2. Team leader: Brad Lowe Team members: Marshalia Green John Thompson Lutrisha Johnson Faculty Advisor: Dr. Robert Reese

3. Team Responsibilities ResearchDocumentationWebsiteMicro- controller Component Interfacing Power Supply Marshalia Green XXXX Lutrisha Johnson XXXX Brad Lowe XXXX John Thompson XXXX

4. Presentation Outline I.Introduction II.Simulation III.Testing IV.Future Work V.Demonstration

5. Motivation Energy Conservation Decrease Energy Costs Convenience

6. Design Diagram Light Control Unit 01 Sensor Motion Sensor

7. Design Requirements Power (operate from house @ 120V AC) Size (light switch, 4.5 in x 3.5 in x 1.5 in) Installation (anyone with basic knowledge of electrical wiring) Life Expectancy (10 years)

8. System Components Photoelectric Beam Sensors Motion Detector PIC Microcontroller

9. Power Supply Requirements 3 doorways = 6 beams 1 beam = 10V @ 25mA 6 beams = 10V @ 150mA PIC = 5V @ 100mA Light control relay = 10V @ 100mA Total DC Current = 350 mA

10. Prototype of Power Supply Power Supply Components Transformer (10V @ 1A) Bridge rectifier Capacitor Voltage Regulator (7805) Power Supply Components Transformer (10V @ 1A) Bridge rectifier Capacitor Voltage Regulator (7805) Size of Transformer: 1.38 in X 1.88 in Size of Transformer: 1.38 in X 1.88 in

11. Simulation Power Supply

12. Power Supply Test 5V Very small current ripple 5V Very small current ripple 120V AC

13. Beam Testing 5V on 0V off

14. Results of Beam Testing Power consumption Data Sheet: 10V @ 25mA Measured: 10V @ 16mA Beam detection length = 14 ft Power consumption Data Sheet: 10V @ 25mA Measured: 10V @ 16mA Beam detection length = 14 ft

15. Cost Analysis (Prototype) The total cost for the system is $99.82. Beams$60.00 Motion Detector$20.00 Microcontroller$4.62 Transformer$6.00 Voltage Regulator$0.75 Rectifier$0.52 Relay$3.99 Capacitor$0.85 Power Mosfet (relay control) $1.99 Fuses/Fuse Holder$1.10

16. Prototype

17. Summary Power supply for beams: Functions properly Power supply for circuit: Complete Microcontroller: Programming not complete Motion Detector: Acquired, but being tested

18. Future Work Complete Testing and Debugging of Design Board Fabrication Packaging

19. Timeline Tasks August SeptemberOctoberNovemberDecember 12341234123412341234 Order Parts Fabricate PC Board Place Parts on PCB Test Design Debug Design Final Packaging Presentation

20. Demonstration