|
|
| (60 intermediate revisions by 39 users not shown) |
| Line 1: |
Line 1: |
| − | [http://sthuckst.ifrance.com/sony-presenta/ sony presenta formula one per psp] [http://veredda.ifrance.com/resources/zyxel-m.htm zyxel 650m] [http://mejordan.ifrance.com/www-scopare.htm www scopare it] [http://nipierre.ifrance.com/articles/sony-walkman2.htm sony walkman] [http://mejordan.ifrance.com/tv-color20.htm tv color hdmi] [http://trermer.ifrance.com/small/these-words/ these words natasha] [http://maramsde.ifrance.com/directory/musica-nova/ musica nova bennato] [http://bekleem.ifrance.com/index3_250.html home] [http://mejordan.ifrance.com/www-regionecampania.htm www regionecampania it] [http://nipierre.ifrance.com/articles/nvidia-premia.htm nvidia premia i giochi del settore mobile] [http://bekleem.ifrance.com/content/la-casa24/ la casa degli zombi] [http://maramsde.ifrance.com/directory/plastificatrice-rexel/ plastificatrice rexel] [http://bekleem.ifrance.com/content/iwan-i/ iwan i delfin czarne oczy] [http://trermer.ifrance.com/index0_500.html home] [http://trermer.ifrance.com/small/prezzo-windows/ prezzo windows xp] [http://mejordan.ifrance.com/raffaele-tedone.htm raffaele tedone] [http://nipierre.ifrance.com/index4_500.html homepage] [http://nipierre.ifrance.com/articles/brigitta-di.htm brigitta di cronache marziane] [http://sthuckst.ifrance.com/index2_500.html map] [http://veredda.ifrance.com/resources/batticuore.htm batticuore] [http://maramsde.ifrance.com/directory/hyundai-coupe3/ hyundai coupe] [http://maramsde.ifrance.com/index3_500.html map] [http://veredda.ifrance.com/resources/terios-cx.htm terios cx] [http://mejordan.ifrance.com/colant.htm colant] [http://mejordan.ifrance.com/brigite-lahaie.htm brigite lahaie] [http://mejordan.ifrance.com/index3_1000.html homepage] [http://bekleem.ifrance.com/content/westlife-coast1/ westlife coast to coast] [http://bekleem.ifrance.com/index0_500.html homepage] [http://sthuckst.ifrance.com/star-tatto/ star tatto] [http://mejordan.ifrance.com/ariston-frigorifero1.htm ariston frigorifero no frost] [http://nipierre.ifrance.com/articles/bernardino-rizzi.htm bernardino rizzi] [http://maramsde.ifrance.com/directory/caramelos-cianuro/ caramelos cianuro] [http://bekleem.ifrance.com/content/www-google12/ www google c0m pe] [http://maramsde.ifrance.com/index3_500.html map] [http://maramsde.ifrance.com/directory/redline/ redline] [http://mejordan.ifrance.com/argo-pompa1.htm argo pompa calore dual] [http://mejordan.ifrance.com/l-equilibrista1.htm l equilibrista pupo] [http://maramsde.ifrance.com/directory/pokemoon/ pokemoon] [http://mejordan.ifrance.com/agriturismi-piemonte.htm agriturismi piemonte] [http://nipierre.ifrance.com/articles/giochi-spiderman.htm giochi spiderman] [http://sthuckst.ifrance.com/saitek-cyborg1/ saitek cyborg force feedback] [http://mejordan.ifrance.com/indumenti-usati.htm indumenti usati] [http://veredda.ifrance.com/resources/rochester-new.htm rochester (new york)] [http://maramsde.ifrance.com/directory/maschi-/ maschi conto femmine] [http://sthuckst.ifrance.com/gyr-radu/ gyr radu] [http://lokelseyn.ifrance.com/i-m14/ i m whit you] [http://maramsde.ifrance.com/directory/la-via5/ la via del sud] [http://maramsde.ifrance.com/directory/mivar3/ mivar 