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| In my WG, my flatmates and I take turns buying the coffee grounds. Sometimes this becomes confusing, as there are three of us, and the person who is next in line to buy coffee is not necessarily aware that the coffee supply is low.
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| I'd like to develop a system that ensures that our WG is always supplied with enough coffee. Using Arduino and a photoresistor, I propose to install a sensor inside the coffee ground that will send a reminder SMS to the next person as soon as the coffee levels are low.
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| [[File:Coffee03.jpg|500px]]
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| <br>
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| [[File:Coffee04.jpg|500px]]
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| http://farm5.staticflickr.com/4053/4473164605_99c7a30b21.jpg
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| <br>
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| Above image source: Flickr user iDecrease
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| ===Setup Help===
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| [[../code#III Potentiometer (Arduino)|Photo Resistor Code Example (from class)]]
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| [http://www.sparkfun.com/Code/Cellular_Shield_Passthrough.zip Cellular Shield Passthrough]
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| [http://www.sparkfun.com/datasheets/CellularShield/SM5100B%20Datasheet.pdf Cellular Shield Datasheet]
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| ===Equipment===
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| * [http://www.sparkfun.com/products/9607 Cellular Shield]
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| * SIM card
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| * Antenna
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| * Arduino
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| * Photoresistor
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| * Coffee can
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| * Depleting coffee grounds
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| ===Tasks===
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| <ul>
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| <li>Create prototype coffee can with facilitated connection from Arduino / Cellular Sheild to photoresistor.</li>
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| <li>Conduct further research on the coding between Cellular Shield / Arduino. Experiment.</li>
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| </ul>
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