Sparkfun Electronics SHT15 Hook-Up Manual

Humidity and temperature sensor

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SHT15 Humidity and Temperature Sensor

Hookup Guide

SHT15 Overview

The SHT15 is an easy to use, highly accurate, digital temperature and

humidity sensor. All you need is two lines for 2-wire communication, and

you'll have relative humidity and temperature readings to help you sense

the world around you!

Features you should know about this sensor:

• Operating Voltage: 2.4V min - 5.5V max

• 2 factory calibrated sensors for relative humidity & temperature

• Digital 2-wire interface (Not I C, but similar)

• Measurement range: 0-100% RH

• Absolute RH accuracy: +/- 2% RH (10...90% RH)

• Repeatability RH: +/- 0.1% RH

• Temp. accuracy: +/- 0.3°C @ 25°C

• Precise dewpoint calculation possible

• Fast response time

• Low power consumption (typ. 30 µW)

• Here's the datasheet

This sensor is ideal for environmental sensing and data logging and can be

used in applications ranging from a weather station to a humidor control

system.

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Summary of Contents for Sparkfun Electronics SHT15

Page 1 SHT15 Humidity and Temperature Sensor Hookup Guide SHT15 Overview The SHT15 is an easy to use, highly accurate, digital temperature and humidity sensor. All you need is two lines for 2-wire communication, and you’ll have relative humidity and temperature readings to help you sense...
Page 2 You can connect this sensor directly to the female headers on your Arduino like so… A SHT15 connected to a SparkFun RedBoard, using pins A4 and A5 as communication and pins A2 and A3 as power. Or, you can wire it up on a breadboard.
Page 3 RedBoard. 2-Wire Interface Please note that the SHT15 has a 2-wire interface that is similar to I C but is NOT I C. You may use the SDA and SCL lines to communicate with this sensor so long as they are connected to A4 and A5 on your Arduino or Arduino compatible board.
Page 4 Clone & Edit Download by sparkfun (https://codebender.cc/user/sparkfun?referrer=sparkfun) /**********************************************************  (https://codebende SHT15 Example Joel Bartlett @ SparkFun Electronics referrer=sparkfun) referrer=sparkfun) 16 Sept 2015 https://github.com/sparkfun/SparkFun_ISL29125_Breakout_Ardu This example shows how to get the temperature in F or C and Developed/Tested with: SparkFun RedBoard Arduino IDE 1.6.5...
Page 5 SHT1X Arduino Library and Example Luckily, there is an Arduino library and some example code to make using the SHT15 as easy as possible. Grab the SHT15 library for Arduino from the SHT15 GitHub Repository , or you can download the files directly from the button below.
Page 6 Page 6 of 7 /************************************************************* ***************** SHT15 Example Joel Bartlett @ SparkFun Electronics 16 Sept 2015 https://github.com/sparkfun/SparkFun_ISL29125_Breakout_Arduino _Library This example shows how to get the temperature in F or C and hu midity Developed/Tested with: SparkFun RedBoard Arduino IDE 1.6.5 Connections: >...
Page 7 Page 7 of 7 // Read values from the sensor tempC = sht15.readTemperatureC(); tempF = sht15.readTemperatureF(); humidity = sht15.readHumidity(); // void printOut() Serial.print(" Temp = "); Serial.print(tempF); Serial.print("F, "); Serial.print(tempC); Serial.println("C"); Serial.print(" Humidity = "); Serial.print(humidity); Serial.println("%"); Resources and Going Further You should now have a good idea of how to add humidity and temperature sensing into your next project.