Project

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Project 2Mobile Multiplayer Game
Tic-Tac-ToeProject 3TinyOS Sensing Application

• EE194WIR
• Matt Magpayo
• Matthew.magpayo_at_tufts.edu

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Project2 Mobile Tic-Tac-Toe

• Language Java
• Emulator Nokia S60 prototype emulator
• Multiple instances
• Nokia Connectivity Framework
• Short Message Service (SMS) communication

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Implementation

• Midlet format
• Game loop
• SMS Messagehandler

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Screenshots
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Screenshots (cont.)
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Screenshots (cont.)
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Project3 TinyOS Sensing Application

• Application Light/Temperature Sensing
• Language NesC
• Testing TOSSIM
• GUI TinyViz, GraphViz

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Implementation

• Sensor nodes and 1 Base Station
• Sensor node
• periodically takes light readings and sends a
  group of readings over radio to base station
• Base Station
• Forwards packets through serial port to PC
• Led Module used
• yellow LED is toggled when new packet sent
• red LED is on when the light sensor reading is
  above some constant value (0x0300 or 768)

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Routing Scheme

• Base Station simply broadcasts a beacon packet.
• Those who hear it
• Set one hop neighbor as base station.
• Broadcast beacon packet.
• Those who hear that
• Add to list of all neighbors who have path to
  base station
• Broadcast beacon packet.
• EtcTree network topology is created.
• When routing, node forwards data to random
  neighbor out the its list.

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Simulation

• TOSSIM/TinyViz TinyOS simulator
• Normally allows simulation of only ONE type of
  application.
• Fix Make code dependant upon the local address
  of node.
• IF TOS_LOCAL_ADDRESS 0 , use base station code
• ELSE use sensor code
• SerialFowarder
• Connects to TOSSIM
• MOTECOM address tossim-serial_at_localhost port0
• Listens to Node 0 (base station)
• Oscilloscope GUI
• Extracts/Displays data received from
  SerialFowarder packets.
• Allows graphing of multiple node data.

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TinyViz

• Node 0 as base station.
• ADC Readings Plug-in used to preset light data
  for testing.
• Used Values 0-700

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Serial Forwarder

• Read packets sent from Base Station (node 0)

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Oscilloscope GUI

• Preset Values
• All motes seen using channel 1
• Possibility to add more data channels (ex. temp)

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Questions?