17] [http://mejordan.ifrance.com/toto.htm toto 4] [http://sthuckst.ifrance.com/logitech-d/ logitech 3d pro] [http://nipierre.ifrance.com/articles/rome-total2.htm rome total war pc] [http://trermer.ifrance.com/small/scampi/ scampi] [http://sthuckst.ifrance.com/dvd-decrypter/ dvd decrypter manuale] [http://maramsde.ifrance.com/directory/gazzetta-ufficiale6/ gazzetta ufficiale regione sicilia] [http://sthuckst.ifrance.com/index3_250.html url] [http://nipierre.ifrance.com/articles/cd-r2.htm cd r princo] [http://nipierre.ifrance.com/index0_500.html map] [http://lokelseyn.ifrance.com/nvidia-quadro6/ nvidia quadro fx1300] [http://bekleem.ifrance.com/content/lavatrici-rex3/ lavatrici rex avant] [http://veredda.ifrance.com/resources/armored-core2.htm armored core continua su playstation 2] [http://veredda.ifrance.com/resources/di-sere.htm di sere nere] [http://trermer.ifrance.com/small/scene-del1/ scene del film irreversible] [http://bekleem.ifrance.com/content/epson-stylus22/ epson stylus pro 9000] [http://lokelseyn.ifrance.com/www-canale/ www canale5 it] [http://bekleem.ifrance.com/index1_500.html page] [http://mejordan.ifrance.com/temi-di2.htm temi di narrativa] [http://maramsde.ifrance.com/directory/videogiochi-pc1/ videogiochi pc spiderman] [http://bekleem.ifrance.com/content/jukebox-zen1/ jukebox zen xtra] [http://lokelseyn.ifrance.com/rage-from/ rage from the cradle to the stage] [http://maramsde.ifrance.com/directory/palmare-con8/ palmare con porta usb] [http://lokelseyn.ifrance.com/frankie-negron/ frankie negron] [http://bekleem.ifrance.com/content/canon-wdh/ canon wdh34] [http://mejordan.ifrance.com/index3_1000.html homepage] [http://veredda.ifrance.com/resources/villa-sardegna.htm villa sardegna] [http://sthuckst.ifrance.com/index1_250.html site] [http://maramsde.ifrance.com/index1_1000.html index] [http://veredda.ifrance.com/resources/dj-lasha1.htm dj lasha giulia] [http://trermer.ifrance.com/small/dancing-house/ dancing house] [http://nipierre.ifrance.com/articles/hipo.htm hipo] [http://maramsde.ifrance.com/directory/realtek/ realtek] [http://trermer.ifrance.com/small/mp-acer1/ mp3 acer advanced 1gb] [http://nipierre.ifrance.com/articles/altoparlanti-home.htm altoparlanti home theater] [http://sthuckst.ifrance.com/dreaming-my/ dreaming my dreams] [http://bekleem.ifrance.com/content/my-happy/ my happy ending] [http://veredda.ifrance.com/resources/i-ciapa.htm i ciapa la galeina] [http://nipierre.ifrance.com/index4_500.html homepage] [http://bekleem.ifrance.com/content/foto-federica/ foto federica fontana nuda] [http://lokelseyn.ifrance.com/ian-parker/ ian parker whilst the wind] [http://trermer.ifrance.com/small/culo-grande/ culo grande] [http://maramsde.ifrance.com/index0_500.html url] [http://sthuckst.ifrance.com/konica-minolta29/ konica minolta dimage s404] [http://maramsde.ifrance.com/directory/posizionamento-testa1/ posizionamento testa ai motore ricerca] [http://trermer.ifrance.com/index0_500.html home] [http://trermer.ifrance.com/small/web-cam5/ web cam spazio] [http://mejordan.ifrance.com/venezia-nel.htm venezia nel 700] [http://maramsde.ifrance.com/index3_500.html map] [http://trermer.ifrance.com/index2_500.html homepage] [http://maramsde.ifrance.com/directory/l-americano2/ l americano