Link Insert

hello .. i need me out finish project, it's due tomorrow .. the prof. asked attach photoresistor between analog input 1 , 5 v , attach 10kΩ resistor between analog input 1 , ground. program take reading photoresistor using analogread() , display on 7 segment display once per second.  value should displayed number 0 through 9, 0 corresponding dark , 9 corresponding light.  analogread() function outputs numbers 0 1023, can divide analogread() output 103 numbers between 0 , 9.  how done, although, wired correctly .. would please me project done? thanks ,, post code.  please use [code] [/code] tags. Arduino Forum > Using Arduino > Programming Questions > analogRead() >> help arduino

i think hosed system. remember kids backup. @ work , decided upgrade system @ home. in order allow upgrade run ran code: sh /media/cdrom0/cdromupgrade from within screen session log out , not worry it. logged in few times check status , seemed going other having press enter continue through few ncurses screen few packages. got work , tried log in screen session using code: screen -x and got program 'screen' not installed. can install typing: sudo apt-get install screen screen: command not found bash: screen: command not found tried installing screen of course get e: not lock /var/lib/dpkg/lock - open (11: resource temporarily unavailable) e: unable lock administration directory (/var/lib/dpkg/), process using it? no mystery there. looked screen /usr/bin/screen.real. ran code: /usr/bin/screen.real -x lo , behold able screen session back. continued upgrade without more issues. after rebootin

as subject suggests, im after way wirelessly communicate between arduino , relay boards. im running 4 relays off arduino , working perfectly, except want expand project little step further. i want have arduino board in central location of house (lounge room or bedroom) have relay boards in switch box. i know use wifi or power on ethernet system don't have wifi or phone lines am, there way complete this? any appreciated, thanks! the relay shield needs inputs drive need arduino receive signal main arduino , drive shield. a radio link want. weedpharma Arduino Forum > Using Arduino > Project Guidance > wireless communication between arduino and relay boards arduino

hello, have problem gdm. on ubuntu 9.04 everithing working great, after upgrading 9.10 gdm login screen have size of virtual desktop, , can't see whole login box, have scroll horizontally screen using mouse see whole box. here xorg.conf: code: section "serverlayout" identifier "layout" screen 0 "lcd_screen" 0 0 screen 1 "tv_screen" endsection section "module" load "glx" endsection section "serverflags" option "xinerama" "off" option "clone" "off" endsection section "monitor" identifier "lcd" modelname "gateway hd1900" endsection section "monitor" identifier "tv" vendorname "samsung le32a551" endsection section "device" identifier "0 nvidia geforce 8600 gt"

salut. o problema atunci cand incerc sa instalez o noua componenta. pe serverul de hosting permisiunile directoarelor sunt corecte, safe mode este off si totusi nu pot instala componente noi. mai cineva problema asta? cum se poate rezolva. multumesc in avans, cezar. bun. rezolvat problema intre timp. multumesc pentru ajutor :-p . era o setare din general configuration. era setat sa rescrie automat permisiunile noilor fisiere instalate la 644. acum este bine. Board index Joomla! International Language Support International Zone Romanian Forum

hi guys, i'm looking replacement old pc running linux mint. want future raspberry do: - run kodi - run dlna server (not kodi, used minidlna on mint , enjoyed much) - connected vpn - run torrent client - smb - printserver able raspberry? gain media center functionality, have install openelec or osmc, right? restricted kodi there or able "go outside" , run other software? or have switch raspbian enjoy "computer-like" experience folder sharing, print server, internet browsing , stuff, and, if want run kodi, shut down raspbian, switch cards , run openelec or osmc? as far know pi 2 can of above. question how want perform? perhaps need more 1 pi 2 ! raspberrypi

this site: http://www.codders.com i ad google skyscraper ad right side of template. (underneath wh's online) how go adding either ad space or actual ad there.... hi create new module - modules / site modules, click on new in textarea, add google code you may have disable wysiwyg editor if messes google code. regards brendon Board index Joomla! Older Version Support Joomla! 1.0 General Questions - 1.0.x

