SEN0227

SEN0227 Datasheet

SHT20 I2C Temperature & Humidity Sensor Waterproof Probe SKU SEN0227

Part	Datasheet
SEN0227	SEN0227 (pdf)

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SHT20 I2C Temperature & Humidity Sensor Waterproof Probe SKU SEN0227 Introduction This is a SHT20 I2C temperature & humidity sensor with waterproof probe. It comes with the 4C SHT20 temperature & humidity sensor chip, and the probe has gone through dual waterproof protection. The SHT20 I2C temperature & humidity sensor adopt Sensirion new technique. Besides the capacitive type humidity sensor and the band gap temperature sensor, the chip contains an amplifier, A/D converter, OTP memory and a digital processing unit. To compare with early SHT1x series and SHT7x series, SHT20 shows better reliability and long-term stability. It can measure surrounding environment temperature and relative air humidity precisely. The Arduino SHT20 waterproof temperature & humidity sensor adopts dual waterproof protection. The inner PCB has perfusion and encapsulation protection, and the probe enclosure is made of PE waterproof materials. This is a special waterproof breathable material that allows water molecules to seep in, blocking water droplets from seeping in. The sensor won't be damaged even if it is submerged in water for a long time. There is a built-in 10k Pull-up resistor and 0.1uf filter capacitor, so It can be used directly with the microcontroller such as Arduino. Recommend DFRobot Gravity 4Pin Sensor Adapter, it is quite convenient.’ Specification • Operating Voltage 3.3V/5V • Communication Interface I2C / IIC • Protection Class waterproof anti-condensation • RH Response Time 8s tau63% • Accuracy ±3% RH / • Measuring Range 0-100% RH / -40-125 • Dimension 73mm * 17mm / * inches • Weight 44g Board Overview Num 1 2 3 4 Label Red Green Black White Description VCC GND SDA SCL Tutorial In this section, we'll use Arduino to drive SHT20 I2C Temperature & Humidity Sensor Waterproof Probe Requirements • Hardware DFRduino UNO or similar x 1 SHT20 I2C Temperature & Humidity Sensor M-M/F-M/F-F Jumper wires • Software • Arduino IDE, Click to Download Arduino IDE from Connection Diagram Arduino SHT20 Temperature & Humidity Sensor Connection Sample Code Download the DFRobot Arduino SHT20 library How to install Libraries in Arduino IDE * DFRobot_SHT20_test.ino * DFRobot's SHT20 Humidity And Temperature Sensor Module This example demonstrates how to read the user registers to display resolution and other settings. * ure. Uses the SHT20 library to display the current humidity and temperat Open serial monitor at 9600 baud to see readings. Errors 998 if not sensor is detected. Error 999 if CRC is bad. * Hardware Connections: * -VCC = 3.3V * -GND = GND * -SDA = A4 use inline 330 ohm resistor if your board is 5V * -SCL = A5 use inline 330 ohm resistor if your board is 5V */ #include <Wire.h> #include "DFRobot_SHT20.h" DFRobot_SHT20 sht20; void setup Serial.begin 9600 Serial.println "SHT20 Example!" sht20.initSHT20 delay 100 sht20.checkSHT20 ; // Init SHT20 Sensor // Check SHT20 Sensor void loop float humd = sht20.readHumidity float temp = sht20.readTemperature Serial.print "Time:" Serial.print millis Serial.print " Temperature:" Serial.print temp, 1 Serial.print "C" Serial.print " Humidity:" Serial.print humd, 1 Serial.print "%" Serial.println delay 1000 ; // Read Humidity // Read Temperature Expected Results Arduino SHT20 Serial port Result Q1. How to measure the soil moisture?. A. Soil moisture is defined as Get 1 kg soil samples, thoroughly dry it, the ratio between reduced weight water weight and 1 kg weight is soil moisture. It totally different to the air humidity.

PDF Datasheet Preview

SHT20 I2C Temperature & Humidity Sensor Waterproof Probe SKU SEN0227

Introduction

This is a SHT20 I2C temperature & humidity sensor with waterproof probe. It comes with the 4C SHT20 temperature & humidity sensor chip, and the probe has gone through dual waterproof protection. The SHT20 I2C temperature & humidity sensor adopt Sensirion new technique. Besides the capacitive type humidity sensor and the band gap temperature sensor, the chip contains an amplifier, A/D converter, OTP memory and a digital processing unit. To compare with early SHT1x series and SHT7x series, SHT20 shows better reliability and long-term stability. It can measure surrounding environment temperature and relative air humidity precisely. The Arduino SHT20 waterproof temperature & humidity sensor adopts dual waterproof protection. The inner PCB has perfusion and encapsulation protection, and the probe enclosure is made of PE waterproof materials. This is a special waterproof breathable material that allows water molecules to seep in, blocking water droplets from seeping in. The sensor won't be damaged even if it is submerged in water for a long time. There is a built-in 10k Pull-up resistor and 0.1uf filter capacitor, so It can be used directly with the microcontroller such as Arduino. Recommend DFRobot Gravity 4Pin Sensor Adapter, it is quite convenient.’

Specification
• Operating Voltage 3.3V/5V
• Communication Interface I2C / IIC
• Protection Class waterproof anti-condensation
• RH Response Time 8s tau63%
• Accuracy ±3% RH /
• Measuring Range 0-100% RH / -40-125
• Dimension 73mm * 17mm / * inches
• Weight 44g

Board Overview

Num 1 2 3 4

Label Red Green Black White

Description VCC GND SDA SCL

Tutorial

In this section, we'll use Arduino to drive SHT20 I2C Temperature & Humidity Sensor Waterproof Probe

Requirements
• Hardware DFRduino UNO or similar x 1 SHT20 I2C Temperature & Humidity Sensor M-M/F-M/F-F Jumper wires
• Software
• Arduino IDE, Click to Download Arduino IDE from

Connection Diagram

Arduino SHT20 Temperature & Humidity Sensor Connection

Sample Code

Download the DFRobot Arduino SHT20 library How to install Libraries in Arduino IDE
* DFRobot_SHT20_test.ino
* DFRobot's SHT20 Humidity And Temperature Sensor Module

This example demonstrates how to read the user registers to display
resolution and other settings.
* ure.

Uses the SHT20 library to display the current humidity and temperat

Open serial monitor at 9600 baud to see readings.

Errors 998 if not sensor is detected. Error 999 if CRC is bad.
* Hardware Connections:
* -VCC = 3.3V
* -GND = GND
* -SDA = A4 use inline 330 ohm resistor if your board is 5V * -SCL = A5 use inline 330 ohm resistor if your board is 5V */
#include <Wire.h> #include "DFRobot_SHT20.h"

DFRobot_SHT20 sht20;
void setup

Serial.begin 9600 Serial.println "SHT20 Example!" sht20.initSHT20 delay 100 sht20.checkSHT20 ;
// Init SHT20 Sensor // Check SHT20 Sensor
void loop
float humd = sht20.readHumidity float temp = sht20.readTemperature Serial.print "Time:" Serial.print millis Serial.print " Temperature:" Serial.print temp, 1 Serial.print "C" Serial.print " Humidity:" Serial.print humd, 1 Serial.print "%" Serial.println delay 1000 ;
// Read Humidity // Read Temperature

Expected Results

Arduino SHT20 Serial port Result

Q1. How to measure the soil moisture?. A. Soil moisture is defined as Get 1 kg soil samples, thoroughly dry it, the ratio between reduced weight water weight and 1 kg weight is soil moisture. It totally different to the air humidity.

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Datasheet ID: SEN0227 509123