.90 RH: 29.82
T: 26.87 RH: 29.61
T: 26.90 RH: 29.35
T: 26.88 RH: 29.23
T: 26.88 RH: 29.26
T: 26.88 RH: 29.11
T: 26.87 RH: 28.96
T: 26.87 RH: 28.96
T: 26.85 RH: 28.90
T: 26.87 RH: 28.90
T: 26.85 RH: 28.93
T: 26.87 RH: 29.01
T: 26.84 RH: 29.02
T: 26.88 RH: 29.05
T: 26.84 RH: 29.09
T: 26.85 RH: 28.99
T: 26.83 RH: 28.93
T: 26.85 RH: 29.00
T: 26.84 RH: 28.97
T: 26.84 RH: 28.88
T: 26.83 RH: 28.93
T: 26.83 RH: 28.94
T: 26.81 RH: 28.97
T: 26.81 RH: 28.91
T: 26.81 RH: 29.00
T: 26.80 RH: 29.09

Mild humidity test

SHT35 (1)

SHT35 (2)

SHT31 (1)

SHT31 (2)

SHT30 (1)

SHT30 (2)

T: 26.11 RH: 50.23
T: 26.10 RH: 50.14
T: 26.11 RH: 50.08
T: 26.08 RH: 50.03
T: 26.10 RH: 49.95
T: 26.08 RH: 49.83
T: 26.08 RH: 49.75
T: 26.08 RH: 49.68
T: 26.08 RH: 49.64
T: 26.07 RH: 49.68
T: 26.10 RH: 49.73
T: 26.07 RH: 49.75
T: 26.08 RH: 49.77
T: 26.07 RH: 49.83
T: 26.05 RH: 49.77
T: 26.05 RH: 49.79
T: 26.07 RH: 49.79
T: 26.07 RH: 49.76
T: 26.04 RH: 49.71
T: 26.05 RH: 49.71
T: 26.05 RH: 49.73
T: 26.07 RH: 49.77
T: 26.05 RH: 49.80
T: 26.05 RH: 49.86
T: 26.05 RH: 49.91
T: 26.05 RH: 49.95
T: 26.05 RH: 50.00
T: 26.05 RH: 50.00
T: 26.05 RH: 50.05
T: 26.05 RH: 50.05
T: 26.04 RH: 50.13
T: 26.04 RH: 50.15

T: 26.06 RH: 48.88
T: 26.06 RH: 48.86
T: 26.06 RH: 48.82
T: 26.06 RH: 48.84
T: 26.03 RH: 48.91
T: 26.01 RH: 48.95
T: 26.04 RH: 49.08
T: 26.03 RH: 49.14
T: 26.04 RH: 49.21
T: 26.03 RH: 49.25
T: 26.03 RH: 49.26
T: 26.03 RH: 49.26
T: 26.04 RH: 49.28
T: 26.06 RH: 49.36
T: 26.03 RH: 49.35
T: 26.01 RH: 49.32
T: 26.03 RH: 49.31
T: 26.03 RH: 49.32
T: 26.01 RH: 49.31
T: 26.04 RH: 49.34
T: 26.03 RH: 49.35
T: 26.03 RH: 49.30
T: 26.04 RH: 49.35
T: 26.01 RH: 49.38
T: 26.01 RH: 49.37
T: 26.01 RH: 49.40
T: 26.03 RH: 49.37
T: 26.01 RH: 49.41
T: 26.00 RH: 49.42
T: 26.00 RH: 49.55
T: 26.00 RH: 49.64
T: 26.00 RH: 49.64

T: 26.15 RH: 54.96
T: 26.14 RH: 54.53
T: 26.14 RH: 54.21
T: 26.14 RH: 53.99
T: 26.14 RH: 53.85
T: 26.15 RH: 53.72
T: 26.15 RH: 53.57
T: 26.15 RH: 53.56
T: 26.15 RH: 53.41
T: 26.14 RH: 53.40
T: 26.15 RH: 53.30
T: 26.14 RH: 53.26
T: 26.15 RH: 53.21
T: 26.15 RH: 53.17
T: 26.14 RH: 53.14
T: 26.12 RH: 53.11
T: 26.14 RH: 53.06
T: 26.15 RH: 53.01
T: 26.12 RH: 52.92
T: 26.11 RH: 52.87
T: 26.15 RH: 52.83
T: 26.12 RH: 52.76
T: 26.12 RH: 52.76
T: 26.12 RH: 52.72
T: 26.11 RH: 52.69
T: 26.11 RH: 52.66
T: 26.14 RH: 52.63
T: 26.11 RH: 52.59
T: 26.11 RH: 52.59
T: 26.09 RH: 52.55
T: 26.12 RH: 52.54
T: 26.11 RH: 52.58

