1. CS-EE 481 Spring 2007 1March 2007 University of Portland School of Engineering Project Boring Magnetic-field Monitoring Microprocessor Machine (MMMM) Team Mr. Geoffrey Friason Mr. Michael Braun Mr. Eric Yost Advisors Dr. Aziz Inan Dr. Peter Osterberg Industry Representatives Mr. Wes Mickanin Mr. Jared A. Hay

2. CS-EE 481 Spring 2007 2March 2007 University of Portland School of Engineering Overview Introduction Scorecard for March Demonstration Plans for April Current Issues and Contingencies Conclusions

3. CS-EE 481 Spring 2007 3March 2007 University of Portland School of Engineering Introducing the MMMM Captures the two components of vectors –Strength of the magnetic field (Gauss) –Orientation of field in 3-D space (degrees) Static capture, rather than dynamic Key technologies –Hall effect sensor –PIC18F452 microcontroller family

4. CS-EE 481 Spring 2007 4March 2007 University of Portland School of Engineering Architecture of MMMM Hall effect sensorAnalog Multiplexer Analog-to-Digital Converter PIC18LF452 Microcontroller LCD Hardware Used in Demo:

5. CS-EE 481 Spring 2007 5March 2007 University of Portland School of Engineering Plans for March Figure out how to debug firmware ASAP Complete test case documentation by 3/2 Have test case success by 3/21

6. CS-EE 481 Spring 2007 6March 2007 University of Portland School of Engineering Scorecard for March 100% complete –Firmware functional –Test case documentation In progress –Test case scenario testing

7. CS-EE 481 Spring 2007 7March 2007 University of Portland School of Engineering Additional Accomplishments Custom-cut Lexan for probe design

8. CS-EE 481 Spring 2007 8March 2007 University of Portland School of Engineering Show ‘n Tell Device with one probe implementation What to look for: –Magnitude should resemble Gaussmeter output –Angles should be one of two possibilities: If single probe detects South field: 45° If single probe detects North field: 225°

9. CS-EE 481 Spring 2007 9March 2007 University of Portland School of Engineering Plans for April Build and debug Hall effect probe Complete test case scenarios Prototype approval Founder’s Day Final report approval

10. CS-EE 481 Spring 2007 10March 2007 University of Portland School of Engineering Milestones NumberDescription Original 10/30/06 Previous 3/1/07 Present 3/27/07 1Product Approval09/29/06 2Plan Approval11/10/06 3EDIF Netlist ( ‘ Tape-out ’ )11/22/06 4Design Release12/08/06 5Firmware Release01/19/07 01/30/07 6Alpha Prototype Release02/16/0703/09/0703/04/07 7Theory of Operations02/23/07 8Test Case Scenarios02/28/0703/02/0703/03/07 9Test Case Success03/21/07 04/05/07 10Prototype Release04/13/07 11Founder ’ s Day04/17/07 12Final Report04/27/07

11. CS-EE 481 Spring 2007 11March 2007 University of Portland School of Engineering Concerns and Contingencies Power supply regulation –Concern: sensors very sensitive to fluctuation –Contingencies: Careful monitoring of supply voltage Have sampled less sensitive Hall effect sensors Implementing a battery-powered device

12. CS-EE 481 Spring 2007 12March 2007 University of Portland School of Engineering Conclusions ‘Light at the end of the tunnel’ much brighter than a month ago Working alpha prototype of all hardware except Hall effect probe array Reaching accuracy stated in functional specifications is main concern