Project #2
Mobile Multiplayer Game: Tic-Tac-Toe
Project #3
TinyOS Sensing Application
EE194WIR
Matt Magpayo
[email protected]
Project#2 Mobile Tic-Tac-Toe
• Language: Java
• Emulator: Nokia S60 prototype
emulator
– Multiple instances
– Nokia Connectivity Framework
• Short Message Service (SMS)
communication
Implementation
• Midlet format
• Game loop
• SMS Messagehandler
Screenshots
Screenshots (cont.)
Screenshots (cont.)
Project#3 TinyOS Sensing Application
• Application: Light/Temperature Sensing
• Language = NesC
• Testing: TOSSIM
• GUI: TinyViz, GraphViz
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)
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.
• Etc…Tree network topology is created.
• When routing, node forwards data to random neighbor
out the its list.
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@localhost port:0
• Listens to Node 0 (base station)
• Oscilloscope GUI
– Extracts/Displays data received from SerialFowarder packets.
– Allows graphing of multiple node data.
TinyViz
• Node 0 as base station.
• “ADC Readings” Plug-in
used to preset light data
for testing.
– Used Values 0-700
Serial Forwarder
• Read packets
sent from Base
Station (node 0)
Oscilloscope GUI
• Preset Values
• All motes seen
using channel 1
• Possibility to add
more data channels
(ex. temp)
Questions?