The TFT LCD screen is a great way to detach your computer, and have the Arduino relay information that you need to know onto the LCD. A great part of the LCD is that it has a built in microSD card socket. You can store images on the microSD card socket, and even some text!
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Step 1: Parts & Tools
Arduino UNO (Amazon, $22)
Arduino TFT LCD Screen (Arduino Store, ~$28)
ArduSensor Pot (Qtechknow, $8)
Half Sized Breadboard (Amazon, $5.50)
microSD Card 2GB (optional, Amazon, ~$6)
microSD Card Adapter & USB SD card reader
Step 2: TFT LCD Basics
LCDs, or liquid crystal displays, are easy to use with your Arduino. They are a very simple ways of telling the user data from the Arduino. Standard 16x2 character LCDs are found in grocery stores, when the display tells you what you bought as the cashier scans each item, and how much it costs.
Step 3: Displaying Instructables Logo
Next, open up the Arduino IDE. You'll need Arduino 1.0.5 or better to run the sketches. Open up the InstructablesTFT example.
Hook up the circuit above from the Arduino TFT LCD to your Arduino UNO.
Then, upload the sketch. After you open the Serial Monitor, the LCD should have the Instructables Logo on it!
Step 4: Sensor Readings
This sketch will gather the reading from the ArduSensor Pot, and then relay it onto the TFT LCD screen 10 times per second. This is a great way to display data without a computer.
Step 5: Reading the SD Card
Open up the CardInfo sketch from the Arduino program; File>Examples>SD>CardInfo. Upload this to your Arduino, and then open the serial monitor in the Arduino program.
You should see all of the information of your microSD card pop up!!! These numbers should be how much memory is in your SD card, what files are in it, etc.
Step 6: Finished!
If you make a project, please post it in the comments!