Thermometer - Measure Temperature via the Ear Phone Jack and Arduino using FSK

This is a thermometer app that works using the earphone jack connection (microphone)!

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For this app to work you will need to assemble an Arduino board (see the instructions at the end of this page)

This can..

- Measure temperature via the Arduino board
- Gives temperature in Celsius as well as Fahrenheit
- Log temperatures
- Add notes
- Calibrate
- Manual data entry mode

Hardware requirements:
1) Arduino Board
2) Audio Jack Modem for iPhone and Android
3) 3.5mm Audio Jack Connection Cable for iPhone 3G/3GS/4 (90CM-Length)
4) Connecting wires
5) LM35 Temperature Sensor
6) 100 K Resistor

See the details at http://schogini.com/tutorials/thermometer