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Wireless Sensor Networks with Motev’s Telos B Mote

Wireless Sensor Networks with Motev’s Telos B Mote. Prof. Lisa Frye, M.S. David J. Hooley, Ph. D. Department of Mathematics and Computer Science Kutztown University Kutztown, PA . What is a Mote?. Mote: A small particle: speck Webster’s Ninth New Collegiate Dictionary

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Wireless Sensor Networks with Motev’s Telos B Mote

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  1. Wireless Sensor Networks with Motev’s Telos B Mote Prof. Lisa Frye, M.S. David J. Hooley, Ph. D. Department of Mathematics and Computer Science Kutztown University Kutztown, PA

  2. What is a Mote? • Mote: A small particle: speck • Webster’s Ninth New Collegiate Dictionary • Usage appears with U.C. Berkeley’s Smart Dust development

  3. What is a Mote? • Small, low power single board computer with a radio for wireless communication.

  4. Evolution of the MoteInitial Platform • 4Mhz, 8bit MCU 512 bytes RAM, 8K ROM • 900Mhz Radio 10-30 ft. range • Temperature Sensor • Light Sensor • LED outputs • Serial Port

  5. Evolution of the MoteCurrent state-of-the-art: Telos Rev B

  6. Evolution of the MoteCurrent state-of-the-art: Telos Rev B Texas Instruments MSP430 Microcontroller 8 MHz Processor Speed 10 kB RAM 48 kB Program Space ADC, DAC, UART, I2C, SPI, DIO Low Power Fast Wakeup

  7. Evolution of the MoteCurrent state-of-the-art: Telos Rev B Chipcon Wireless Transceiver 250 kbps data rate 2.4 GHz IEEE 802.15.4 (Zigbee) Programmable power (0 to –25 dbm) Integrated onboard antenna (opt. SMA conn) Range: up to 50m indoors / 125m outdoors

  8. Evolution of the MoteCurrent state-of-the-art: Telos Rev B Optional Onboard Sensors Photodiodes Humidity Temperature Input/Output Ports Analog to Digital Digital I/O

  9. Evolution of the Mote Future: Fully integrated on a single chip

  10. The ZigBee Standard • The ZigBee Alliance - 120+ member companies • www. zigbee.org • Open standard • Typically involved with specifying and standardizing the hardware and lower layers of the communications protocol

  11. Customer The Zigbee Standard APPLICATIONS APPLICATION INTERFACE SECURITY NETWORK LAYER Star/Cluster/Mesh Zigbee Alliance MAC LAYER IEEE 802.15.4 MAC LAYER PHY LAYER 2.4 GHz 915MHz 868 MHz Silicon Application ZigBee Stack From Gutierrez IEEE 802.15.4

  12. Other Recent ZigBee Motes • freescale semiconductor (Motorola) • MC1319x RF Transceivers • MC9S08GT MCU (HCS08 8 bit microcontroller) • Accelerometers • Pressure Sensors • Electric Field Sensors

  13. Telos B Mote Hardware

  14. Telos B Mote Hardware

  15. Telos B Mote Hardware

  16. Telos B Mote Hardware

  17. Typical Mote – PC Configuration

  18. Software Applications:Serial Forwarder, Listen

  19. Software Applications:Oscilloscope Display

  20. Wireless Counter Demonstration Block Diagram Mote – Receiver USB – Serial Driver Wireless Link SerialForwarder PC with Listen app Temp Humd 01 01 01 01 01 01 02 02 02 02 02 02 Mote - Transmitter Counter Software

  21. Counter Software for Mote The CntToRfmAndLeds Application CntToLedsAndRfm.nc configuration CntToLedsAndRfm {}implementation {  components Main, Counter, IntToLeds, IntToRfm, TimerC;  Main.StdControl -> Counter.StdControl;  Main.StdControl -> IntToLeds.StdControl;  Main.StdControl -> IntToRfm.StdControl;  Main.StdControl -> TimerC.StdControl;  Counter.Timer -> TimerC.Timer[unique("Timer")];  IntToLeds <- Counter.IntOutput;

  22. Wireless Gas Sensor Demonstration Block Diagram Mote – Receiver Gas Sensor USB – Serial Driver Wireless Link SerialForwarder PC with O-scope App Temp Humd Mote - Transmitter

  23. Software Applications The Oscilloscope application The mote application we use in this lesson is found in apps/Oscilloscope. It consists of a single module that reads data from the photo sensor. For each 10 sensor readings, the module sends a packet to the serial port containing those readings. The mote only sends the packets over the serial port.   (To see how the data can be sent over the radio see apps/OscilloscopeRF.)

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