ciao tutti, ecco componenti principali del mio quadricottero:  arduino compatibile  imu gy 85  turnigy 6x fhss 2.4ghz transmitter , receiver (mode 2)  4 x hobby king 30a esc 3a ubec  hobbyking esc programming card  4 x ntm prop drive series 28-30 900kv / 300w brushless motor  ho collegato vari componenti secondo le indicazioni delle guide trovate on-line e collegando il drone al pc e verificandone il funzionamento sembra tutto ok, nel senso che nel multiwiiconfig vedo tutte le azioni che compio sul trasmettitore e la calibrazione sembra ok.  ho programmato gli esc con queste due procedure:  1) con la scheda impostando versi e gli altri parametri (collegato motore ed esc, collegato la batteria, collegata la card, atteso il beep [sulle istruzioni dice 1 beep me ne ha fatti 3!])  2) collegando gli esc al canale throttle del ricevitore, impostando la manetta al massimo e poi dopo il ciclo di beep al minimo.  collegando gli esc direttamente al ricevitore funziona tutto, una domand

hi all, i want ask how right connect enable in ics , digital communication between ics. take example this: in first case have mcu connect pin1 , pin2 example, in second enable pin, in third i2c connection. i want ask 3 examples:  - how correctly should choose resistors value?  - it's error connect decoupling cap? (i suppose it's if want have stable en i'll have delay before  en goes down after pin5 pull down)  - difference between i2c connection , simple connection between 2 pins? see first have resistor connected vcc , second gnd, why difference? for individual chips' enable lines read datasheet - that's source of correct information.  if general input hardwired on cmos ic tie gnd or vcc as appropriate directly.  ancient ttl logic chips things different, ancient, you shouldn't seeing them around these days. for i2c bus things pretty standardized, in lack of other information use 4k7 pullups on sda , scl.

i'm building circuit plan reuse various batteries, ranging 3 9 volts. current switched appropriate transistors (e.g. ztx1049a) controlled uc running @ 5v, plan use optocouplers. can optocoupler, perhaps 4n25, used range of voltages? need in datasheet? thanks reading. why optocouplers? just adds unneeded parts & complexity. arduino suited control bjt or mosfet transistors actual current control. Arduino Forum > Using Arduino > General Electronics > Optocouplers with a little range, 3-9V arduino

okay upgraded 9.10which awesome.. using banshee manage music on ipod , g1 no problem before.. when plug ipod in..banshees starts not show in list on left did before.. ideas? me too... disappointing. resolution? Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Banshee problem Ubuntu

working on small controller, , need see if willing make java gui it. have no idea how program java, , no time learn. :-/ pm questions. thanks, seth so why use java? see python gui demo . if want pay write code ask in gigs , collaborations section. ...r Arduino Forum > Community > Gigs and Collaborations > Java help needed arduino

i have assembly 2 assembles. when try convert assembly pdf have primitives without parts in 2 assembles. put parts in 1 folder. when try use "capture 3d model" , hit print screen key nothing happened (i try refresh , rotate assembly). hello, could please describe step step how reproduce problem? did try import proe file directly acrobat 3d instead of "capture" thanks in advance regards william gallego qe team More discussions in Rich Media & 3D adobe

hi, installed ubuntu 9.10. using wubi on hp mini 110. ubuntu not detect wireless card. used detect wirless card in ubuntu 9.04 through use of properitary driver. when go hardware drivers, tells me no properitary drivers in use. here wireless card part of lspci -v code: 01:00.0 network controller: broadcom corporation bcm4312 802.11b/g (rev 01) subsystem: hewlett-packard company device 1507 flags: bus master, fast devsel, latency 0, irq 16 memory @ feafc000 (64-bit, non-prefetchable) [size=16k] capabilities: [40] power management version 3 capabilities: [58] vendor specific information <?> capabilities: [e8] message signalled interrupts: mask- 64bit+ queue=0/0 enable- capabilities: [d0] express endpoint, msi 00 capabilities: [100] advanced error reporting <?> capabilities: [13c] virtual channel <?> capabilities: [160] device serial number ff-ff-00-ff-ff-00-00-00 capabilities: [16c] power budgeting

hello everyone, i trying self-built arduino mega 2560 pcb work , having trouble usb interface. in end, ethernet shield directly on same board i'm trying cloned arduino mega 2560 work (schematic attached). i took original eagle schematic arduino website, routed , had board manufactured. after assembly, atmega2560 microcontroller works expected. can upload programs using arduino isp , correctly executed. however, atmega16u2 should act serial-usb interface not seem work. can address chip avrdude, set fuses , upload firmware without problem not recognized usb device computer. using avrdude, set fuses of atmega16u2 following values: extended: 0xf4 high: 0xd9 low: 0xde then uploaded firmware "arduino-usbserial-atmega16u2-mega2560-rev3.hex" arduino ide's "\firmwares\arduino-usbserial" folder. setting fuses , upload firmware seems work - successful verifications avrdude. have set fuses of atmega2560 (e:0xfd, h:0xd8, l:0xff) , uploaded bootloader "stk5

