ECE 477 Design Review Group 5  Spring 2005

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 Preliminary PCB layoutPreliminary PCB layout Software design/development statusSoftware design/development status Project completion timelineProject completion timeline Questions / discussionQuestions / discussion

Project Overview The goal of this project is to provide an accurate means of distributing prescription drugs to patients. This is to aid patients with memory problems and patients with drug abuse problems. The device distributes various tablets based on a time schedule. The schedule can be customized via a PC. The dispenser is responsible for delivering a precise number of tablets from storage banks to a receptacle. Each tablet is held in a magazine. An actuator is used to push single tablets from the magazine. There are 4 magazines. The LCD screen is used to display data from the device. Using two buttons next to the screen, the user can scroll between the current time, time of next distribution, and remaining tablets in each bank. The modem/Ethernet adapter will make a connection to a pharmacy and renew a subscription when it is low. The microcontroller handles the controls signals for the control system of the dispenser, manages the data for the LCD display, interfaces to the modem/Ethernet adapter for external data transfers. Prescriptions and times of distribution can be uploaded to the device through the serial communications port. An application running on a PC will manage this data.The goal of this project is to provide an accurate means of distributing prescription drugs to patients. This is to aid patients with memory problems and patients with drug abuse problems. The device distributes various tablets based on a time schedule. The schedule can be customized via a PC. The dispenser is responsible for delivering a precise number of tablets from storage banks to a receptacle. Each tablet is held in a magazine. An actuator is used to push single tablets from the magazine. There are 4 magazines. The LCD screen is used to display data from the device. Using two buttons next to the screen, the user can scroll between the current time, time of next distribution, and remaining tablets in each bank. The modem/Ethernet adapter will make a connection to a pharmacy and renew a subscription when it is low. The microcontroller handles the controls signals for the control system of the dispenser, manages the data for the LCD display, interfaces to the modem/Ethernet adapter for external data transfers. Prescriptions and times of distribution can be uploaded to the device through the serial communications port. An application running on a PC will manage this data.

Project Overview-REVISED The creation of a pill dispenser that will provide an accurate means of distributing prescription drugs to patients based on a time schedule.The creation of a pill dispenser that will provide an accurate means of distributing prescription drugs to patients based on a time schedule. Created to aid patients with memory problems and patients with drug abuse problems.Created to aid patients with memory problems and patients with drug abuse problems. The time schedule can be customized via a PC. Prescriptions and times of distribution can be uploaded to the device through the serial communications port.The time schedule can be customized via a PC. Prescriptions and times of distribution can be uploaded to the device through the serial communications port. The dispenser is responsible for delivering a precise number of tablets from storage banks to a receptacle. Each tablet is held in one of four magazines. An actuator is used to push single tablets from the magazine.The dispenser is responsible for delivering a precise number of tablets from storage banks to a receptacle. Each tablet is held in one of four magazines. An actuator is used to push single tablets from the magazine. The LCD screen is used to display data from the device. Using two buttons next to the screen, the user can scroll between the current time, time of next distribution, and remaining tablets in each bank.The LCD screen is used to display data from the device. Using two buttons next to the screen, the user can scroll between the current time, time of next distribution, and remaining tablets in each bank. The modem/Ethernet adapter will make a connection to a pharmacy and renew a subscription when it is low.The modem/Ethernet adapter will make a connection to a pharmacy and renew a subscription when it is low. The microcontroller handles the controls signals for the control system of the dispenser, manages the data for the LCD display, interfaces to the modem/Ethernet adapter for external data transfers.The microcontroller handles the controls signals for the control system of the dispenser, manages the data for the LCD display, interfaces to the modem/Ethernet adapter for external data transfers.

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

Block Diagram Serial interface Microcontroller Dispenser LCD Display PC Modem/Ethern et adapter Audio System

Component Selection Rationale

Packaging Design

Schematic/Theory of Operation duplicate this slide as necessary for each major block of your designduplicate this slide as necessary for each major block of your design

Preliminary PCB Layout

Software Design/Development Status

Project Completion Timeline

Questions / Discussion