4D Systems' 4DPi-32 and 4DPi-35 are 3.2" 320x240 and 3.5" 480x320 Primary Displays respectively, for the Raspberry Pi. They plug directly on top of a Raspberry Pi and displays the primary output which is normally sent to the HDMI or Composite output. It features an integrated Resistive Touch panel, enabling the 4DPi-32 and 4DPi-35 to function with the Raspberry Pi without the need for a mouse. Communications between the display and the Raspberry Pi are interfaced with a high speed 48Mhz SPI connection. It utilizes an on-board processor for direct command interpretation, SPI communication compression, and features a customised DMA enabled kernel. The 4DPi-35 features a breakout header (P2), which enables all of the Raspberry Pi GPIO pins to be accessed while the 4DPi-35 is connected. These can be access with jumper wires or with an IDC ribbon cable. Powered directly off the Raspberry Pi, this 3.5" Touch panel allows effortless connection, and a single download package will get you up and running with a few simple steps. Please refer to the Datasheet for detailed information. The 4DPi-32 and 4DPi-35 is designed to work with the Raspbian Operating System running on the Raspberry Pi.