hello! i'm trying out ubuntu on laptop first time (9.10 32-bit, via wubi) , biggest problem @ present can't mouse settings work right. touchpad works fine , tapping on registers left-click, 2 actual buttons below set right-handed (i.e. left registers left-click, right registers right-click) though went system>preferences>mouse , selected left-handed. there way can switch these buttons opposite configuration? thank you! i still haven't found way fix thoughts? Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] Left-handed mouse on laptop? Ubuntu

bom, apenas para mostrar o resultado meu relógio de cuco, parte electrónica tinha avariado toda e deixou de funcionar, resolvi arranjá-lo mas adicionar algumas coisas, como música em formato mp3   configuração relógio: https://www.youtube.com/watch?v=guio5cvn5kc exemplo funcionar: http://youtu.be/jq3ckt0pnuw toda electrónica de controlo substituída, attiny84 nos comandos. cartão minisd de 1gb com 30 'bocados' de música por agora (suporta muitos mais mp3) e são escolhidos aleatoriamente. nº de horas que vai tocar e hora de início gravadas em eeprom. hora atual definida sempre que o sistema é desligado\ligado. ao acordar toca um dos mp3 com um cuco cantar e passa depois para uma música de 22segundos. se acordar e vir que não é hora de tocar, ou se o botão de música estiver em off, o sistema volta para o modo sleep. pilhas recarregáveis 2000mah ikea alimentar o sistema, uma pilha de 1.5v normal alimentar apenas o relógio de quartz. parabens!  ótimo

hej jag håller på att lägga upp en joomlasajt hos surftown... efter en del inledande problem (globals, safemode mm) som jag hittat lösningar på delvis via tidigare inlägg här har jag nu kört fast! jag har lyckats installera vissa komponenter, som "acajoom" (maillist), men när jag försöker ladda upp joomlaboard får jag följande meddelande: "error while opening {/hsphere/local/home/schang/xxxxx.com/media/install_45db38115e73f/admin.joomlaboard.html.php} in write binary mode" samma problem oavsett vilken av de tre senaste utgåvorna av komponenten jag provar med... jag har även försökt installera manuelllt men går bet även där  - den problematiken hoppas jag dock slippa reda ut genom att få tips om var skon klämmer när det gäller vanlig installation... har förstått att surftown och joomla inte var bästa kombinationen av outgrundliga skäl - men nu sitter jag här... min konfig ser ut som följer (safemode patch installerad): php built on:  linux ws2.surf-town.net 2.6.17

hi friends, i've got simple frustrating question because haven't been able find in-depth answer this. i'm not sure if in right forum, if it's not, mods feel free move it. sorry. i'm studying creative technology (design , technology) , it's first year there. wondering kind of work creative technologist have in portfolio? we're going studying lot of things such openframeworks, cinder , use whole lot of arduino i'm still confused work real world companies, jobs expect see creative technologist? if has portfolio example offer inspiration great! insight appreciated. again, sorry if in wrong forums. thanks, hi shuey, here's creative tech case study exemple in advertising field : the erasable billboard : https://www.youtube.com/watch?v=c-gnp7dcccs as student, showcase school project , research : prototypes, ideas , on ... where studying ? hope helps ! Arduino Forum >

revision: 2827 author: aharui@adobe.com date: 2008-08-12 16:37:08 -0700 (tue, 12 aug 2008) log message: ----------- make changes allow swfs unload.zip fix cursormanager issues when both sandboxes have custom cursor. review: djl modified paths: -------------- flex/sdk/branches/3.0.x/frameworks/projects/airframework/src/mx/managers/windowedsystemma nager.as flex/sdk/branches/3.0.x/frameworks/projects/framework/src/mx/controls/swfloader.as flex/sdk/branches/3.0.x/frameworks/projects/framework/src/mx/core/application.as flex/sdk/branches/3.0.x/frameworks/projects/framework/src/mx/events/sandboxbridgerequest. flex/sdk/branches/3.0.x/frameworks/projects/framework/src/mx/managers/cursormanagerimpl.a s flex/sdk/branches/3.0.x/frameworks/projects/framework/src/mx/managers/focusmanager.as flex/sdk/branches/3.0.x/frameworks/projects/framework/src/mx/managers/systemmanager.as More discussions in Commits adobe