T: 26.12 RH: 51.24
T: 26.10 RH: 51.39
T: 26.12 RH: 51.97
T: 26.10 RH: 52.60
T: 26.13 RH: 53.19
T: 26.09 RH: 53.42
T: 26.10 RH: 53.21
T: 26.12 RH: 52.90
T: 26.09 RH: 52.58
T: 26.13 RH: 52.33
T: 26.10 RH: 52.16
T: 26.10 RH: 52.02
T: 26.09 RH: 51.86
T: 26.09 RH: 51.79
T: 26.12 RH: 51.64
T: 26.10 RH: 51.63
T: 26.09 RH: 51.54
T: 26.10 RH: 51.45
T: 26.10 RH: 51.37
T: 26.12 RH: 51.36
T: 26.12 RH: 51.26
T: 26.09 RH: 51.23
T: 26.09 RH: 51.19
T: 26.09 RH: 51.13
T: 26.09 RH: 51.14
T: 26.09 RH: 51.12
T: 26.09 RH: 51.17
T: 26.07 RH: 51.21
T: 26.10 RH: 51.24
T: 26.10 RH: 51.29
T: 26.09 RH: 51.28
T: 26.07 RH: 51.30

T: 26.13 RH: 50.81
T: 26.11 RH: 50.85
T: 26.08 RH: 50.88
T: 26.10 RH: 50.89
T: 26.11 RH: 50.87
T: 26.11 RH: 50.88
T: 26.10 RH: 50.92
T: 26.11 RH: 50.87
T: 26.11 RH: 50.85
T: 26.10 RH: 50.87
T: 26.10 RH: 50.81
T: 26.10 RH: 50.86
T: 26.10 RH: 50.93
T: 26.10 RH: 50.86
T: 26.08 RH: 50.91
T: 26.10 RH: 50.89
T: 26.10 RH: 50.93
T: 26.08 RH: 50.94
T: 26.10 RH: 50.99
T: 26.08 RH: 51.01
T: 26.10 RH: 50.92
T: 26.08 RH: 50.87
T: 26.11 RH: 50.87
T: 26.07 RH: 50.89
T: 26.08 RH: 50.84
T: 26.11 RH: 50.83
T: 26.07 RH: 50.84
T: 26.10 RH: 50.83
T: 26.08 RH: 50.78
T: 26.07 RH: 50.74
T: 26.07 RH: 50.76
T: 26.08 RH: 50.70

T: 25.92 RH: 51.55
T: 25.91 RH: 51.67
T: 25.89 RH: 51.68
T: 25.89 RH: 51.69
T: 25.89 RH: 51.62
T: 25.91 RH: 51.56
T: 25.91 RH: 51.51
T: 25.92 RH: 51.45
T: 25.91 RH: 51.41
T: 25.91 RH: 51.40
T: 25.91 RH: 51.31
T: 25.91 RH: 51.21
T: 25.89 RH: 51.11
T: 25.89 RH: 51.03
T: 25.91 RH: 51.02
T: 25.91 RH: 51.09
T: 25.89 RH: 51.22
T: 25.91 RH: 51.33
T: 25.89 RH: 51.43
T: 25.92 RH: 51.49
T: 25.92 RH: 51.57
T: 25.94 RH: 51.65
T: 25.92 RH: 51.65
T: 25.95 RH: 51.64
T: 25.95 RH: 51.64
T: 25.94 RH: 51.65
T: 25.92 RH: 51.59
T: 25.92 RH: 51.46
T: 25.96 RH: 51.44
T: 25.95 RH: 51.58
T: 25.95 RH: 51.92
T: 25.95 RH: 52.09