Grove - Temperature&Humidity Sensor (High-Accuracy &Mini) v1.0

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.

Specifications

• 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

Platforms Supported

Applications

• Industrial HVAC/R
• Thermostats/humidistats
• Micro-environments/data centers

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");
}


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);
}

Upload it into your Arduino board and open the serial monitor to observe the temperature and relative humidity information of the environment.

Resources

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

Help us make it better

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