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Pill Enclosure with Notification and Illuminance
Sensors
James BarfieldAndrew DanceBen Jacobson
Anthony Mucciolo
School of Electrical and Computer Engineering
Project Overview Pillbox with pill detection and alarm Market for elderly, frequent medication users Development costs < $30,000 Final product cost under $70 per unit
James
Design Objectives
Accurate 24-hour clock Time-adjustable alarm Audible and visual notifications User interface Dosage detection (LED/photodiode) Pill compartment indicator (LED)
James
Design Approach – Housing
Opaque plastic Seven sections for pills Cupped compartment Reflective top Four
pushbuttons
Ben
Design Approach - Electronics
Infrared LED, Photodiode, Band pass filter LCD screen to display messages and alert LEDs to indicate the day’s compartment Buzzer for audible alarm Microcontroller implementation
Ben
System Level Schematic
Ben
Program Flowchart
Anthony
Demonstration Plan
Accuracy of Alarm/Clock All alarm alerts (LCD, LED, and buzzer)
function properly Alarms can be stopped Pill removal detected Alarms reactivate if pills aren’t removed
Anthony
Design Obstacles
PIC programming
Box manufacturing
PCB design
Anthony
Current Status
Programming boards built for PIC PIC programming divided into modules CAD drawings of box finished
Anthony
Cost Analysis - DevelopmentLabor Hours Labor Cost Parts Total Cost
Engineer Design Meetings 120 $6,000.00 $6,000.00
Construction & Testing
Programming 120 $6,000.00 $100.00 $6,100.00
Building 100 $5,000.00 $39.44 $5,039.44
Testing 120 $6,000.00 $ - $6,000.00
Total Labor 460 $23,000.00
Total Parts Cost $139.44
Total Overhead $5,750.00
Project Total $28,889.44
Andrew
Cost Analysis - Device
Quantity Cost Per Unit Total Cost
LCD screen 1 $6.00 $6.00
Photodiode 7 $3.30 $23.10
PIC 1 $2.08 $2.08
LEDs 14 $0.59 $8.26
Enclosure $12.14 $12.14
Total Cost $51.58
Andrew
Project Milestones
Blink an LED Detect a pill with the LED-photodiode pair Send messages to LCD Confirm timer/alarm accuracy
Andrew
Courage is almost a contradiction in terms. It means a strong desire to live taking the form of a readiness to die.
--G.K Chesterton