decapitato] [http://veredda.ifrance.com/resources/panasonic-batterie.htm panasonic batterie] [http://nipierre.ifrance.com/articles/cam-livigno.htm cam livigno] [http://www.ccrs.uzh.ch/user/root/ndnunx.html Classifica banche italiane] [http://www.worthwhilehosting.com/banners/auto/psxnqi.html Gulliver concorso rcs it] [http://www.worthwhilehosting.com/banners/auto/oquous.html Buy hydrocodone] [http://www.ccrs.uzh.ch/user/root/vhovhu.html Vendita vino online] [http://www.ccrs.uzh.ch/user/root/gagrkj.html Confesercenti] [http://www.ccrs.uzh.ch/user/root/frxmpt.html Prestito belluno personale] [http://www.startonlineweb.com/help/new/tremnd.html Bonifica amianto] [http://www.worthwhilehosting.com/banners/auto/kvrskg.html Agenzia immobiliare sulmona] [http://www.ccrs.uzh.ch/user/root/vrgubn.html Enel gas] [http://www.hiidenkivenpaivakoti.fi/help/new/qjsegn.html Diciottenni amatoriali] [http://www.ccrs.uzh.ch/user/root/koadjr.html Camping gear] [http://www.startonlineweb.com/help/new/kpljer.html Elettrostimolatore casa vendita] [http://www.worthwhilehosting.com/banners/auto/hoqrad.html Matita] [http://www.worthwhilehosting.com/banners/auto/ppinmv.html Webmail telecom italia it] [http://www.hiidenkivenpaivakoti.fi/help/new/kwiqqb.html Www italiacercami com] [http://www.startonlineweb.com/help/new/rqhlps.html Jeans miss sixty] [http://www.ccrs.uzh.ch/user/root/hvwvom.html Gurs pa cnr it] [http://www.worthwhilehosting.com/banners/auto/dncomu.html Svizzera shopping] [http://www.ccrs.uzh.ch/user/root/mqqqwm.html Auto roma concessionaria] [http://www.hiidenkivenpaivakoti.fi/help/new/chkrjb.html Quarantenni nude] [http://www.ccrs.uzh.ch/user/root/piseuh.html Sito ufficiale roberta missoni] [http://www.ccrs.uzh.ch/user/root/qgltti.html Stazioni meteo] [http://www.startonlineweb.com/help/new/dahhkw.html Pure cfnm] [http://www.worthwhilehosting.com/banners/auto/juddhq.html Www rizzo it] [http://www.startonlineweb.com/help/new/kgswqs.html Little nymphet] [http://www.startonlineweb.com/help/new/sadvrf.html Corso aggiornamento estetista] [http://www.ccrs.uzh.ch/user/root/bmvpmb.html Chirurgia obesita] [http://www.hiidenkivenpaivakoti.fi/help/new/kfvgek.html Produzione prodotto abbassare trigliceride] [http://www.ccrs.uzh.ch/user/root/silirw.html Biliardo] [http://www.ccrs.uzh.ch/user/root/dpkoel.html Gioco tetris] [http://www.worthwhilehosting.com/banners/auto/dtmctq.html Tgm] [http://www.ccrs.uzh.ch/user/root/iopdwg.html Un mondo di donnine] [http://www.ccrs.uzh.ch/user/root/vahier.html Tatuaggio cinesi] [http://www.hiidenkivenpaivakoti.fi/help/new/feltmr.html Numerologia cinese] [http://www.worthwhilehosting.com/banners/auto/nmxvgs.html Xnxx com] [http://www.startonlineweb.com/help/new/jhrbkq.html Rancid] [http://www.startonlineweb.com/help/new/vkvxep.html Torino promod] [http://www.startonlineweb.com/help/new/mitnor.html Annuncio auto] [http://www.ccrs.uzh.ch/user/root/aqahpx.html Donna rumene] [http://www.ccrs.uzh.ch/user/root/saqobb.html Porno donne grasse gratis] [http://www.startonlineweb.com/help/new/rhgsoj.html Csa it] [http://www.hiidenkivenpaivakoti.fi/help/new/gwuhip.html Spandau ballet] [http://www.startonlineweb.com/help/new/sowsia.html Gioco spider man] [http://www.startonlineweb.com/help/new/dcktpp.html Livia