ECE 477 Final Presentation Group 5  Spring 2005 Paste a photo of team members with completed project here. Annotate this photo with names of team members.

Outline Project overview Block diagram Professional components Design components Success criteria demonstrations Individual contributions Project summary Questions / discussion

Project Overview “The Pill Pusher” Home Appliance Device will dispense a preprogrammed number of pills based on a time schedule. Pill information and delivery times are programmed to device via a serial connection to a PC. Buzzer sounds upon dispensing pills. Alert will cease when a button is pressed. Home Appliance Fits on your countertop and takes up as much space as a coffee maker Simple to use for the elderly

Block Diagram-Original Serial interface Microcontroller Dispenser LCD Display PC Modem Audio System Scroll Buttons

Block Diagram-Revised

Professional Components Constraint analysis and component selection rationale Patent liability analysis Reliability and safety analysis Ethical and environmental impact analysis

Constraint Analysis Computational Requirements-Microcontroller Store information about pills in banks Keep track of time Activate delivery system and alert the user Interface Requirements LCD display Store information using serial connection to PC Power Supply Constraints Power supply is 5 V DC Maximum current is 5.1 mA

Constraint Analysis Packaging Constraints Cost Constraints Contains 4 pill banks, LCD display and PCB Portability is not a concern Cost Constraints A device that is cheaper than similar products Component Selection Microcontroller (PIC18F4539) Stepper Motors vs. Servo Motors

Patent Liability Analysis Main Focus How would the pills be dispensed? What happens if the pills are an oblong shape? Patent One “Programmable automatic pill dispenser” Preload the necessary pills for that day in a compartment The whole canister is dispensed Patent Two “Remotely programmable medication dispensing system” Most similar to ours Pre-package pills for that day in bags Uses a barcode to identify when pills should be dropped

Patent Liability Analysis Literal Infringement “The Pill Pusher” vs. Patent Two No infringement found based on the way pills are dispensed Infringement Under Doctrine of Equivalents “The Pill Pusher” vs. Patent One No infringement-very different

Reliability/Safety Analysis

Ethical/Environmental Analysis

Design Components Packaging design considerations Schematic design considerations PCB layout design considerations Software design considerations

Packaging Design Package is constructed using acrylic Can withstand high pressure Machine shop has equipment to cut/bend Internal operation can be observed Box-like design with slanted face for LCD screen and controls Lockable top lid allows access to magazines

Packaging Design 2D schematic

Packaging Design Lid Enclosure

Packaging Design 3D schematic

Packaging Design Pill Banks Strips of acrylic sheets, glued together to form banks. Universal mounting base plate. Actuator pushes pills out front of bank.

Schematic Design

Schematic/Theory of Operation Power Block

Schematic/Theory of Operation Microcontroller

Schematic/Theory of Operation Motor Control

Schematic/Theory of Operation Switch Input

PCB Layout Design

Software Design

Success Criteria Demonstrations To send/receive prescription information and times to/from a PC via serial interface- demo To control dispensing system with microcontroller generated interrupts- demo To display pertinent information for status/user control on LCD screen - demo To provide audible signal to user for specific events - demo To store prescription data in memory and access it based on a time schedule.- demo

Individual Contributions Team Leader – Jonathan Benetti Team Member 2 – Andy Mehl Team Member 3 – Adam McNeal Team Member 4 – Ben Romberger

Team Leader – Jonathan Benetti

Member 2 – Andy Mehl

Member 3 – Adam McNeal

Member 4 – Ben Romberger

Project Summary Important lessons learned

Project Summary Second iteration enhancements

Questions / Discussion