Jump Trading Medical Simulator Tommy Shiou & Nick Cialdella TA: Justine Fortier

Introduction Medical Training Problem –Complex Controls What we are doing –Control Interface –Minimize head movement

Features Provides user-friendly interface to control medical simulations Allows control without distracting technician from ongoing simulation

System Overview

Power Supply PCB 12 V DC input 12 V –Arduino –LEDs 5 V Linear Regulator –RPi –Displays –Resistor network 3.3 V Linear Regulator –Buttons –LEDs

Power Supply Schematic

Control Interface Pushbuttons SPST-NO switch Selects parameters to be changed Verified: selection on GUI Rotary Encoder Outputs 2-bit gray code Sweeps parameters Verified: confirmed output on GUI

Control Interface (cont.) Rotary Switch 5-position switch Selects transition time to new parameter values Verified: selection on GUI R-NET SCHEMATIC

Display LCD 2x 10.1” LCD Panel 1280x800 Resolution LVDS interface Off-the-shelf (OTS) HDMI-LVDS Converter Converts Rpi HDMI output to LVDS for LCD display (OTS)

MicroControllers Raspberry Pi OS - Raspbian “Wheezy” (Debian) –LXDE UART pins Arduino Uno 18 Digital & 1 Analog Pins content/uploads/2011/07/ _9a6ef2feb8_ o.jpeg

Communication RPi - Arduino USB interface –A-to-B USB 9600 Baud Rate –1200 characters/sec –10-char messages Testing & Verification –MiniCom – Arduino Serial Monitor

Input Controller Encoder Interrupt Handler

Application Software

Communication RPI - PC 3.3V FTDI USB-UART –Serial Monitor ApplicationController.cs –Access current values 9600 baud rate –Effect on Rpi Testing & Verification –MiniCom – PuTTY

PC-side System Laerdal Software Learning C# –Model-View-Controller Serial Monitor –Drivers –Event-driven Application Specific –Graphical User Interface –Trends, Delay

Costs Input Hardware: $110 Display: $300 Microcontrollers: $80 Power: $30

Future Work PCB for interconnections between interface, power, and microcontrollers Fusing and further stabilization – requires additional expense Software compatibility customized to Jump Trading (trends) Non-specific device driver development

Acknowledgements Jump Trading –Jimmy Rowland –Dr. Vozenilek Justine Fortier Glen Hedin – Machine Shop Parts Shop –Mark Smart –Wally Smith

Questions??