SmartThermo - external thermometer for your Android deviceHow simple can an external thermometer for your Android device be? This solution only needs:1) an Android 2.2 or higher device having a stereo headphone output (and mono microphone input)2) a Do-It-Yourself (DIY) thermal sensor kit (see details on this DIY sensor below)
Features:-Temperature range: -50 to +180 °C (degree Celsius)-Precision: 1 °C (degree Celsius) between -10...+30 degree, otherwise 2°C-Fahrenheit or Celsius-For all Android 2.2 or higher devices having a stereo headphone output-Simple to build-No external power needed
What can you do with this external Android thermometer sensor?
Examples:-Send an SMS/email message if temperature falls below or above a certain value, or if power is lost, or if sensor is not working anymore
How to build the DIY sensor? -See http://grauonline.de/wordpress/?page_id=297 how to build your sensor. -For a DIY kit, see https://www.marotronics.de/index.php?a=120