2. Networked HVAC Controller Bradley University Department of Electrical & Computer Engineering By: Ed Siok Advisor: Dr. Malinowski

3. Topics Summary Detailed Description System Block Diagram Software Description Current Status Equipment and Schedule

4. Summary Heating, Ventilation, & Air Conditioning Controller (HVAC) Separate Zones Network Interface

5. Topics Summary Detailed Description System Block Diagram Software Description Current Status Equipment and Schedule

6. System Block Diagram

7. Inputs Inputs – Temperature Sensors DS1820- Dallas Semiconductor Digital Sensor

8. Outputs Furnace Air Conditioner Zoned Dampers

9. Internet / Network Network Interface Input & Output – All interaction with users

10. Topics Summary Detailed Description System Block Diagram Software Description Current Status Equipment and Schedule

11. Software Two Purposes HVAC controller Web Server

12. HVAC Software Three Modes of Operation Heat, Cool, Off

13. Web Server

14. Topics Summary Detailed Description System Block Diagram Software Description Current Status Equipment and Schedule

15. Completed Tasks Familiarization with board Two methods of Uploading Code dBug Monitor using Hyperterminal Implementation of TCP Stack OpenTCP and RTXC Operating System uClinux

16. uClinux! A version of Linux refined for use on microcontrollers without memory management Included features: File System Support Multithreading TCP Stack Web Server

17. uClinux! Challenges: Maneuvering through Linux Programming for a Linux Device Access to all hardware Compiling a new OS with updated software

18. Topics Summary Detailed Description System Block Diagram Software Description Current Status Equipment and Schedule

19. Equipment CML-5282 LITE Microcontroller Board Axiom Manufacturing Dallas DS1820 Digital Temperature Sensors Or similar serial communication sensors

20. Schedule for Spring Weeks 1-4 Create Hardware Drivers for the Interfaces Research and Create Test Programs on Linux and port them to the Microcontroller Create the web interface for the web server and test the inputs and outputs

21. Schedule Weeks 5-8 Create HVAC controller code Create code to interface with digital sensors with serial communication Implement all of the code with Linux on the board

22. Schedule Weeks 9-12 Test and Debug all software and ensure that the project is working correctly Add any additional features Write final report Create final presentation

23. Additional tasks Implement web server / HVAC controller using OpenTCP and simple RTOS Expand HVAC code to include two stage heating, and optimization of usage Implement a basic VPN server using the microcontroller

24. Any Questions?