E-Book Content
Cover - 244-out_Layout 1 10/13/2010 11:35 AM Page 1
Build an Aircraft Data Logging System, p. 26 | Portable Power: A DIY Power Adapter, p. 58 | Thermal Energy Production, p. 66
THE
MAGAZINE
FOR
COMPUTER
A P P L I C AT I O N S November 2010 Issue 244
A PVDF Phased-Array Analog Front End Sound Generation with Three Basic Chips Solve Connectivity Issues Between Embedded Apps Digital Audio Spectrum Analyzer Professional Grounding Rules
PLUS DesignStellaris 2010
$7.50 U.S. ($8.50 Canada)
www.circuitcellar.com
A Look at Exemplary Design Projects from the U. S., Japan, France, & Beyond
C2_Layout 1 8/11/2010 11:02 AM Page 1
Low-cost Industrial
Serial to Ethernet Solutions t*OTUBOUMZOFUXPSLFOBCMFBOZTFSJBMEFWJDF t/PQSPHSBNNJOHJTSFRVJSFEGPSTFSJBMUP&UIFSOFUBQQMJDBUJPO t$VTUPNJ[FUPTVJUBOZBQQMJDBUJPOXJUIBEFWFMPQNFOULJU
SBL2e Chip
SBL2e 200
SBL2e 100
QPSUTFSJBMUP&UIFSOFUTFSWFS XJUIFJHIU"%DPOWFSUFSJOQVUT BOEPQUJPOBM41* *$ $"/ QFSJQIFSBMEFWJDFTVQQPSU
QPSUTFSJBMUP&UIFSOFUTFSWFS XJUIGPVS"%DPOWFSUFSJOQVUT PQUJPOBM*$QFSJQIFSBMTVQQPSU BOEQJOIFBEFS
QPSUTFSJBMUP&UIFSOFUTFSWFS XJUIGPVS"%DPOWFSUFSJOQVUT PQUJPOBM*$QFSJQIFSBMTVQQPSU BOE3+DPOOFDUPS
SBL2e X
Hardware Features 6QUPUISFFTFSJBMQPSUT .CQT&UIFSOFU VQUPEJHJUBM*0 CJU"%DPOWFSUFST PQFSBUJOHUFNQFSBUVSFUP$ CJUQFSGPSNBODF
&YUFSOBMQPSU TFSJBMUP&UIFSOFUTFSWFS XJUI34TVQQPSU
Software Features 5$16%15FMOFU)551NPEFT %)$14UBUJD*1TVQQPSU XFCCBTFEPS "5DPNNBOEDPOöHVSBUJPO Low Prices 4#-F$IJQ 2UZL %FWJDF1/4#-F$)*1*3
4#-F 2UZ %FWJDF1/4#-F*3
4#-F 2UZ,%FWJDF1/4#-F*3
4#-F9 2UZ %FWJDF1/4#-F9*3
4#-F9" 9 2UZ %FWJDF1/4#-F9"*3
SBL2e XA &YUFSOBMTFSWFSXJUIVQUP GPVS"%DPOWFSUFSJOQVUT VQUPFJHIUEJHJUBM*0BOEVQ UPtwo6"354 (one RS-232)
Need a custom solution? /FU#VSOFS4FSJBMUP&UIFSOFU%FWFMPQNFOU,JUTBSFBWBJMBCMFUPDVTUPNJ[FBOZ BTQFDUPGPQFSBUJPOJODMVEJOHXFCQBHFT EBUBöMUFSJOH PSDVTUPNOFUXPSL BQQMJDBUJPOT"MMLJUTJODMVEFQMBUGPSNIBSEXBSF "/4*$$ DPNQJMFS 5$1*1 TUBDL XFCTFSWFS FNBJMQSPUPDPMT 3504 BOE/#&DMJQTF*%& Information and Sales]TBMFT!OFUCVSOFSDPN Web]XXXOFUCVSOFSDPNTelephone]
9.qxp
8/7/2008
11:04 AM
Page 1
2_Layout 1 5/12/2010 7:18 AM Page 1
2_Layout 1 5/12/2010 7:18 AM Page 2
Task_Masthead_244_masthead.qxd 10/18/2010 12:53 PM Page 4
T
ASK MANAGER Radical Empirical Testing
November 2010 – Issue 244
A
4
reader recently told me his fascination with electronics began in childhood when he was shocked while playing with an electrical socket. Now that’s one way to convince yourself that electricity exists! Nihil in intellectu nisi prius in sensu,[1] right? Obviously, the reader lived to tell the story, become a professional engineer, and subscribe to Circuit Cellar. What’s truly interesting is that he wasn’t the first engineer to tell me that he first “discovered” electricity through his senses—that is, when it coursed through his body. I’ve heard a few similar stories during my years here at Circuit Cellar. Several readers literally jolted themselves into the field of electronics while sticking all sorts of objects (e.g., paper clips and forks) into sockets or messing with older re