i've been trying past couple of days sign code of conduct in lanuchpad. managed sort through getting gpg key established , recognized (no mean trick me). download text file following link provided @ launchpad. verify file in tact opening in ooo. here's hiccup comes in. when issue gpg -- clearsign command [dialogue follows], consistently error message there no such file or directory. <<dialogue on>> gpg --clearsign ubuntucodeofconduct-1.0.1.txt need passphrase unlock secret key for user: "mark c. miller <mr.mcmiller@gmail.com>" 1024-bit dsa key, id 20674986, created 2009-06-30 gpg: can't open `ubuntucodeofconduct-1.0.1.txt': no such file or directory gpg: ubuntucodeofconduct-1.0.1.txt: clearsign failed: file open error <<dialogue off>> know file there. can see it. can open it. tried changing name (don't know thought do, had try something. didn't make difference.

--sorry accidently posted in translations section. sorry again--- hey everyone, i installed joomla , have ben playing while now. rocks, love alot more drupal. have managed figure out need throught forums. helpfull. stumped , hope can me. trying setup smtp settings not getting it. i tried mail setting on host have site hosted, hostmonster.com i tried on different host @ network solutions , gmail. not successfull in of them. can please me problem. ps. when set setting phpmail works partially. when setup user, user gets confirmation email don't 1 default address saying account has been setup. using live chat compoment suppose send email out if select option , pm compoment , newsletter compoment. none working. pls help. thanks in advance. ok here goes small update. i have found -------------------------------------------------------------------------------------------------- goto global configuration then mail section select smtp server mailfrom : mail want@addondomain.com senmail

i ran across this, , thought i'd pass along. has uno-form factor, otherwise, not arduino-compatible in way can tell. http://www.coridiumcorp.com/prod-specs11.html http://www.coridiumcorp.com/prod-directory.html is programmable in c, , have serial bootloader uploading programs via ftdi cable, although info not easy come by. i intrigued mention of dual-core m4/fpu , floating point hardware accelerator. can put light on last bit? i've been looking use neural net simulation, fp handy. quote can put light on [dual-core m4/fpu , floating point hardware] it uses nxp lpc4330, interesting chip "asymetric" dual cores.  one core cortex m4 arm cpu floating point hardware, , other core "more primitive" cortex m0 (integer only, no divide instruction, etc.)  (both cores standard arm cpus; it's mixing them in fashion unusual.) http://www.nxp.com/products/microcontrollers/cortex_m4/lpc4300/ Arduino Forum

revision: 4331 author: shodgson@adobe.com date: 2008-12-16 14:07:55 -0800 (tue, 16 dec 2008) log message: ----------- merge of mainline fixes lcds 2.6.1 hotfixes branch (sdk 3.x branch). ---------------------------------------------------------------------------- bug: lcds-544 - scenario 2 components have seperate channel sets overlapping channels not working. blz-288 - consumer receiving first pushed message when consumer , remoteobject used push messages use different channel sets same channel. qa: yes doc: no checkintests pass: yes ticket links: ------------ http://bugs.adobe.com/jira/browse/lcds-544 http://bugs.adobe.com/jira/browse/blz-288 modified paths: -------------- flex/sdk/branches/3.x/frameworks/projects/rpc/src/mx/messaging/channelset.as flex/sdk/branches/3.x/frameworks/projects/rpc/src/mx/messaging/consumermessagedispatcher. More discussions in Commits adobe

ciao, sto iniziando primi "esperimenti". ho un dubbio sull'alimentazione del mio arduino uno. invece di collegarlo al pc (via usb) pensavo di usare un power bank (avete presente quelle batterie che ti porti in giro per caricare il cellulare?) quello che ho io esce con 5v e 1a max... che dovrebbero essere gli stessi valori dell'usb (e dell'input di arduino) vi scrivo perche' ho il timore di rovinare qualche componente della scheda. avete mai provato ad alimentarlo cosi? ho trovato vari post su collegamenti con batterie da 9v... ma nulla con questi!! spero che il post sia chiaro!! grazie dell'aiuto! riccardo ti invitiamo presentarti (dicci quali conoscenze hai di elettronica e di programmazione) qui: presentazioni e leggere il regolamento: regolamento - qui una serie di schede xxxpighi per collegamenti elettronici vari: abc - arduino basic connections - qui le pinout delle varie schede xxxpighi: pinout - qui una serie di link g

