Group 5 – Universal Exports Mike Klockow Dan Sparks Jon Hopp Ed Sheriff

Wireless Ordering Device Allow Customer to view limited menu of items (Appetizers, Drinks) Allow Customer to view limited menu of items (Appetizers, Drinks) Similar to current seating devices, with an LCD Screen and Navigation Buttons Similar to current seating devices, with an LCD Screen and Navigation Buttons

Wireless Ordering Device Device will transmit order once finished and flash lights once table is ready Device will transmit order once finished and flash lights once table is ready Base Module will attach to computer serial port, terminal program will receive orders. Base Module will attach to computer serial port, terminal program will receive orders.

Computer Interface Base connects to computer by Serial Port Base connects to computer by Serial Port Receiver/Transmitter Receiver/Transmitter Simple Microprocessor Simple Microprocessor

Coaster Interface Transmitter/Receiver Transmitter/Receiver Low-Power Microprocessor Low-Power Microprocessor LCD Display (no Backlight) LCD Display (no Backlight) Input Buttons Input Buttons

Component Rationale ATmega162V 16 Kbytes Flash 16 Kbytes Flash V VCC V VCC 0.5 Kbytes EEPROM 0.5 Kbytes EEPROM 1 Kbytes SRAM 1 Kbytes SRAM 35 pins 35 pins 1 SPI + 2 USART 1 SPI + 2 USART

Component Rationale LCD Display Low Cost Low Cost T6963C Display Controller built in T6963C Display Controller built in 8 Kbytes memory 8 Kbytes memory Hantronix 128x128 Graphics Display Hantronix 128x128 Graphics Display

Component Rationale Transceiver Bluetooth/ Unnecessary Bluetooth/ Unnecessary Low Data Rate Low Data Rate Low Power Consumption Low Power Consumption Easy Control and Interface Easy Control and Interface Atmel AT86RF211 Atmel AT86RF211

Packaging Design Guest Paging Systems Small size and weight Small size and weight UHF MHz at 2 watts of power UHF MHz at 2 watts of power Vibrates along with flashing LEDs Vibrates along with flashing LEDs

Packaging Design NTN Playmaker 900 MHz transceiver 900 MHz transceiver 8-line back-lit LCD 8-line back-lit LCD Read questions on a TV screen Read questions on a TV screen Send and receive data through a handheld unit Send and receive data through a handheld unit

Packaging Design Materials List: LCD Display LCD Display 5 push button switches 5 push button switches 16 LEDs 16 LEDs 5 Volt Wall-Wart 5 Volt Wall-Wart 6” x 4” x 2” Project Box 6” x 4” x 2” Project Box 3” x 2” x 1” Project Box 3” x 2” x 1” Project Box DB-9 Connector DB-9 Connector

Packaging Design -Dimensions in inches

Packaging Design -Dimensions in inches

WOrD Remote Device Schematic ATmega162V microcontroller used to: ● Interface with menu navigation buttons ● Interface with bank of LEDs ● Interface with Toshiba T6963C LCD controller - 8-bit data bus to write to onboard 8K SRAM - Read and Write control signals ● Interface with RF module - Using USART1 of μC with grounded synchronous pin to make it a UART - One Interrupt pin used for incoming data alert - 3 I/O pins for initialization of module - Details on RF Page

WOrD Remote Device Schematic Hantronix 128x128 graphic LCD module: ● Uses Toshiba T6963C controller with 8K SRAM to store menu information ● 5V Logic Device - Necessary to translate between 3.3V μC logic using Texas Instruments 3.3V/5V logic level converter. ● 5V and -15V power supplies needed ● 5V and -15V power supplies needed - Details on power supply page ● 9mA supply current, 4mA driving current needed (low power) ● 9mA supply current, 4mA driving current needed (low power)

WOrD Remote Device Schematic AT86RF211 smartRF transceiver: ● Low voltage “single chip” RF transceiver - FSK modulation at data rates up to 64Kbps - Runs at 3.3V - Few external component selections ● Data transmitted through UART, Chip setup done through 2 I/O pins and 1 interrupt. - IRQ sent to microcontroller when good data is received. - Data transfer through UART, Automatically starts sending data when bits received on data pin - Microcontroller sets registers on the transceiver for control

WOrD Remote Device Schematic Power supply: ● 6V battery power supply ● 3.3V, 5V and -15V levels needed - Texas Instruments LP produces 5V signal for LCD - Two Texas Instruments LP produce separate signals for 3.3V signal for μC and RF module - 3.3V signal is also used with Maxim MAX776 Voltage Inverter to produce -15V signal

WOrD Base Device Schematic ● ATmega162V microcontroller used as an interface between the PC and the AT86RF211 RF transceiver ● AT86RF211 RF transceiver implemented identically to the transceiver in the Remote Device ● AT86RF211 RF transceiver implemented identically to the transceiver in the Remote Device ● Maxim MAX3222 transceiver used to translate between PC serial port signal (RS-232) and μC (CMOS) ● All devices operate at 3.3V. A 5V “wall-wart” to a 3.3V regulator is used as power supply