seeed studio Grove - Temperature&Humidity Sensor User manual

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Grove - Temperature&Humidity Sensor (High-Accuracy & Mini)
User Manual
Version：1.0
Release date：2015/9/22
Wiki: http://www.seeedstudio.com/wiki/Grove_-_Tempture%26Humidity_Sensor_(High-
Accuracy_%26Mini)_v1.0
Bazaar: http://www.seeedstudio.com/depot/Grove-TemperatureHumidity-Sensor-
HighAccuracy-Mini-p-1921.html?cPath=25_125

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Document Revision History
Revision
Date
Author
Description
1.0
Sep 22, 2015
Loovee
Create file

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Contents
Document Revision History ········································································· 2
1. Introduction ······················································································· 2
2. Specification ······················································································ 3
3. Applications······················································································· 4
4. Demonstration ···················································································· 5
5. Resources·························································································· 7

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Disclaimer
For physical injuries and possessions loss caused by those reasons which are not related to
product quality, such as operating without following manual guide, natural disasters or force
majeure, we take no responsibility for that.
Under the supervision of Seeed Technology Inc., this manual has been compiled and published
which covered the latest product description and specification. The content of this manual is
subject to change without notice.
Copyright
The design of this product (including software) and its accessories is under tutelage of laws. Any
action to violate relevant right of our product will be penalized through law. Please consciously
observe relevant local laws in the use of this product.

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1. Introduction
This is a multifunctional sensor that gives you temperature and relative humidity information at the
same time. It utilizes a TH02 sensor that can meet measurement needs of general purposes. It
provides reliable readings when environment humidity condition in between 0-80% RH, and
temperature condition in between 0-70°C, covering needs in most home and daily applications
that don't contain extreme conditions.

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2. Specification
Wide operating voltage range: (3.3V ~ 5V)
Low Power Consumption: 350 µA during RH conversion
0 to 100% RH operating range
Measuring Range:
Humidity: 0% - 80% RH
Temperature: 0 ~ 70 °C
Accuracy
Humidity: ±4.5% RH
Temperature: ±0.5°C
I2C host interface
Excellent long term stability

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3. Applications
Industrial HVAC/R
Thermostats/humidistats
Micro-environments/data centers

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4. Demonstration
This demo is going to show you how to read temperature and humidity information from this Grove
- Temperature&Humidity Sensor (High-Accuracy &Mini) Sensor.
The Temperature and Humidity sensor is connecting to analog port I2C of Grove - Base Shield.
Download Grove_Temper_Humidity_TH02 library and install the library into Arduino
libraries.
/*
* Demo name : TH02_dev demo
* Usage : DIGITAL I2C HUMIDITY AND TEMPERATURE SENSOR
* Author : Oliver Wang from Seeed Studio
* Version : V0.1
*/
#include <TH02_dev.h>
#include "Arduino.h"
#include "Wire.h"
void setup()
{
Serial.begin(9600); // start serial for output
Serial.println("****TH02_dev demo by seeed studio****\n");
/* Power up,delay 150ms,until voltage is stable */
delay(150);
/* Reset HP20x_dev */
TH02.begin();
delay(100);
/* Determine TH02_dev is available or not */
Serial.println("TH02_dev is available.\n");

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}
void loop()
{
float temper = TH02.ReadTemperature();
Serial.println("Temperature: ");
Serial.print(temper);
Serial.println("C\r\n");
float humidity = TH02.ReadHumidity();
Serial.println("Humidity: ");
Serial.print(humidity);
Serial.println("%\r\n");
delay(1000);
}
Note:
Upload it into your Arduino board and open the serial monitor to observe the temperature and
relative humidity information of the environment

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5. Resources
Grove - Temperature&Humidity Sensor (High-Accuracy & Mini) V1.0 sch
pcb
TH02_SENSOR.pdf
Grove_Temper_Humidity_TH02 library