hi, i have in beggining of code created 2d int array (it should global) code: [select] int vyrovnavacileds[15][5]; anywhere else, write values it code: [select]       vyrovnavacileds[interval][0] == from;       vyrovnavacileds[interval][1] == to;       vyrovnavacileds[interval][2] == r;       vyrovnavacileds[interval][3] == g;       vyrovnavacileds[interval][4] == b; and in part of code, tried read it code: [select] for(int = 0; < interval; i++) {         = vyrovnavacileds[i][0];         = vyrovnavacileds[i][1];         value.r = vyrovnavacileds[i][2];         value.g = vyrovnavacileds[i][3];         value.b = vyrovnavacileds[i][4]; } but when print values code: [select]         serial1.print(from);         serial1.print(";");         serial1.print(to);         serial1.print(";");         serial1.print(value.r);         serial1.print(";");         serial1.print(value.g);         serial1.print(";");         serial1.println(value.b); i

ae, finalcut, photoshop, freehand, technisch versiert in videotechnik, starker hang zum programmieren - wer wagt es? ist scharf auf selbständigkeit/freiberuflich und wohnt in berlin? www.zoom-art.de freut sich!! sie suchen einen motivierten und kreativen mitarbeiter, der sie und ihr team im bereich av-produktion unterstützt. ich denke den von ihnen geforderten anforderungen gerecht zu werden und bewerbe mich deshalb als tatkräftige unterstützung für ihr team. im juni 2000 habe ich mein studium der wirtschaftskommunikation der fachhochschule für technik und wirtschaft in berlin mit dem titel diplom-kommunikationswirt (fh) abgeschlossen. neben der ausbildung in den allgemeinen wirtschaftswissenschaftlichen fächern erfolgte eine spezialisierung in marketing, in den bereichen der kommunikations- wissenschaften und in der gestaltung und produktion von medien. diverse praktika und tätigkeiten während des studiums haben mich dazu bestärkt, mein späteres berufsleben auf den bewegt-bild-be

i'm trying use rocker controller form mobility scooter. problem have has 5 wires instead of 3. if 3 know how read analog values.... i have connected 5v power , ground black , red wires. try analog read of other 3 wires , 0 volts.... does have ideas on how rocker pot might work? thanks help! dan i think you'll find it's not pot @ all, it's series of switches.  you'll have more thorough multimeter find out logic involved. Arduino Forum > Using Arduino > Sensors > Rocker Pot from a Mobility Scooter.... arduino

i've been using new phoenixos flamehawk. there downloads lenovo offers users of os? based on "hardy" version. i have not heard of pc manufacturer supplies desktop linux. lenovo wintel platform. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [kubuntu] Ubuntu-Hardy Ubuntu

i'm making digital display car have ability display acceleration, speed, ideally distance travelled (i.e. successive integration of acceleration), , ideally inclination , compass heading, altitude... sort of thing. i've sort of assumed accelerometer way go, i'm not sure if it's going accurate enough.  there'll local variations in gravity, variations in measurement due changes in inclination difficult account for, variations in gravity due change in height (though this, i'd imagine, insignificant), , countless other things haven't considered yet. i've found this: 9 degrees of freedom sensor this looks ideal, it's bit expensive me, , i'm not sure solve problems anyway. is there better can use?  9 degrees of freedom sensor suitable? quote there'll local variations in gravity no not can measure. none of other concerns relevant also, but:- quote and countless other things haven't considered yet. yes noise on outp

i've been struggling bit, , decided time seek help. i'm making hdd pov (persistence of vision) clock, , have number of scrap hard drives choose from. thought picked 1 spin continuously when powered on, after removing read/write components, found out not case. spins up, slows down, spins up, slows down, stops. total spin time 10-20 seconds. the thing is, had set leds hard drive already, , i'm committed making work. swapped out hdd board another, didn't help. finally, decided try , drive motor code, , hooked phases 5v logic mosfets. followed guys' video: https://www.youtube.com/watch?v=cmz2dypos8w and modified code bit (here's code): http://bartvenneker.nl/schemas/code_arduino_hdd.txt after lot of tweaking, got code spin motor maybe 3-5,000 rpm. problem is, @ these speeds (or lower speeds) continuous spinning dependent upon timings of code. motor must gradually accelerated speed (which have hard-coded ramp in code right now), , @ high speeds delays 1ms o

