ZigBee Calvin Choy David Kim Jason Chong Devin Galutira

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

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

Comparison to Others Technologies ZigBee (WPAN) (WPAN) 250 kbps 250 kbps Standby 2uA Standby 2uA KB memory KB memory 300ft 300ft Bluetooth WPAN/WLAN WPAN/WLAN 1 Mbps 1 Mbps Standby: 200uA Standby: 200uA 100+KB memory 100+KB memory 328ft range 328ft rangeWiFi WLAN WLAN Up to 54 Mbps Up to 54 Mbps Standby: 20uA Standby: 20uA 100+KB memory 100+KB memory 300ft range 300ft range

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

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

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

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

Picaxe to XBee connection

Switching Circuit Relay Circuit

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

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

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

Gantt Chart