Mid Semester Presentation Glove Mouse

Jacob BassettChelsea MosserRobert BlackBryan Lee Electrical Engineer HID Protocol Enclosure Electrical Engineer Accelerometer and Gyroscope Coding Enclosure Electrical Engineer Accelerometer and Gyroscope Coding Glove Design Electrical Engineer HID Protocol Glove Design Dr. Mike Mazzola Advisor Team Members

 Problem  Solution  Approach  System Overview  Constraints  Technical  Practical  Components  Timeline  Progress  Q&A Outline

There is a lack of implementation of emerging technologies within the Human Interface Device (HID) field of computing. There are unexplored implementations of motion sensors. Problem

Innovate the current mouse design using motion sensors to add more flexibility to the method of operating the mouse. Solution

Approach  Motion sensor detects location of glove  Motion sensor sends location information to microcontroller  Microcontroller data interpreted by computer as mouse  Detachable module design  Pressure sensors on fingers for mouse buttons

Motion-Sensing Technologies  Camera  Infrared/Optical  Accelerometer  Gyroscope  Ultrasonic  Inclinometer

SensorsMicrocontroller Computer USB 5V Supply System Overview

Design Concept [10]

NameDescription CommunicationUSB interface Data Rate>39.8 kB/s. Power Requirements<500 mA. CalibrationUser calibration required to establish a region of less than 5° to pause cursor movement Range of MotionMust detect change in wrist movements up to ±45°. Technical Constraints

NameDescription UsabilityThe device must utilize the generic Windows mouse driver. ManufacturabilityThe enclosure must support a modular design and be comfortable for the user. Practical Constraints

 Ease of use  Plug and Play  One time start-up configuration  User re-calibration when needed  Simple Interface  Compatible with generic windows mouse driver  Easy customization Usability

 Lightweight and breathable  Module size limited by average hand size  Enclosure must be removable  Glove replacement  Cleaning Manufacturability

Special order components:  Motion-Sensing Unit  Microcontroller Unit Components

Motion Sensing Tradeoffs TechnologyProsCons CameraMinimum hardware construction Heavy coding and image processing InfraredVery inexpensiveRequires extremely high- speed electronics AccelerometerAnalog option that is easy to implement and provides uninterrupted data Low precision GyroscopeMost sensitive to rotational movement Special coding required to combat stabilization

Name Accelerometer Sensitivity (g) Gyroscope Sensitivity (°/sec) Data Type Device Package Price [?] 5DOF IMU Analog Breakout Board $49.50 [4] ADXL Analog Breakout Board $24.95 [6] LSM320DLTR Digital28-TFLGA $10.04 [5] ADXL PWM8-LLC $11.95 [7] Motion-Sensing Unit

Name Flash (kB) ADCSupportUSBPrice PIC18F27J bitDecreasingYes$4.96 [1] PIC24FJ32GB bitCurrentYes$4.52 [2] PIC24HJ32GP bitCurrentNo$4.44 [3] Microcontroller

JanuaryFebruaryMarchApril Discuss Sensors, Microcontroller, Data protocol, and Packaging Build Simulation PC-interface Prototype Finish Simulation Begin Package Implementation Prototype and Packaging Testing Timeline

Progress

PIC24FJ32GB002 5DOF- ADXL335 IDG500 Left/Right mouse clicks Status LEDs Testing and Evaluation

Accelerometer Testing

LabView Code

“Hello, World!”

Accomplished  Successfully used Windows drivers to interface with PC  Rudimentary mouse movements observed with deflection of accelerometers

PC Interface

Summary  Mouse design in need of innovation  Motion sensing technologies are ideal candidates for improvement  Accelerometers chosen as primary motion sensors  Coding created and modified for our prototype  PC interfacing achieved  Cursor movement corresponding with accelerometer movement

[1] (2012,Feb 22). “PIC18F27J53,” in Digi-Key [Online]. Available: [2] (2012,Feb 22). “PIC24FJ32GB002,” in Digi-Key [Online]. Available: ND/ ND/ [3] (2012,Feb 22). “PIC24HJ32GP202,” in Digi-Key [Online]. Available: ND/ ND/ [4] (2012,Feb 22). “5DOF IMU,” in Sparkfun [Online]. Available: [5] (2012,Feb 22). “LSM320DLTR,” in Digi-Key [Online]. Available: [6] (2012,Feb 22). “ADXL335,” in Sparkfun [Online]. Available: [7] (2012,Feb 22). “ADXL213,” in Sparkfun [Online]. Available: [8] (2012,Feb 22). “EDSAC0LFS,” in Digi-Key [Online]. Available: [9] (2012,Feb 22). “B3FS-4002P,” in Digi-Key [Online]. Available: [10] (2012, Feb, 28). References

Questions?