hallo ich möchte gerne aus anwendungen heraus statt zu drucken eine pdf erstellen und per mail versenden (möglichst ohne zu sehen, dass andere programme aufgerufen werden!). kann ich den "pdf-printer" einstellen, dass dokumente nicht modifiziert werden können? hat schon jemand sowas realisiert? wolfgang pdf-printer ist mir unbekannt. aber wenn du pdfs mit dem distiller erstellst hast du die möglichkeit unter menü: voreinstellungen: sicherheit gleich bei der erstellung dateien zu schützen. dabei sind die sicherheitseinstellungen davon abhängig, ob kompatibel zu acrobat 4.0 oder 5.0 die dateien erstellst. wenn du 5.0-kompatibilität anstrebst, hast du mehr und feinere möglichkeiten die unzulässige verwendung deiner daten zu verhindern, hast aber den nachteil, dass der nutzer die version 5 benötigit. ich habe zum beispiel scripte auf meiner homepage (www.wgadelberger.de) und weil ich verhindern will, dass irgendwer die hochauflösend wiederverwertet, habe ich die geschützt, da

i have raspi want have run python script on boot . did after boot gui using line in /etc/xdg/lxsession/lxde-pi/autostart , see script running ps 'headless' - tty ? , don't see output @ - , doesn't write logfile (which if start hand) if boot cli , run script rc.local @ least see output . doesn't seem able run movie (using omxplayer) need run on boot, , furthermore method 'unstoppable' - ctrl-c doesn't stop script have kill remotely ssh. there 'pipresents' package museaums use kind of thing - know possible. have avenues check? use service. check printenv. raspberrypi

hello, first question. secure boot , bitlocker intel minnowboard max/•qualcomm dragonboard 410c explained here - https://ms-iot.github.io/content/en-us/win10/sb_bl.htm raspi2 not. possible execute function raspi2 ? especially, try secure boot. thanks. s-shige wrote: hello, first question. secure boot , bitlocker intel minnowboard max/•qualcomm dragonboard 410c explained here - https://ms-iot.github.io/content/en-us/win10/sb_bl.htm raspi2 not. possible execute function raspi2 ? especially, try secure boot. thanks. raspberry pi unlike x86 based boards mentioned above not have bios https://en.wikipedia.org/wiki/unified_e ... _interface raspberrypi

hi, so have project demo, getting 4 input pins , printing them on computer 1's or 0's. say, if press button 1, code  0001 goes screen. prints 00010001. at first, may debouncing time not enough, fixed increasing it. real problem sometimes, continuously prints data onto screen if no button pressed. we tried remove power supply buttons-circuit board, continues print random codes onto screen if buttons aren't powered. we have buttons connected vdd , gnd, connect diodes each button prevent code mixup. what may problem, should do? edit ..................... code example; void loop() {             current1 = digitalread(firstpin);         current2 = digitalread(secondpin);         current3 = digitalread(thirdpin);         current4 = digitalread(fourthpin);                 delay(5);                 current1 = digitalread(firstpin);         current2 = digitalread(secondpin);         current3 = digitalread(thirdpin);         current4 = digitalread(fourthpin);              

i fresh arduino , electronics, , need pressure data mpx2102. the typical voltage output 0 - 40mv, , way far analog input 0 - 5v on arduino. since not knowing on electronics, ask: 1) how can measure pressure, , 2) conversion analog read voltage pressure. is must use amplifier of gain 125 let me getting correct data? if yes, may please teach me how make it? because although know there called op amp, dont know how use it  or connect in daily practice. one more thing, there pins of v+ , v- , meanings? thanks lot! datasheet: http://cache.freescale.com/files/sensors/doc/data_sheet/mpx2102.pdf over 10000 hits if google "mpx2102 arduino", , this one looks useful. Arduino Forum > Using Arduino > Sensors > Getting pressure data from MPX 2102A arduino

