Performed by: yarovoy boris krassowizki alex Instructor: sinyuk konstantin המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory הטכניון - מכון טכנולוגי לישראל הפקולטה להנדסת חשמל Technion - Israel institute of technology department of Electrical Engineering דו ” ח סיכום פרויקט סופי Subject: Biofeedback system 1

Abstract המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory 2 The principle of biofeedback is to collect data about person’s emotional state and to perform appropriate actions accordingly to this state. Project task is building of Biofeedback system which collects data(temperature and skin resistance) from a person and creates influence(light and sound) on it accordingly, minimizing user interface

System description המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory 3 The main system component is a demo board from Microchip including microcontroller. It collects data from external self build board on which resistance measurement circuit is placed and temperature sensor is connected and sends results to PC. The PC is this that determines what sound and light should be applied to a person,collecting and processing received data and gives to microcontroller appropriate command according to which it performs influence actions running onboard buzzer and LEDs.

Specification המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory Hardware Software 4 Digital temperature sensor of TI TMP100 with I2C interface Skin resistance circuit (self built): TI amplifiers,TI analog switches Microchip microcontroller PIC18f452 with I2C interface (with demo board) Sound and light sources : LED’s and buzzer on PIC demo board PC MPLAB2 module for debugging C-compiler with support C functions for programming PIC peripherals Visual Studio C++ 6.0

System Block Diagram המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory 5 PICMicrocontroller PC Temperature sensor Skin resistance circuit I2C A/D Control UART Influence PWM