1. V i t a l i s ECE 477 - Spring 2013 TEAM 13 Presenter: Yi Shen Wireless Biometric Sensor Team Members: Aakash Lamba Di Mo Shantanu Joshi Yi Shen Schematic and Theory Operation

2. The aim of the project is to create a prototype of a portable wireless biometric sensor that can provide doctors/nurses with an efficient way of handling multiple patients in a hospital environment. The main advantages this device would have over conventional monitors are it’s portability, unobtrusive nature and size. The battery-powered device is mounted on the wrist and monitors vital health parameters such as pulse rate, SpO 2 and skin temperature then transmits the information via WiFi for remote web access. In addition, a NFC chip embedded on the device will allow immediate access to a patient’s charts on any NFC compatible device. The device will also include fall detection as well as a manual and automatic alarm system. Project Abstract

3. Block Diagram

4. Overall Schematic

5. Schematic: Microcontroller JTAG Headers SPI ATmega1284

6. Power Supply Supply Voltage – Lithium Battery Outputs 3.7 Volts (Nominal) – 3.3 Volts Microcontroller Sensors (SpO2, temperature, accelerometer) Wi-Fi Module – 5 Volts OLED Micro + Sensors OLED Connected to PC1/PC0 (I 2 C pin) on Micro

7. Schematic: Power Supply Charger/Booster 5V Step Up Fuel Gauge Headers

8. Push Button – (Emergency) PA4 (GPIO) Accelerometer (Analog) PA0/PA1/PA2 (Analog) Temperature (digital) SDA/SCL (I 2 C pin) Pulse Oximeter PB2 (External Interrupt) Receptor ( IC chip outputs FM Voltage) PA5/PA6 (GPIO) Regular Red LED Infrared LED Sensors: Pin Connections

9. Sensors: Schematic Oximeter Temperature Accelerometer Emergency Push Button

10. Wi-Fi and OLED: Pin Connections Wi-Fi Module UART (TXD0) PD1 UART (RXD0) PD0 OLED UART (TXD1) PD3 UART (RXD1) PD2 Wi-Fi OLED Micro * Serial Communication