1. ECE 477 Design Review Group 9  Fall 2005 Paste a photo of team members here, annotated with names of team members. Tim Miller Clif Barnes Drew Heinrich Steven Kady

2. Outline Project overviewProject overview Project-specific success criteriaProject-specific success criteria Block diagramBlock diagram Component selection rationaleComponent selection rationale Packaging designPackaging design Schematic and theory of operationSchematic and theory of operation PCB layoutPCB layout Software design/development statusSoftware design/development status Project completion timelineProject completion timeline Questions / discussionQuestions / discussion

3. Project Overview Automated Pill dispensing system that delivers pills based upon a schedule.Automated Pill dispensing system that delivers pills based upon a schedule. Can be monitored and controlled remotely via a web interface.Can be monitored and controlled remotely via a web interface. Able to be controlled locally using an optical rotary encoder and LCD screen.Able to be controlled locally using an optical rotary encoder and LCD screen.

4. Project-Specific Success Criteria Ability to dispense pills using a mechanical system, under the control of a microcontroller through PWMAbility to dispense pills using a mechanical system, under the control of a microcontroller through PWM Ability to Display current status of system using LCD and LEDsAbility to Display current status of system using LCD and LEDs Ability to alert the user when pills have been dispensed through audible and visible alarm.Ability to alert the user when pills have been dispensed through audible and visible alarm. Ability to dispense pills based on a user defined schedule.Ability to dispense pills based on a user defined schedule. Ability to control device/change settings through Ethernet with embedded web serverAbility to control device/change settings through Ethernet with embedded web server

5. Block Diagram MC9S12NE64 LCD Display Rotary Interface Sensors Web Interface Dispensing Mechanism User Control TCP/IP Motor Control Status Data Motor Position Data

6. Component Selection Rationale MicrocontrollerMicrocontroller –Freescale MC9S12NE64CPV Ethernet connectivityEthernet connectivity ExpandabilityExpandability Power ConsumptionPower Consumption Familiarity with ArchitectureFamiliarity with Architecture Stepper MotorStepper Motor –403-1014-ND SizeSize PrecisionPrecision

7. Packaging Design DurabilityDurability SecuritySecurity

8. Schematic/Theory of Operation Power Circuit 9VDC Wall Wart 2 Low Dropout Regulators 3.3V Regulated Output 5.0V Regulated Output Battery Backup

9. Schematic/Theory of Operation Stepper Motor Control 2 Bipolar Stepper Motors Use Motor Control IC coupled with a Dual H-Bridge Use of Flyback Diodes to suppress current during coil switching Dip Switch to manually choose motor speed

10. Schematic/Theory of Operation User InterfacingUser Interfacing LCD Interfacing Optical Rotary Switch

11. Schematic/Theory of Operation Microcontroller CircuitMicrocontroller Circuit

12. Schematic/Theory of Operation Ethernet InterfaceEthernet Interface –Utilizes NE64 onboard control signals –Magnetically Isolated RJ45 Jack

13. Schematic/Theory of Operation Feedback CircuitsFeedback Circuits –5 IR Sensors 2 Spindle Position sensors2 Spindle Position sensors 2 Spindle Drop sensors2 Spindle Drop sensors Bin Full sensorBin Full sensor

14. PCB Layout

15. Software Design/Development Status Software DesignSoftware Design –Writing in C using Code Warrior –Command and Interrupt Driven Development StatusDevelopment Status –Under Construction Motor ControlMotor Control Web ServerWeb Server Timing / SchedulingTiming / Scheduling

16. Project Completion Timeline Software - 9 NovemberSoftware - 9 November –Web Server- 9 November –Scheduler- 2 November –Motor Control- 26 October PCB- 2 NovemberPCB- 2 November Integration- 16 NovemberIntegration- 16 November Packaging- 22 NovemberPackaging- 22 November

17. Questions / Discussion