1. Team 2 Solar Kiosk Project Sponsored by: Team Members: Jakub Mazur - Manager Eric Tarkleson – Presentation/Lab Josh Wong - Webmaster Ben Kershner – Document Preparation

2. Presentation Outline Purpose Design Parameters System Architecture Power Management Questions

3. Project Purpose Provide students in rural areas an opportunity to learn via computers. – Solar powered – Internet connected – Multi user Obstacles: – No electricity – No books – No roof…

5. Test Case: Tanzania

7. Design Parameters Cost Power consumption Ease of use Safety Reliability Faithfulness to Lenovo hardware

8. Major Project Considerations System architecture – Laptops – Thin Clients – Multi Seat Power management – Microcontroller monitoring – Power control

9. System Architecture: Multi Seat Low power Low cost Open source software Proprietary software

10. System Architecture: Thin Clients Proven solution Reliable Low power Able to make DIY clients

11. Power Management Utilize microcontroller to monitor and manage power – PIC microcontroller – LEM Hall effect sensors – ADCs – LCD display – Status LEDs

12. Power Management Necessary features: – Monitor battery voltage/current – Monitor solar panel voltage/current – Issue shutdown sequence Optional features: – Individual current draw – Photo diode on solar panel – Seat monitor – Status reporting to central server

13. Questions?