1. Raspberry Pi Gamer
David Easley, James Rolfe, Andrew Thomas

2. The Idea:
Design, Build and Implement a handheld game-streaming console that allows for remote play of Steam PC games.
Design
Pick components
Layout circuit diagrams for peripherals
Create a 3D printable casing that fits all parts
Build
Augment Raspberry Pi board to fit design
Solder together additional components
Print and assemble casing
Implement
Test and tweak Moonlight for prototype
Write drivers for all inputs and outputs
Refine design iteratively

3. Cornerstone Technologies
Raspberry Pi is a common, well supported ARM microcontroller.
Designed to service multiple peripherals and has built in HDMI support.
Moonlight is an open source implementation of the Nvidia GameStream protocol used in such products as the Nvidia Sheild
All drivers are written with Python 2

4. Year Progress Report
Designed, milled, soldered test PCB for button/joystick driver testing
Updated controller python drivers for added/new peripherals
cleaned up old python code and made it modular
added dynamic diagonal scaling (for uniform directional movement) and swappable button configurations with a mapping generator
multi-threaded the drivers for concurrent layered execution
Added soft-shutdown feature
Run python drivers on startup, moonlight streaming script
Support new ac wireless chip
Full Rev3 board PCB design, milling, and assembly (cardboard body)
Iterative 3D printed case and button design
Full Rev4 board PCB design, milling, and assembly (3D printed body)
Squash dem bugs

5. Pics

6. Challenges
Old screens with poor/strange resolutions force Pi to scale for stream
Leads to multiple frame drops and video stuttering
Hardware solution: New screen ordered through Kickstarter
Won’t arrive until late May, now
New new screen ordered with fast shipping through Amazon
Gets stuck in US customs, won’t arrive until May 5th (by current estimates, OG estimate was April 24th)
While constructing Rev4 to make our video on Tuesday, the power board burnt up in a puff of smoke, taking the old screen and USB hub down with it
Also threading is hard on such a small cpu and memory space

7. Demo Video

8. Next steps
New screen should arrive Friday (barring any further US customs problems)
New power systems on order with express shipping
Will revise PCB slightly, and re-design 3D printed case base to better fit design components
Build a Rev5 for display and demo on the 12th
Optimize driver threading and add some pre-built button mappings

9. Questions?
Everyone