CS-EE 481 1Founder’s Day University of Portland School of Engineering Project BoG Wireless Breath-Analyzer with Key- Lock Team Jessica Herman Patrick Hunt Jeremy Okuda Steve Westdal Faculty Advisors Dr. Hoffbeck, Dr. Osterberg Industry Representative Mr. Andrew Hui Intel Corporation

CS-EE 481 2Founder’s Day University of Portland School of Engineering Agenda Introduction Jessica Herman Background Jessica Herman Methods Patrick Hunt Results Jeremy Okuda Conclusions Steve Westdal Demonstration Team BoG

CS-EE 481 3Founder’s Day University of Portland School of Engineering Introduction The Problem: –Consuming alcohol impairs one’s vision, motor skills, and judgment. –These impairments have a very serious effect on one’s driving abilities. –Unable to determine if BAC is below legal driving limit of.08

CS-EE The Solution: –Wireless Breath-Analyzer With Key-Lock Introduction (Cont’d) Founder’s Day University of Portland School of Engineering

CS-EE The Goal: -Calculate the user’s BAC and use this value to control the peripherals -Utilize Zigbee wireless modules to have two physically separated units: Collector and Logic Background Founder’s Day University of Portland School of Engineering

CS-EE 481 6Founder’s Day University of Portland School of Engineering Background (Cont’d) Collector Unit: -Receives input from the alcohol sensor. -Converts alcohol concentration in an analog input to its corresponding digital signal. -Sends data wirelessly to Logic unit using Zigbee module.

CS-EE Background (Cont’d) Logic Unit: -Zigbee module receives data wirelessly from the Collector unit. -Uses the lookup table programmed into the PIC to determine user’s BAC. -Determines whether the user’s BAC is above or below.08 and responds accordingly. Founder’s Day University of Portland School of Engineering

CS-EE 481 8Founder’s Day University of Portland School of Engineering Methods Determine the scope of the project –Began in March 2008 Determine the functionality of the project –Stand alone Unit –Wireless Link –Visual and Audible Indicators How do we produce this functionality Determine feasibility of the project What will we be able to do with the MOSIS

CS-EE 481 9Founder’s Day University of Portland School of Engineering Methods (Cont’d) Results Drive capabilities of MOSIS versus PI C Different Logic Levels? Integration of all parts into a single unit Testing and De-bugging –Check and Recheck

CS-EE Results Founder’s Day University of Portland School of Engineering

CS-EE Results (Cont’d) Collector Unit –Alcohol Sensor Converts user’s ppm into a voltage ranging from 0-5V –PIC Converts ppm voltage from analog to digital –Zigbee Wireless Unit Sends digital voltage reading wirelessly to Logic Unit Founder’s Day University of Portland School of Engineering

CS-EE Results (Cont’d) Logic Unit –Zigbee Receives the voltage reading wirelessly from the Collector Unit –PIC Converts voltage into a BAC, displays the BAC on the LCD, and sends the BAC to the MOSIS chip –MOSIS Determines whether the user passes and controls the corresponding LEDs, sounds, and key-lock Founder’s Day University of Portland School of Engineering

CS-EE Results (Cont’d) Founder’s Day B2Logic Schematic University of Portland School of Engineering

CS-EE Results (Cont’d) Founder’s Day LEDIT Layout University of Portland School of Engineering

CS-EE System Results Individual √ ADC √ Wireless √ MOSIS √ LCD √ Key-Lock System √ ADC √ Wireless √ MOSIS √ LCD √ Key-Lock University of Portland School of Engineering Founder’s Day

CS-EE VoltageADC #BAC University of Portland School of Engineering Founder’s Day System Results

CS-EE Conclusion Wireless Breath-Analyzer With Key-Lock –Goal: safety Enhancements: –Power consumption –10 bit ADC –End product  Small scale –Packaging Founder’s Day University of Portland School of Engineering

CS-EE Founder’s Day University of Portland School of Engineering Demonstration Simulation of Wireless Breath-Analyzer with Key- Lock

CS-EE Founder’s Day University of Portland School of Engineering Special Thanks Dr. Joseph Hoffbeck Dr. Peter Osterberg Dr. Andrew Nuxoll Mr. Andrew Hui Grant from the MOSIS Educational Program (MEP)

CS-EE Founder’s Day University of Portland School of Engineering Thank You. Are there any questions?