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Table of Contents

 

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1. Component list

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  1. Arduino UNO board (http://arduino.cc/en/Main/arduinoBoardUno)
  2. Arduino Ethernet shield (http://arduino.cc/en/Main/ArduinoEthernetShield)
  3. DHT11/22 temperature/Humidity sensor (http://www.adafruit.com/products/386)
  4. 10k resister.

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2. Overall idea

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We are going to introduce you how to use Arduino hardware to monitor temperature and humidity using some standard sensors and GadgetKeeper with event/trigger feature. Assume you need to monitor the temperature and humidity level in a remote location(may be in side a server room) and also need to receive notification emails/alerts if the per-defiened threshold range is exceeded. Then you can simply follow this tutorial and implement your own reliable solution with the support of GadgetKeeper. Basically the arduino will continuously monitor the temperature and humidity with GHT11/22 sensor connected to it and send those readings to GadgetKeeper periodically (this updating frequency can be defined on the given sample code). Threshold levels and email ids can be configured in GadgetKeeper triggers. Also the trigger script can be modified to send hierarchical alerts to different mail ids. For an example, if we consider the temperature change event in a server room, following actions can be defined on trigger script.

  • If the temperature exceeds the threshold upper level, then send alert to,
       1) Server room administrator and
       2) A/C maintenance engineer.
  • If the temperature going below the lower threshold level, then send notification to,
       1) Server room administrator and
       2) Heater system maintenance engineer.

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3. Prepare Arduino hardware

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Follow step 1 3 and 2 4 of Arduino Weather Station tutorial to prepare Arduino hardware.

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