Data Sheet

4D SYSTEMS 4DPi-35 Primary Display – Raspberry Pi Compatible
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4DPi
-35
Primary Display
– Raspberry Pi
1. Description
The 4DPi-35 is a 3.5” Primary Display for the
Raspberry Pi*, which plugs directly on top and
displays the primary output like what is normally
sent to the HDMI or Composite output. It features
an integrated Resistive Touch panel, enabling the
4DPi-35 to function with the Raspberry Pi without
the need for a mouse.
Communication between the 4DPi-35 and the
Raspberry Pi is interfaced with a high speed 48Mhz
SPI connection, which utilises an on-board
processor for direct command interpretation and
SPI communication compression, and features a
customised DMA enabled kernel. This combination
allows this display to output 17FPS when
displaying a typical image/video, and can achieve
higher depending if the image can be compressed.
The 4DPi-35 is designed to work with the Raspbian
Operating System running on the Raspberry Pi, as
that is the official Raspberry Pi operating system.
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.
Note*: Raspberry Pi is a trademark of the
Raspberry Pi Foundation, and all references to the
words ‘Raspberry Pi‘ or the use of its logo/marks
are strictly in reference to the Raspberry Pi
product, and how this product is compatible with
but is not associated with the Raspberry Pi
Foundation in any way.
2. Features
• Universal 3.5” Primary Display for the Raspberry
Pi.
• Compatible with Raspberry Pi A, B and B+.
• 480x320 QVGA Resolution, RGB 65K true to life
colours, TFT Screen with integrated 4-wire
Resistive Touch Panel.
• Display full GUI output / primary output, just
like a monitor connected to the Raspberry Pi
• High Speed 48MHz SPI connection to the
Raspberry Pi, featuring SPI compression
technology.
• Typical frame rate of 17 Frames per second
(FPS), higher if image can be compressed
further by the kernel. Lower if no compression
is possible.
• Powered directly off the Raspberry Pi, no
external power supply is required.
• On/Off or PWM controlled backlight, selectable
by on board jumper.
• Module dimensions: 56.6 x 97.6 x 20.8mm
(including corner plates). Weighing ~ 50g.
• Display Viewing Area: 49 x 73.4mm
• 4x corner plates with 2.6mm holes for
mechanical mounting.
• RoHS and CE Compliant.