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SmartThink Remote System. Team Cyclops Justin Bewley Winter Jojola Florence Manega Paul Roberts Denknesh Temesgen. Introduction. SmartThink Remote System Designed for people with disabilities Aids in performing everyday tasks Controls television set

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Smartthink remote system l.jpg

SmartThink Remote System

Team Cyclops

Justin Bewley

Winter Jojola

Florence Manega

Paul Roberts

Denknesh Temesgen


Introduction l.jpg
Introduction

  • SmartThink Remote System

    • Designed for people with disabilities

    • Aids in performing everyday tasks

      • Controls television set

      • Controls objects attached to SmartThink adapters  


Conceptual design l.jpg
Conceptual Design

  • Infra Red transmission

    • Line of sight + 10 degrees

    • Learns Pre-programmed IR codes  

  • Incorporates an LED array attached to a target CPU

    • LEDs correspond to state of FPGA state machine  


Conceptual design continued l.jpg
Conceptual Design continued…

  • Head mounting

    • Digital compass

      • Imitate head motion

    • Inclinometers

      • Levels; determine vertical angle of sight


Description of working system l.jpg
Description of working system

  • Motherboard

    • Microcontroller

    • FPGA

    • Memory

  • IR Transmission

    • Tx / Rx

    • Adapter

  • Sip/Puff Switch

  • Button Switch

  • Software




Micro controller l.jpg
Micro-controller

Shown below is the MC68HC11, with the clock (8MHz) and reset button


Schematics continued l.jpg
Schematics continued

Driver for the address and data (MC74HC245) latch for the data (MM74C373)


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Schematics continued

Below is the schematics for the ROM and RAM





Ir reception l.jpg
IR Reception

  • Television Set

  • Adaptor to go on other devices, i.e. fan

    • Regulated by 120Vac.

    • Processor checks for IR codes

    • Relay switches power flow to peripheral device


Sip puff switch l.jpg
Sip/Puff Switch

  • Origin Instruments, Corporation

  • Zero-Power Design, No AC Plug and No Batteries

  • The metal switch box contains the devices that

    convert sips & puffs to electrical switch closures

  • Switch events are accessed from the 1/8"

    microphone connectors on the end panel

  • Switches are designed for low current electronic loads

  • Retail: $295.00



Software breakdown l.jpg
Software Breakdown

  • Interrupt from XCS10

  • Serial Data Out

  • Serial Data In

  • Find open slot for data


Interrupt from xcs10 l.jpg
Interrupt from XCS10

  • (State is latched to data bus from XCS10)

  • Processor reads in state from data bus

  • Based on state, read in from appropriate flash memory preset location (SPI)

  • Send data across Serial TX until signal is complete (SCI)

  • Send data out serially


Serial data out memory addr z l.jpg
Serial Data Out(memory addr. Z)

  • For(I = 0; I < IR signal length; I++)

    • Gather memory byte from Z+I

    • Send data along serial line


Serial data in void l.jpg
Serial Data In(void)

  • For(I = 0; I < IR sig. Len; I++)

    • Put memory byte from serial line into location $TEMP+I

  • Find open pre-selected data space->Y

  • If(Y == ERROR)

    • Memory space all used up, flash ERROR

    • Zero out memory space @ Temp

  • Else, move memory from TEMP to Y


Find open data space void l.jpg
Find open data space(void)

  • Based on config byte at 0x0000, find open space in memory for new code (0 = mem in use) (1 = mem open)

  • If no open space, return ERROR

  • If there is an open space, return which space and declare the space used


Parts list l.jpg
Parts List

  • Motherboard

    • HC11

    • Spartan XCS10

  • IR

    • TX-IR (Control chip)

    • 4MHz (Resonator)

    • ZTX601 (Darlington circuit)

    • IR LED (+ 10 deg high power)

    • TSOP-1140 (IR receiver)

    • MAX223CPP (DIP-drives voltage to 12V)

    • PIC 16C84-04 (Controller for adapter)


Parts list continued l.jpg
Parts List Continued

  • Switches

    • Sip / Puff

    • Buttons

  • Misc

    • Batteries

      • 12 Vdc 4Ah NiMH (2)

    • Servos

      • Hitec Hobby Servos (2)



Milestone 1 l.jpg
Milestone 1

  • Boot up HC11

  • FPGA Runs Basic Logic

  • State Machine Logic Encoded

  • Transmitter/Receiver Hardware Built


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Milestone 2

  • FPGA Debugged and Working

  • Read/Write to RAM

  • IR Signals Can be Learned

  • Switches Interfaced with FPGA


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Division of Labor

  • Motherboard – Winter, Justin, Denknesh

  • IR – Paul, Florence, Justin

  • Sip/Puff – Florence, Denknesh

  • Boot Code – Paul

  • User Manual - Winter

  • Technical Reference Manual - Everyone



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