Rouse Wireless Mouse Glove Seth Martin Andrew Wood Todd Yarrington

What is a Rouse? A wearable mouse A design motivated by a survey A glove that… Obtains function information Transmits the information A receiver unit that… Receives the information Transfers it to the PC as a cursor A design motivated by a survey

Requirements Easy to use Manageable Ergonomic Wireless Plug ‘n Play Motion controlled Manageable Small size, lightweight Ergonomic Comfortable, adjustable, breathable Wireless Plug ‘n Play

A Demonstration of Rouse Operation

Input  Output Behavior Hand movements Hand tilting  cursor movement Finger bends  button clicks Index  left click Middle  right click Pinkie  scroll mode Thumb hold  state change Idle Active

System Structure

Transmitter

Accelerometer (ADXL202EB) Requirements Detect hand motion/tilt Alternatives Tilt Sensor Cost $49.95 I/O Behavior Dual-axis X/Y tilting PWM acceleration signals Variable duty cycle

Flex Sensors Requirements Alternatives Cost I/O Behavior Detect finger movements (clicks) Alternatives Accelerometers Cost FREE Samples I/O Behavior Variable resistance via bending 75k - 320k

Flex Sensor (cont’d)

RF Transmitter (TWS-434A) Requirements Wireless data transfer Alternatives Infrared (IR) Cost $8.50 I/O Behavior Serial data input line 2400 bps max. throughput 433MHz AM modulation

PIC18F252 Requirements Alternatives Cost I/O Behavior ADC, 60Hz refresh, small form factor, memory Alternatives Motorola, Other MCUs Cost $8.80 I/O Behavior Gathers click status 4 ADC pins Decipher tilt status Serial data for transmission

Firmware

Data

Data Packet Structure

Receiver

RF Receiver (RXLC-434) Requirements Alternatives Cost I/O Behavior Wireless data reception Alternatives Infrared (IR) Cost $28.95 I/O Behavior 433MHz AM demodulation Serial data line 5000 bps max. data reception

USB Chip (PDIUSBD12) Requirements Alternatives Cost I/O Behavior Plug & Play Alternatives Parallel port, Serial port, PS/2 Cost $59.00 I/O Behavior Parallel data and address port 8-bits Bidirectional Handles signal leveling layers USB 2.0 Compliant

PIC18F452 Requirements Alternatives Cost I/O Behavior Pins, speed, memory Alternatives Motorola, Atmel, TI Cost $9.75 I/O Behavior Data Packet from receiver Updates USB State Buffers Sends requested data through D12

Firmware

Complete Budget Breakdown Quantity Supplier Unit Price Cost Transmitter/Receiver   PIC18F252I/SP 1 Digikey $8.80 PIC18F452 $9.75 Flex Sensors 4 Spectra Symbol $10.00 FREE ADXL202EB accelerometer Behrend $49.95 PDIUSB Kit USBdeveloper.org $59.00 RXM-433-LC-S $28.95 TWS434A Reynolds Electronics $8.50 Miscellaneous $44.34 Shipping $21.04 Total $180.38

Future Improvements Greater RF Bandwidth 2.4/5.8Ghz Battery recharge functionality Receiver  recharge unit Aesthetic appearance Smaller footprint Custom enclosure

Any Questions?