|
|
(20 intermediate revisions by 14 users not shown) |
Line 1: |
Line 1: |
− | [http://tantorestaurant.bozine.info/ tanto restaurant] [http://jeopards.info/ jeopards.info] [http://bontril.daimiote.info/ bontril] [http://cheapreplicawatch.incloude.info/ cheap replica watch] [http://cheetahgirl.chummies.info/ cheetah girl] [http://pagingdevice.jeopards.info/ paging device] [http://latinchat.nan-duti.info/ latinchat] [http://flashmemory.chummies.info/ flash memory] [http://wallpaper.daimiote.info/ wallpaper] [http://escapecodefor.hulkage.info/ escape code for] [http://attorneydevilhills.minatare.info/ attorney devil hills kill] [http://fayettevillenewspaper.jeopards.info/ fayetteville newspaper] [http://unitedstatespostal.hulkage.info/ united states postal service jobs] [http://showerscubicles.minatare.info/ showers cubicles] [http://jenesia.info/ jenesia.info] [http://organiccarbondioxide.woadwax.info/ organic carbon dioxide] [http://videosdeaccidentes.daimiote.info/ videos de accidentes] [http://tadalafil.daimiote.info/ tadalafil] [http://chatlines.jenesia.info/ chat lines] [http://jeepwranglerreviews.nan-duti.info/ jeep wrangler reviews] [http://bozine.info/index2_250.html homepage] [http://formatforwriting.incloude.info/ format for writing a resume] [http://medicalinsurance.jenesia.info/ medical insurance ca] [http://javascriptprocess.daimiote.info/ javascript process query string] [http://idoidomoviereview.incloude.info/ i do i do movie review] [http://richmanpoorman.chummies.info/ rich man poor man novelist] [http://anniversaryband.minatare.info/ anniversary band discount] [http://astrabusiness.hulkage.info/ astra business services] [http://spongebobfunand.incloude.info/ sponge bob fun and games] [http://kellyssecret.bozine.info/ kelly s secret gallery] [http://vwpassatmanual.nan-duti.info/ vw passat manual] [http://porsche.hulkage.info/ porsche] [http://realsexpic.minatare.info/ real sex pic] [http://tallclothing.hulkage.info/ tall clothing] [http://incloude.info/index1_666.html map] [http://tribaltattoodesigns.hulkage.info/ tribal tattoo designs] [http://wetlandsland.minatare.info/ wetlands land use impacts] [http://incloude.info/ incloude.info] [http://leathersandal.incloude.info/ leather sandal] [http://virginmobileringtones.woadwax.info/ virgin mobile ringtones] [http://relojes.woadwax.info/ relojes] [http://hotmen.hulkage.info/ hot men] [http://myrtlebeach.minatare.info/ myrtle beach] [http://josephjosephyeo.woadwax.info/ joseph joseph yeo yeo] [http://grouphalloween.minatare.info/ group halloween costume] [http://menshealth.chummies.info/ mens health] [http://sanandreasgamefaqs.daimiote.info/ san andreas gamefaqs] [http://planesfrom.jenesia.info/ planes from] [http://sexypromdress.chummies.info/ sexy prom dress] [http://interracial.jenesia.info/ interracial] [http://rubenmadrid.bozine.info/ ruben madrid] [http://manmaturewithboy.bozine.info/ man mature with boy] [http://popmachinelabel.woadwax.info/ pop machine label] [http://hardcore.nan-duti.info/ hard core] [http://realestatemassachusetts.hulkage.info/ real estate massachusetts] [http://markbennett.hulkage.info/ mark bennett attorney] [http://lasvegasconstruction.nan-duti.info/ las vegas construction contractor] [http://aftermarketsaturn.hulkage.info/ aftermarket saturn] [http://freebigtitvideos.nan-duti.info/ free big tit videos] [http://lillynguyen.hulkage.info/ lilly nguyen] [http://chummies.info/ chummies.info] [http://reviewsairless.nan-duti.info/ reviews airless paint sprayer] [http://crazytown.bozine.info/ crazy town] [http://poemsomeonewanting.woadwax.info/ poem someone wanting] [http://hawaiiairlines.chummies.info/ hawaii airlines] [http://louisvuittonhang.bozine.info/ louis vuitton hang bag] [http://1993f150.daimiote.info/ 1993 f 150] [http://pregnantwomanphotos.minatare.info/ pregnant woman photos] [http://voyeurweb.bozine.info/ voyeurweb] [http://emamhossein.hulkage.info/ emam hossein] [http://officespacewebsite.bozine.info/ office space web site] [http://russiansingle.incloude.info/ russian single girl] [http://listofhuman.jeopards.info/ list of human qualities] [http://mineralmakeuprecipes.incloude.info/ mineral makeup recipes] [http://sexyasian.incloude.info/ sexy asian] [http://summercottage.daimiote.info/ summer cottage rentals in maine] [http://hulkage.info/index1_1000.html home] [http://teahouseplan.nan-duti.info/ tea house plan] [http://evictionformsfree.incloude.info/ eviction forms free] [http://jenesia.info/ jenesia.info] [http://mobilegames.nan-duti.info/ mobile games] [http://homeequityloans.hulkage.info/ home equity loans] [http://powerballwinners.daimiote.info/ powerball winners] [http://jeopards.info/index4_250.html index] [http://chatroomssexcleveland.chummies.info/ chat rooms sex cleveland] [http://certina.minatare.info/ certina] [http://multitester.chummies.info/ multi tester] [http://sendfreeringtones.jenesia.info/ send free ringtones] [http://bangles.woadwax.info/ bangles] [http://ebookfreejavaprogramming.jeopards.info/ ebook free java programming] [http://tradestocksclass.incloude.info/ trade stocks class] [http://oklahomahealthscience.woadwax.info/ oklahoma health science] [http://amsterdammetro.jeopards.info/ amsterdam metro maps] [http://storiesaboutmuscular.incloude.info/ stories about muscular girls] [http://showersteam.incloude.info/ shower steam] [http://angelzbratzrock.jeopards.info/ angelz bratz rock] [http://smileycentral.incloude.info/ smiley central] [http://sexyhot.jeopards.info/ sexy hot] [http://chummies.info/index9_666.html homepage] [http://onlinediscountperfumes.incloude.info/ online discount perfumes uk] [http://kom-pas.de/3xcms/config/hkatuploads/images/kaoiaa.html savage empire map] [http://kristinlyseggen.com/gallery/1documentaries/7travel/gqmufp.html kick boxing schools] [http://www.easypayinfo.com/subscribe/tmp/aqabup.html apple quick time for windows] [http://mkatzenbach.de/Website_MK_alt/content/cache/dir/end001/mohouk.html ice bucket silver] [http://activeimage.c3.hu/css/ftdeim.html university of connecticut spring weekend] [http://2001.c3.hu/mas/drfbig.html party games nude] [http://kom-pas.de/3xcms/config/hkatuploads/images/slxusa.html reflected heat] [http://www.olemissfans.com/chatpro/image/aeqgdo.html is it gonna be you and me together] [http://ndr.hu/rhodes/wwctvk.html injury law minneapolis personal] [http://activeimage.c3.hu/css/wjsqfs.html marine aquariam 2] [http://www.lowell.edu/styles/old_style/css/oobven.html free mp3 ringtones] [http://activeimage.c3.hu/css/ltxdbm.html abs pipe prices] [http://aura.c3.hu/thumb/rjttnk.html knee replacement surgery photos] [http://troniny.ovh.org/gallery/layout/mreddr.html what is single phase ac] [http://www.plurpage.com/classifieds/cache/vsuugd.html real estate amsterdam new york] [http://aura.c3.hu/thumb/kradxs.html plumbing denver] [http://ideonomy.mit.edu/wiki/config-OFF/config/gsh/enf001/wicdjn.html victoria house hotel] [http://troniny.ovh.org/gallery/layout/wharch.html old spanish movies] [http://www.salona-yachts.eu/misc/bxjiur.html remote access firewall] [http://kom-pas.de/3xcms/config/hkatuploads/images/gtiijc.html after dark collection review] [http://2001.c3.hu/mas/ifqqbe.html michigan paint horse club] [http://activeimage.c3.hu/css/aljcil.html youth bows] [http://activeimage.c3.hu/css/lrlspe.html mandala design free] [http://informer.siam.edu/themes/hm/ufgwji.html ultram online] [http://aura.c3.hu/thumb/cdjbxr.html pride u2] [http://www.olemissfans.com/chatpro/image/gqipwq.html rec room battles] [http://ideonomy.mit.edu/wiki/config-OFF/config/gsh/enf001/orvxjx.html reception sample wedding program] [http://informer.siam.edu/themes/hm/kgooqd.html buy zocor] [http://ndr.hu/rhodes/bcmhpo.html man older screwing] [http://www.housing.und.edu/reshalls/blog/wp-content/uploads/2007/04/img/evigtl.html buy valium] [http://kristinlyseggen.com/gallery/1documentaries/7travel/gaspir.html red book carpets] [http://www.salona-yachts.eu/misc/vorstp.html martin luther king jr information] [http://www.olemissfans.com/chatpro/image/ssainj.html president bush iraq speeches] [http://activeimage.c3.hu/css/qmmtxa.html kim sung ill] [http://www.housing.und.edu/reshalls/blog/wp-content/uploads/2007/04/img/mauotw.html kyocera ringtone] [http://2001.c3.hu/mas/fbiltm.html option course] [http://2001.c3.hu/mas/vhkxvl.html oscar de la olla] [http://www.stillwaterhomes.com/listings/images/pic/fnsqnw.html milky way] [http://www.easypayinfo.com/subscribe/tmp/pfcftv.html picture of single long stem rose] [http://kom-pas.de/3xcms/config/hkatuploads/images/ugxnki.html aromatic soaps] [http://www.stillwaterhomes.com/listings/images/pic/eucbua.html paid read e mail] [http://maps.my2gig.com/cache/qvpccd.html runway pics] [http://mkatzenbach.de/Website_MK_alt/content/cache/dir/end001/cdxvgd.html music playing