The 4D Raspberry Pi Serial Adapter provides a convenient interface to attach 4D Systems display modules to the Raspberry Pi platform without having to use jumper wires on the Raspberry Pi headers. This adapter is compatible with A, B, B+, Pi2 and Pi3 models — just make sure to connect it to the correct part of the extended header on B+, Pi2 or Pi3.
Communication to a 4D Systems Display Module is performed via your Raspberry Pi's serial port (RX and TX), and is provided via a simple 5-pin interface. A 5-pin cable is included for connection to the display module (the same cable as comes with the new PTU modules).
Power for the display is supplied from your Raspberry Pi's 5V bus. No external power is required for the Display Module as all power is supplied from the Raspberry Pi through the adapter.
This adapter features a pass-through header design, enabling existing Raspberry Pi products to connect to your Raspberry Pi through the adapter. You simply plug your add-on module into the adapter the same way as you would plug it into the Raspberry Pi itself.
The lower image shows this adapter plugged into a Raspberry Pi, and a 4D Systems display module connected to this adapter.
The 4D Raspberry Pi Serial Adapter is compatible with the following 4D Systems display modules: While older modules from 4D Systems may be pin compatible, the 4D Raspberry Pi Library may not support them specifically.
Note: These 4D displays will NOT function as a Primary Display for the Raspberry Pi. The Raspberry Pi OS can not be displayed on these modules; they act as a slave/secondary display only. The display modules are programmed using the Workshop4 IDE, and the Raspberry Pi acts as the Host to send/receive information to/from the display module. If you want a small primary touchscreen display to use the Raspberry Pi OS, see 4DPi-32 or 4DPi-35 (each of which plugs into your Raspberry Pi directly so you won't need this adapter).
4D Raspberry Pi Adapter Resources In the pages linked from here, make sure you download the correct libraries and documentation for the display module you're using. There are three different graphics processor chips used by 4D display modules: GOLDELOX, PICASO, and DIABLO16. The above list of compatible displays mentions which chip is on which display, for your reference.
Operating Temperature: -10 to +70 °C
Supply Voltage: 4.5V to 5.5V
UART Voltage: 3.3V
Adapter Dimensions: 65 × 50 × 30 mm