This is the 3.5" Raspberry Pi Primary Display Cape, a small touch-sensitive screen that attaches directly onto your Raspberry Pi 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 Primary Display Cape to function with the Raspberry Pi without the need for a mouse.
Communication between the 3.5" Primary Display Cape and the Raspberry Pi is interfaced with a high speed 48Mhz SPI connection, which utilizes an on-board processor for direct command interpretation and SPI communication compression, and features a customized 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 Primary Display Cape is designed to work with the Raspbian Operating System running on the Raspberry Pi, as that is the official Raspberry Pi operating system.
The Primary Display Cape features a breakout header (P2), which enables all of the Raspberry Pi GPIO pins to be accessed while the cape is connected. These can be access with jumper wires or with an IDC ribbon cable.
Note: The Raspberry Pi Primary Display Cape is now able to support Raspberry Pi 2 and any NOOBS issue (like the one mentioned in the Product Video below) has also been fixed.
If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.
Skill Level: Competent - The toolchain for programming is a bit more complex and will examples may not be explicitly provided for you. You will be required to have a fundamental knowledge of programming and be required to provide your own code. You may need to modify existing libraries or code to work with your specific hardware. Sensor and hardware interfaces will be SPI or I2C.
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If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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I'm still trying to get my Raspberry Pi to work the way I want it to. I haven't even plugged in my touchscreen yet. I'll let you know how it goes.