Update 23.05.2016 – Using the SD card modul
In the first tutorial (see below), I described the display. Please, read this tutorial first, so you understand this part better.
This display has backside a SD card slot. Normally, this modul is not connected. To use it, you must solder 4 pins.
And now, be carefull! This pins works with 3.3V too! If you connect this to 5V (arduino pins directly) you destroy your SD card!
You must use the level converter! …
Here is the full page: QVGA Display 2.2 TFT SPI 240×320