ZigBee - PowerPoint PPT Presentation

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ZigBee

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  1. ZigBee Calvin Choy David Kim Jason Chong Devin Galutira

  2. Terra Spoon Members • Calvin Choy • Time Manager, Picaxe Coding • David Kim • Parts Guy, Grant Writer, Networking Protocol • Jason Chong • Researcher, Web Designer, Minutes Keeper • Devin Galutira • Networking Protocol

  3. Project Overview • What is ZigBee? • Low power, low data wireless protocol • Conduct wireless sensing and control applications • No line of sight concerns • 100-300 ft range

  4. Comparison to Others Technologies • ZigBee • (WPAN) • 250 kbps • Standby 2uA • 32-60 KB memory • 300ft • Bluetooth • WPAN/WLAN • 1 Mbps • Standby: 200uA • 100+KB memory • 328ft range • WiFi • WLAN • Up to 54 Mbps • Standby: 20uA • 100+KB memory • 300ft range

  5. Project Overview - Goals • What can ZigBee do? • How does ZigBee work? • Learn Software and Hardware relationship • Experiment with ZigBee

  6. Project Overview - Goals • Evaluate current designs • Fix bugs • Make improvements and add-ons • Research • Think like a non “techie” • ZigBee for non-ZigBee people

  7. Project Overview - Goals • Identify a need • Disabled, elders, and children • Devise a prototype • Application to make life easier • Universal

  8. Overall Block Diagram of System Picaxe Submodules: • led indicators • additional IC chips, i.e. multiplexers, decoders • coding • power supply Xbee submodules: • power supply

  9. Picaxe to XBee connection

  10. Switching Circuit Relay Circuit

  11. Tasks Left to be Done • Hardware • Study and solve current bugs • Fabricate self printed circuit boards • Manufacture durable cases for the modules • Software • Learn more about transmitting data • UART • Buffers and Overflow • Implementing Sleep Mode • Educational Kit • Manual for non Zigbee People • Product Testing

  12. Potential Downfalls • Error in communication between modules • Undesired results • Bugs, bugs, bugs • Hardware and Software • Reducing size of modules & circuit boards • Powersupply • Different documentations suggest different power requirements • Running out of time

  13. Wireless Mouse via head controlZigbee Solution (Nice to Have Goal) • Study “old school” mice w/roller balls • Motion detected via velocity of spinning cog • Analyze the I/0 • Simultaneous X Y motion • Ergonomics • Optimal range of motion • Perceived field of vision • Create a harness for the head with Zigbee transmitter

  14. Gantt Chart