Project Analog - January 2008 - (Page 9) tc1047a dEmo board microstrain’s Esg-link wirElEss strain sEnsor is thE first with built-in EnErgy harvEsting. The TC1047A Temperature to Voltage Converter PICtail Demo Board demonstrates how to interface the TC1047A Temperature to Voltage Sensor device to a microcontroller. This boartd can connect directly to the PICkit 1 Flash Starter Kit, providing a platform for code development and evaluation. The system designer will be able to use this design as an example of how to integrate an analog temperature sensor in their system. click here for more information. TurboLink mode can boost the data rate to 2 Mbits/s from the 250kbit/s ZigBee max. Since the chip will switch automatically between the two rates, designers can use the proprietary protocol with ZigBee implementations. The CC2431 System-on-Chip from Texas Instruments (Dallas, TX) is a ZigBee transceiver that can actually tell users where it is physically located. The chip’s RSSI-based location engine calculates the IC’s position based on the strength of the signal received from reference nodes with know locations, particularly useful in mobile sensor. The M2110 OEM Edition module from Crossbow Technology (San Jose, CA) is the size of a postage stamp, yet it provides all the circuitry a wireless sensor needs: a ZigBee-capable 2.4-GHz IEEE 802.15.4 transceiver, a processor with 512 kbytes of measurementdata flash memory, 128 kbytes of program flash memory, and analog and digital sensor interface. It has up to three times the range of comparable devices. The question of how to power remote wireless sensors has been commercially addressed by ESGLink, an energy-harvesting, wireless strain transmitter from MicroStrain (Williston, VT). Recently used to measure helicopter blade strain, the sensor has a piezoelectric film that harvests energy from the strain force so it can power the node indefinitely. network iMPleMentationS While some companies have waited for industry standards to develop to build a road into wireless networking others have charted their own paths. Said to be the first wireless platform built for industrial use from the ground up, the SureCross wireless network from Banner Engineering (Minneapolis, MN) features proprietary RF design, power management with battery and solar options, and low-power sensors. A complete system solution, it can handle real-world applications from municipal water monitoring to physical-plant energy management. The MeshScape wireless sensor networking software platform from Millennial Net (Burlington, MA) is a highly scalable efficient, and responsive protocol and networking system supported by nodes from the company and third parties. The company’s recently introduced 5424 Wi-Stat wireless thermostat addresses a practical problem: how to place a thermostat in an area that hadn’t initially been considered for thermal monitoring. It makes installing new HVAC system a lot easier too. An out-of-the-box solution, Primer Pack/IP from Arch Rock (San Francisco, CA) is the first sensor network that runs native IP end-to-end to let users create pilot wireless sensor networks tie into other IP nets. Contents Viewpoint Wireless sensor networks Temperature sensing technology Analog news Microchip analog page Thermal management overview Sample center microchipDIRECT Reference designs/ app notes Technical training • 9 · projeCt analog · jan 08 http://www.microchip.com http://www.microchip.com/analog http://www.microchip.com/analog http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en020414&part=TC1047ADM-PICTL http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2543¶m=en021419&pageId=79 http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2543¶m=en021419&pageId=79 http://sample.microchip.com/Default.aspx?testCookies=true http://www.microchipdirect.com/catalogselection.aspx?returnURL=default.aspx http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1469&filter1=function&redirects=appnotes http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1469&filter1=function&redirects=appnotes http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1423
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