1. 1 Embedded Stroke Evaluation System Amanda Sweeney, 4ECE Supervisor: Martin Glavin

2. 2 Presentation Overview Project Description Progress to Date Work Remaining

3. 3 Project Description This project involves the development of an embedded system that will allow an occupational therapist to objectively and accurately measure the severity of stroke suffered by patients in their care The system will measure and record pressure, force, position and speed of the wrist action, to allow the therapist to assess the severity of the stroke

4. 4 Progress to Date Strip Board - Design & Build Voltage Regulator Circuit - Design & Build Connecting LCD to MPU - IDE cables Programming the LCD - To display text

5. 5 Printed Circuit Board Strip Board Components –3 FSR’s –3 83 0hm Resistors –9V Battery The sensors operate as a component of a voltage divider circuit The outputs from the circuit are transmitted to an ADUC831 circuit board

6. 6 Voltage Regulator Circuit A voltage regulator is an electrical regulator designed to automatically maintain a constant voltage level. 1. Input : Unregulated Voltage 2. Ground 3. Output: Regulated voltage

7. 7 Connecting LCD to MPU IDE cables to connect the pins on the LCD to the MPU made up according to pin assignment in T6963C datasheet

8. 8 Programming the LCD … After power on it is necessary to drive RST low for a minimum of 2 microseconds to ensure proper reset of the T6963C. Initialize LCD –The controller must then be initialized with a series of commands to set up the various modes and options available to the user.

9. 9 … Programming the LCD Status Check –Before every data read, data write or command write the status of the LCD must be checked to ensure that it is ready to communicate with the MPU. –This means simultaneously checking the status of STA0 and STA1 i.e. D0 and D1 respectively, both of these must be “1” to enable command execution capability and data read/write capability.

10. 10 … Programming the LCD … Data Transmission

11. 11 … Programming the LCD 30h, 32h, 25h, 33h, 33h, 35h, 32h, 25h, 1Ah

12. 12 Work Remaining … ADC Serial Communication Integrate Keypad and Buzzer Position & Speed of Wrist Action GUI

13. 13 Questions ???