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Feb. 2nd, 2005 TinyOS Technology Exchange II
The eyesIFX platform
Vlado HandziskiTechnical University Berlin
Filling in for:Thomas Lentsch Infineon Technologies, AG
TinyOS Technology Exchange IIFeb. 2nd, 2005 2
Infineon’s eyesIFX Platform
Developed by Infineon for the Energy-efficient self-organizing and collaborative wireless sensor networks project – EYES
TI MSP430 microcontroller family 64 kbps 868MHz ASK/FSK Infineon Wireless Transceiver
TDA5250 HW UART based byte interface towards the radio Integrated Temperature and Light sensors Full TinyOS software support provided by TU Berlin
TinyOS Technology Exchange IIFeb. 2nd, 2005 3
eyesIFXv2 Node Architecture
Antenna
SAW Filter
PtxControl
TDA5250
Power Supply
RX
TX
RSSI
Sensor Interface
Light Sensor
Temperature Sensor
RX-Data
TX-Data
USBJTAG
Interface
Serial Flash
MSP430F1611
TinyOS Technology Exchange IIFeb. 2nd, 2005 4
The eyesIFXv2 Mote
TinyOS Technology Exchange IIFeb. 2nd, 2005 5
TDA525x Block Diagram
TinyOS Technology Exchange IIFeb. 2nd, 2005 6
TDA525x - Feature List Technology 0.5µ 25GHz BiCMOS-Process Frequency bands 315MHz (TDA5251) 433MHz (TDA5255) 868MHz (TDA5250)
915MHz (TDA5252) (from Q2/05) Data rate 1..64 KBit/s Deviation / Mod. index 10..150KHz / mH > 2 Sensitivity ASK: < -110 dBm @ 50W, BER = 10-3 FSK: < -100 dBm @ 50W, BER = 10-3 Transmit power Pout up to +13 dBm @ 50 W Supply voltage 2.1..5.5V Current consumption TX: typ. 10mA RX: typ. 8 mA @ 3V Power down max. 100nA Temperature range -40°C / +85°C Self-polling with fast data rate detection easing CSMA protocol implementation, on-chip
data and channel filters set via I²C or SPI bus
TinyOS Technology Exchange IIFeb. 2nd, 2005 7
eyesIFXv2 Deployments TU Berlin’s WSN Testbed Testing WSN building automation applications in realistic
setting About 50 instrumented rooms, more then 120 nodes spread
on four floors of the TKN office building USB back channel allowing remote control and debugging
TinyOS Technology Exchange IIFeb. 2nd, 2005 8
Summary
Initially developed as research platform for the EYES project Targets the low-power end of the WSN application spectra Shows how the cost of the WSN platforms can be reduced by
reusing designs from related high volume markets TDA 5250 family originally developed for the “Remote key-less car
entry” application Node design influenced by Infineon’s wireless tire pressure
measurement solutions
eyesIFXv2 motes (868MHz) commercially available in Q2/05, after the end of the EYES project