sites] [http://ndr.hu/rhodes/xigndv.html online graphing calculator free] [http://troniny.ovh.org/gallery/layout/dhtmtk.html amd stock symbol] [http://maps.my2gig.com/cache/qudufj.html togos great sandwiches] [http://troniny.ovh.org/gallery/layout/hnifbu.html 32 baby premature week] [http://www.olemissfans.com/chatpro/image/hfbihu.html pavement lyrics] [http://mkatzenbach.de/Website_MK_alt/content/cache/dir/end001/odoxoo.html television program 24] [http://troniny.ovh.org/gallery/layout/dcrnrb.html mustang tail light covers] [http://maps.my2gig.com/cache/qhepbq.html la encarnacion] [http://mkatzenbach.de/Website_MK_alt/content/cache/dir/end001/ieqbmg.html wall shelf units] [http://activeimage.c3.hu/css/oukqoi.html macquarie group] [http://www.easypayinfo.com/subscribe/tmp/dhthdq.html residential wind generators] [http://www.easypayinfo.com/subscribe/tmp/ucwmge.html sale nyc] [http://kom-pas.de/3xcms/config/hkatuploads/images/lucevv.html rental cars cheapest] [http://www.salona-yachts.eu/misc/dbvdtf.html anglo american mining company] [http://troniny.ovh.org/gallery/layout/ilesgv.html likes me when im gone] [http://www.systemsupport.und.edu/cache/avatars/emo/dlfkng.html marriage certificate in massachusetts] [http://kom-pas.de/3xcms/config/hkatuploads/images/iwcshf.html loan pharmacy student] [http://ndr.hu/rhodes/igabxj.html new york non resident income tax form] [http://www.olemissfans.com/chatpro/image/dcpjsb.html indian male models] [http://mkatzenbach.de/Website_MK_alt/content/cache/dir/end001/teipii.html mayhem computers] [http://troniny.ovh.org/gallery/layout/xfuasw.html award husband year] [http://ndr.hu/rhodes/cpptnv.html active atlantic storm] [http://kristinlyseggen.com/gallery/1documentaries/7travel/jslkoa.html pokemon world download] [http://maps.my2gig.com/cache/wlphud.html america discount tires] [http://aura.c3.hu/thumb/ctmnja.html university of pennsylvania endowment] [http://kristinlyseggen.com/gallery/1documentaries/7travel/fvakov.html making log furniture] [http://maps.my2gig.com/cache/rbapxc.html philadelphia school taxes] [http://informer.siam.edu/themes/hm/uvqnnk.html zanaflex online] [http://www.easypayinfo.com/subscribe/tmp/frfncf.html super smash bros melee movies] [http://maps.my2gig.com/cache/raapwa.html michigan city map] [http://www.salona-yachts.eu/misc/qpsudd.html kazaa lite mac free] [http://aura.c3.hu/thumb/metbhh.html preferred packaging] [http://www.easypayinfo.com/subscribe/tmp/vftonl.html waterloo mall] [http://atlas2.mirc.gatech.edu/sugar/log4php/helpers/ssh/vuny.htm norco online] [http://ideonomy.mit.edu/wiki/config-OFF/config/gsh/enf001/teixln.html love from australia boots] [http://maps.my2gig.com/cache/avstaf.html alive dead round spin] [http://2001.c3.hu/mas/ecnkwf.html pat steak] [http://aura.c3.hu/thumb/khfxdp.html the song let the good times roll] [http://2001.c3.hu/mas/hcrarh.html metal machining] [http://troniny.ovh.org/gallery/layout/vfmvfb.html when to use to or too] [http://mkatzenbach.de/Website_MK_alt/content/cache/dir/end001/rpsuji.html saturdays child works hard for a living] [http://ndr.hu/rhodes/bpurws.html 3d web sites] [http://activeimage.c3.hu/css/pisein.html journal of research in crime and deliquency] [http://www.easypayinfo.com/subscribe/tmp/ifhuof.html portable cd mp3 player with sd card] [http://www.lowell.edu/styles/old_style/css/wvlnjn.html walking stick dog] [http://informer.siam.edu/themes/hm/hatqbc.html punk ringtone] [http://2001.c3.hu/mas/ogngox.html planes of wwii] [http://www.easypayinfo.com/subscribe/tmp/rctgrb.html longitudinal and transverse waves] [http://informer.siam.edu/themes/hm/wbvkuc.html adipex] [http://www.stillwaterhomes.com/listings/images/pic/nqhveu.html 2 ever quest review] [http://troniny.ovh.org/gallery/layout/tftuff.html jacksonville north carolina shopping mall] [http://www.stillwaterhomes.com/listings/images/pic/bghhcn.html weather of new york] [http://www.olemissfans.com/chatpro/image/leqwnu.html psych abstract] [http://www.easypayinfo.com/subscribe/tmp/wikoan.html st. leos university florida] [http://informer.siam.edu/themes/hm/hsmwnt.html discount adderall] [http://www.plurpage.com/classifieds/cache/jwgneq.html i m your lady and you re my man] [http://www.easypayinfo.com/subscribe/tmp/bjxtsm.html window treatment baltimore] 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 04:15, 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.