bonjour, voila pour un aquarium, je souhaite automatiser fonction (allumage, extinction) dans des laps de temps programmé. donc je pense que l'arduino peut me faire ca et je voudrais confirmation sur l'achat. donc les contrainte c'est que j'ai plusieurs tension pour les appareil piloté (220v, 12v et 5v). donc je vais acheter une barre de relais: http://www.ebay.fr/itm/151186014451?sspagename=strk:mewax:it&_trksid=p3984.m1423.l2649 une carte arduino nanov3: http://www.ebay.fr/itm/nano-v3-0-atmega328-5v-16m-micro-controleur-ch340g-board-usb-cable-pour-arduino-/261667909040?pt=fr_yo_maisonjardin_bricolage_electroniquecomposants&hash=item3cec9f6db0 donc si je comprend bien, il me faut un module horloge : http://www.ebay.fr/itm/module-tiny-rtc-ds1307-i2c-horloge-real-time-clock-arduino-diy-/321444446504?pt=fr_yo_maisonjardin_bricolage_electroniquecomposants&hash=item4ad7950128 merci de votre aide pour mon projet. - la barre de relai

buenos días, tengo un problema con mi joystick, y me pasa desde que lo compre: cuando uso el visor serial(no recuerdo el nombre) con el ejemplo de la página de arduino. cuando muevo la palanquita, en reposo se mantiene en algo de 5xx si pongo la izquierda, pone 0 y la derecha como 102x, hasta ahí todo bien. el problema es cuando pongo de arriba abajo, en reposo 5xx hacia abajo algo de 0, pero hacia arriba: va aumentando 600,700 y se pone cero cuando llego al extremo(a cualquier extremo vertical me da lo mismo) mi pregunta es: es esto así? o mi joystick esta malogrado? intente cambiar el pin análogo pero igual, así que no creo que sea mi placa. porque no compras otro y te sacas la duda x comparación? Arduino Forum > International > Español > Hardware (Moderators: surbyte, Hector_A) > Joystick

so have project on our avionics class , after searching found guide effective marker beacons: http://www.instructables.com/id/arduino-distance-detector-with-a-buzzer-and-leds/?allsteps and have questions function marker beacon this: http://en.wikipedia.org/wiki/marker_beacon my question how can make leds blink , make piezo buzzer beep. this code used guide: #define trigpin 7 #define echopin 6 #define led 13 #define led2 12 #define led3 11 #define led4 10 #define led5 9 #define led6 8 #define buzzer 3 int sound = 250; void setup() {   serial.begin (9600);   pinmode(trigpin, output);   pinmode(echopin, input);   pinmode(led, output);   pinmode(led2, output);   pinmode(led3, output);   pinmode(led4, output);   pinmode(led5, output);   pinmode(led6, output);   pinmode(buzzer, output);   } void loop() {   long duration, distance;   digitalwrite(trigpin, low);   delaymicroseconds(2);   digitalwrite(trigpin, high);   delaymicroseconds(10);   digitalwrite(trigpin, low);   duration =

un cordiale saluto tutti ed un sincero ringraziamento anticipato quanti decederanno di dedicare qualche minuto del proprio tempo al problema che espongo. premetto che è la prima volta che rivolgo la mia attenzione al sistema arduino e non sono espertissimo nè di elettronica nè di protocolli di comunicazione, tuttavia ho alcune conoscenze di base che mi sono tornate utili in questo periodo di approfondimento. il mio intento è quello di realizzare una bicicletta elettrica sfruttando come interfaccia grafica un iphone. per far questo vorrei utilizzare un dispositivo come il plx kiwi 2 wifi oppure l'obd-ii adapter arduino che comunicherà con un'apposita app installata sull'iphone e realizzata direttamente dal produttore dell'hardware appena citato. alla scheda arduino faranno capo tutti sensori, compreso il drive del motore. al microcontrollore arduino sarà aggiunta la can-bus shield prodotta dalla seeedstudio (http://www.seeedstudio.com/wiki/can-bus_shield) in mo

i getting ready fresh install of 9.1 , looking little advice. system has 2 hds, 1 os , other use backing files , storing downloaded images , music. day day use seldom mount drive. since 8.1 have been reading having separate home partition, , curious if advantage, or more work necessary. not want use second hard drive other backup storage device. of links have found discuss creating separate home directory after ubuntu installed. given regulary important files storage drive still suggest creating separate home directory partition on os drive , if so, have link guide on how @ time of installation? i've created seperate /home partition before (still installed on hard drive), , no real difference. i'd install on 1 partition, way don't have worry having resize partitions if 1 of partitions runs out of space. think /home more useful if plan on upgrading ubuntu , / directory wiped, keep /home i

