1. Design Constraints Team 4 Mike Niksa, David Freidin Emily Blount, Ben Moeller

2.  An ability to wirelessly transmit a shot and receive a hit via Infrared  An ability to remotely enable and disable the gun/vest pair  An ability to control game operation using base station keypad  An ability to wirelessly communicate game statistics to base station via RF  An ability to provide user with local display of game information

5.  Minimize device footprint ◦ Use serial interfaces, all-in-one devices  Minimize power consumption ◦ Battery powered mobile packs  Near real-time wireless communication ◦ Score updates as play progresses  Inexpensive major components ◦ Multiple copies of gun/vest for game play  Durable Packaging ◦ Withstand high-adrenaline game scenarios

6. dsPIC30F4011 by Microchip -48kb Flash Program Memory -2,048 bytes RAM -30 general purpose I/O pins -40 pins total -Internal oscillator -6x PWM for IR transmission -2x UART, 1x SPI -10-bit A/D converter at 1000ksps for IR receiver -~$4 -2.5v to 5.5v range dsPIC33FJ32GP304 by Microchip -32kb Flash Memory -4,096 bytes RAM -44 pins, 30 general I/O -2xUART, 2xSPI, 1xI2C, 6xPWM -12-bit A/D converter -~$3 -3 to 3.6v range dsPIC30F2023 by Microchip -12kb Flash, 512byte RAM -44pins, 35 general I/O -1xUART, 1xSPI, 1xI2C, 8xPWM -10-bit A/D converter 2000ksps -~$4 -3.0 to 5.5v range

7. MT/LT by Linx Technologies -Requires two stages: Transceiver to Codec Codec to Micro -Parts more expensive (~$22) -One specific frequency -Low current ~14mA send, ~8mA receive -10,000 bps up to 3,000 ft -No external parts required -Detailed many-to-one scenarios in datasheet -Nearly “turnkey” RF solution CC1110RTK by Texas Instruments -External Oscillator, Capacitors -Nearly any ISM frequency 300- 928Mhz -SPI interface controllable -Inexpensive (~$6) -Adjustable data rate (1.2- 500kbaud) MC33696 by Freescale -Detailed integration schematics -SPI interface directly to Micro -Inexpensive (~$6) -~14mA send, ~10mA receive -External crystal oscillator req’d -Six frequency bands