1. RESIDENTIAL ACTIVE DAYLIGHTING SYSTEM 4/21/2010 Alec Bornemann

2. BACKGROUND - Light Bulbs are Being Used in Homes During Daylight Hours While Sunlight is “Wasted” On the Floor - An Economical, User Friendly Way to Use This Sunlight is Needed

3. MORE BACKGROUND - Some Patented Designs Use a Single Large Mirror to Reflect Light - These Waste Space and Available Sunlight

4. POSSIBLE SOLUTIONS Redirect Sunlight To Desired Location Using Solar-Tracking Mirrors - Only Get What Comes Through Windows “Pipe” Light Using Fiber-Optics - Expensive, Not User Friendly

5. SOLUTION CHOICE -Multiple Mirrors Oriented Similar to Venetian Blinds

6. System Diagram

7. CLARIFICATION SUN ANGLE MIRROR ANGLE USER ANGLE INDOOR OUTDOOR

8. Main Mechanical Components Altitude Link

9. Mechanical Details Linkage Center Line of Pivot Point Spherical Bearings

10. Linkage

11. Software Overview

12. Electrical Components -5V Power Supply - 3.3V Regulator to Power Micro Controllers - HCS08 Microcontroller - Servo Motors

13. Electrical Schematic

14. Servo Motors -HiTec 1/4 scale and 1/8 scale -HCS08 inputs a PWM, pulse width determines angle. -Acts as a smart device in this system

15. Sensor Orientation

16. Management -Only Group Member. -Spoke with Sales Representatives to Request “Samples” or Donations. -Working in Conjunction with Other Groups to Share Responsibilities.

17. Budget Part NameQuantityPrice Servo Motor2$70 Aluminum8 Feet$25 Bearings24$120 (Donated) Universal Joint1$20 HCS08 µC 1$1 6 V Power Supply1$20 (Owned) Total$236 ($116 Actual Cost)

18. SCHEDULE

19. What I Have Learned - Just because it worked when you left does NOT mean it will work when you come back. - Plan on getting frustrated.

20. Questions?

21. Thanks To: - LWI Metalworks - John Murphy - Bob Royce - Mike Wright - Roger Howes - Eric Bornemann - John Bornemann - Aaron Minard - Eric Hall - Igus Inc.