1. Traffic Light Synchronization by: Avneesh Kohli, Eric Harmatz, and Govil Gupta

2. Cluster 1: Adventures in Embedded Computer Systems Instructors: Dr. Rajesh Gupta, Dr. Choon Kim, Shirley Miranda, Arash Arafee, Bridget Benson

3. The Problem Over 6 million accidents per year Nearly 50,000 deaths per year 60% of accidents by human error $230 billion spent annually

4. Purpose In need of a better safety traffic system Traffic lights controlled by timers rather than present cars Synchronization of lights can save time and lives

5. Background Information C Programming Language PSoC Devices CapSense / Touch-Based Input Hardware / Wiring Multi-chip Communication

6. Hypothesis Use CapSense to represent car Light turns green when car approaches intersection Perpendicular lights change automatically Two sets of lights are synchronized 8 8 2 2 3 3 4 4 5 5 6 6 7 7 9 9

7. Materials 2 Cypress PSoC CY3214 Chips 3 LED’s (Red, Yellow, Green) CapSense module PSoC Designer 5.0 PSoC Programmer USB Mini-Programmer Wires

8. Procedure 1. Open PSoC Designer 2. Select Chip Level Project 3. Add CSD User Module 4. Configure CSD 5. Add 3 LED User Modules 6. Configure LED’s

9. 7. Open main.c 8. Program main.c 9. Build project using Imagecraft compiler 10. Transfer program to chip 11. Connect wires to breadboard and ports

10. Sample Pictures

11. Video Demonstration

12. Results and Data Successful, working device Realistic light cycle delays Very responsive to all finger motions

13. Conclusions Successful culmination of our knowledge of C and hardware Can be improved with a more efficient code Can be expanded to use 2 CapSense modules

14. Applications/Future Incorporate into suburban streets to reduce intersection accidents Applicable to any areas with controlled traffic Less traffic, save people, save time