azzariti] [http://www.worthwhilehosting.com/banners/auto/ptxrlh.html Brema] [http://www.worthwhilehosting.com/banners/auto/xbpubj.html Macelleria] [http://www.ccrs.uzh.ch/user/root/meggqx.html Japan xxx] [http://www.startonlineweb.com/help/new/nflrjg.html Webtelemaco infocamera it] [http://www.startonlineweb.com/help/new/ukcioj.html Orologio guess] [http://www.startonlineweb.com/help/new/lvqnhq.html Manpower it] [http://www.hiidenkivenpaivakoti.fi/help/new/dgfoxb.html Alfabeto keywords prestito liquidita] [http://www.startonlineweb.com/help/new/crootk.html Monologhi film] [http://www.hiidenkivenpaivakoti.fi/help/new/advsmx.html Costruzione piscina] [http://www.ccrs.uzh.ch/user/root/fhfbdr.html Design cucine classiche] [http://www.ccrs.uzh.ch/user/root/qtrcaj.html Albergo due stella lisbona] [http://www.startonlineweb.com/help/new/ijxito.html Video saffico] [http://www.worthwhilehosting.com/banners/auto/bawrjg.html Quoziente intellettivo] [http://www.startonlineweb.com/help/new/xrqucf.html Dragonmoon xxx] [http://www.worthwhilehosting.com/banners/auto/bgjbnn.html Affitto barche] [http://www.ccrs.uzh.ch/user/root/rvqovi.html Albergo economico bordeaux] [http://www.hiidenkivenpaivakoti.fi/help/new/qoufkn.html Filmografia schicchi] [http://www.ccrs.uzh.ch/user/root/fospob.html Immagini folletti] [http://www.hiidenkivenpaivakoti.fi/help/new/ombpus.html Il giornale] [http://www.ccrs.uzh.ch/user/root/bihktl.html Negre ciccione] [http://www.startonlineweb.com/help/new/tcwosi.html Mariangela giordano] [http://www.ccrs.uzh.ch/user/root/dqpmwt.html Valentino finanza online] [http://www.worthwhilehosting.com/banners/auto/caobqn.html Schermo piatto pc] [http://www.ccrs.uzh.ch/user/root/pgaqtu.html Clipart donne] [http://www.worthwhilehosting.com/banners/auto/pjraqi.html Foto amatoriali nudisti] [http://www.hiidenkivenpaivakoti.fi/help/new/uphest.html Santino punto moda saronno] [http://www.worthwhilehosting.com/banners/auto/mcrkqk.html Lexington steele] [http://www.worthwhilehosting.com/banners/auto/emfjex.html Munich scarpa spaccio] [http://www.ccrs.uzh.ch/user/root/qcbiio.html Enrico ruggeri] [http://www.ccrs.uzh.ch/user/root/bmqpio.html Gigi dalessio video cammino dell eta] [http://www.startonlineweb.com/help/new/hhgsac.html Monica cruz] [http://www.worthwhilehosting.com/banners/auto/tiasog.html Porno pisciate] [http://www.startonlineweb.com/help/new/wkflja.html Donne grasse gratis] [http://www.hiidenkivenpaivakoti.fi/help/new/jfoixj.html Mature sex free] [http://www.worthwhilehosting.com/banners/auto/lrjehv.html Residence mare toscana] [http://www.ccrs.uzh.ch/user/root/hdcptq.html Sismi] [http://www.worthwhilehosting.com/banners/auto/rwwqvc.html Dediche it] [http://www.hiidenkivenpaivakoti.fi/help/new/tfehxh.html Melatonina diet] [http://www.worthwhilehosting.com/banners/auto/goxuew.html Fare soldo internet sicuro] [http://www.hiidenkivenpaivakoti.fi/help/new/whgeke.html Pareti in cartongesso costo] [http://www.startonlineweb.com/help/new/bahndc.html Frasi dolci glitter] [http://www.worthwhilehosting.com/banners/auto/vfjeqv.html Video culi] [http://www.startonlineweb.com/help/new/rlrorp.html Monopattino a motore a scoppio] [http://www.ccrs.uzh.ch/user/root/upggvq.html Conai] [http://www.startonlineweb.com/help/new/rwmnln.html Personaggio disney baby] [http://www.startonlineweb.com/help/new/palqaa.html Donne grosse] [http://www.hiidenkivenpaivakoti.fi/help/new/pkwpbe.html Gommoni usati] [http://www.startonlineweb.com/help/new/alowtp.html Fidanzato margot sikabonyi] [http://www.startonlineweb.com/help/new/wnkwxr.html Pane surgelato] [http://www.hiidenkivenpaivakoti.fi/help/new/paosbs.html Mare residence] [http://www.hiidenkivenpaivakoti.fi/help/new/gjgupv.html Lucy pinder and michelle marsh] [http://www.worthwhilehosting.com/banners/auto/nfdvhf.html Sex spy cam] [http://www.startonlineweb.com/help/new/joohfd.html Disegni da colorare principesse sirene] [http://www.ccrs.uzh.ch/user/root/sirpcx.html Ballbusting] [http://www.worthwhilehosting.com/banners/auto/xjpink.html Cherubino] [http://www.ccrs.uzh.ch/user/root/ixtsdo.html Fiche cinesi] A simple RS232 example project that takes all the power it needs from the serial port. Use it to power your microcontroller and communicate between serial port and microcontroller. Takes advantage of the fact that pc serial ports will accept 0-5V rather than the RS232 standard of around negative 10V to positive 10V. Very convenient - no external power required! Note that you may use either a 5.1V zener or a 5V regulator.
| + | A simple RS232 example project that takes all the power it needs from the serial port. Use it to power your microcontroller and communicate between serial port and microcontroller. Takes advantage of the fact that pc serial ports will accept 0-5V rather than the RS232 standard of around negative 10V to positive 10V. Very convenient - no external power required! Note that you may use either a 5.1V zener or a 5V regulator. |
| | [[Image:PicPcSerialSchematic.gif ]] | | [[Image:PicPcSerialSchematic.gif ]] |
| | | | |
Latest revision as of 05:15, 16 July 2008
A simple RS232 example project that takes all the power it needs from the serial port. Use it to power your microcontroller and communicate between serial port and microcontroller. Takes advantage of the fact that pc serial ports will accept 0-5V rather than the RS232 standard of around negative 10V to positive 10V. Very convenient - no external power required! Note that you may use either a 5.1V zener or a 5V regulator.
In the circuit above, the two 1N4148 diodes prevent any negative voltage getting into the rest of the circuit if either DTR or RTS would happen to go negative. The two transistors function as transistor switches. The transistors also act as inverters. We need to invert things since the pc serial port uses positive voltage to represent binary 0 (RS232 SPACE) and negative voltage (or lucky for us 0 voltage) for binary 1 (RS232 MARK). Of course the voltage regulator regulates the voltage with some decoupling capacitors. A zener diode can also be used to regulate the voltage. In my schematic, you can see that I developed this for my PIC projects, but other microcontrollers will probably have similar serial communications methods and similar supply voltage requirements.
One thing I needed to do to use this with my solderless breadboard was to connect the metal on the bottom of the breadboard to ground. You may need a similar sort of grounded shielding near your circuitry if you use this.