so posted topic few days ago , couple people helped me on how input multiple digit variables keypad. followed advice , can see 0's now. come in groups of 3 , spam lcd screen. would've posted in other topic didn't want confusion title. being said, hope else has experienced , solved or sees error in code. i have code below , attach photo of problem. code: [select] /* code allows top input values via 3x4 keypad display on lcd screen in number format , alter rgb led color. can switch which color edit * button. use # update colours pins: arduino lcd interface 5v vcc gnd gnd a5 scl a4 sda arduino keypad 8 1 7 2 6 3 5 4 4 5 3 6 2 7 arduino rgb ~220ohm resistors between digital pins , color pins 9 red 10 blue 11 green gnd gnd */ #include <wire.h> #include <liquidcrystal_i2c.h> liquidcrystal_i2c lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, positive); #include <keypad.h> int yr = 0; int yg = 0; int yb = 0; int digitra = 0; int digitrb = 0; int digitrc = 0; int reddig

for mixed linux / windows users default behavior of ctrl-alt-del 'three finger salute' may annoying - if working purely in command line. in wheezy change can edit /etc/inittab file , reload: code: select all sudo nano /etc/inittab *** find line 'ctrlaltdel' (ctrl-w search) *** comment out adding hash '#' @ beginning of line *** save file (ctrl-o) , exit (ctrl-x) sudo init q in jessie there no inittab anymore - behavior controlled file /lib/systemd/system/ctrl-alt-del.target . change need remove current link, point link /dev/null , reload: code: select all sudo rm /lib/systemd/system/ctrl-alt-del.target sudo ln -s /dev/null /lib/systemd/system/ctrl-alt-del.target sudo systemctl daemon-reload bit more in blog (no ads) http://raspberrycompote.blogspot.com/20 ... ebian.html nice, i've added cheat sheet , linked you. http://librpip.frasersdev.net/linux/raspbian/ raspberrypi

greetings, all, (i had problem months ago too, went awayapple update?) recently did stupid on mac (still new mac windows) , had reinstall os x (install , archive). after installing os x 10.5.3, updated 10.5.6. reinstalled cs4 master collection , installed updates that. couple weeks ago. i seldom need print anything, when do, print them pdf. now, when command-p in application (safari, textedit, mail.app, etc), nothing happens. acrobat creates no file. using adobe pdf 9.0 driver. there work around: in lower-left hand corner of print dialog box, can click on pdf > save pdf. prompted name file twice , print. however, trying research issue, else mentioned same thing , told that's apple's pdf printer. want print using acrobat 9. can tell me i'm doing wrong? thank help! keith try resetting printer subsystem. using work around mention uses apple's native os x pdf creation facility. mike More discussions in Acrobat Macintosh (read-only) adobe

has used gpio on atmega48? i've read done on atmel's document 48/88/168, whenever try verify script tells me "a0 not declared in scope." however, can program atmega 328p same code, different board file, no issue. this leads me believe have issue board file, below: code: [select] ############################################################## atmega48.name=arduino atmega48a atmega.upload.protocol=stk500 atmega48.upload.maximum_size=4096 atmega48.upload.speed=19200 atmega48.bootloader.low_fuses=0xff atmega48.bootloader.high_fuses=0xdd atmega48.bootloader.extended_fuses=0x00 atmega48.bootloader.path=atmega atmega48.bootloader.file=atmegaboot_168_diecimila.hex atmega48.bootloader.unlock_bits=0x3f atmega48.bootloader.lock_bits=0x0f atmega48.build.mcu=atmega48a atmega48.build.f_cpu=16000000l atmega48.build.core=arduino i've tried numerous variants of file, i've reinstalled arduino, , tried different pin mapping no success. time! the atm

in below code run code in loop every time interrupt triggered.. how can done..?? code: [select] const int ignitionpin = 2; const int ignitioninterrupt = 0; unsigned long interval; unsigned long lastpulsetime = 0; void setup() {   pinmode(2,input);   pinmode(5,output);   pinmode(6,output);   pinmode(ignitionpin, input);   attachinterrupt(ignitioninterrupt, &ignitionisr, falling);   } void ignitionisr() {   unsigned long present = micros();   interval = present - lastpulsetime;   lastpulsetime = present;   } void loop(){       for(int i=1; i<= 12; i++){     digitalwrite(5, high);digitalwrite(6, high);     delaymicroseconds(50);     digitalwrite(5, low);digitalwrite(6, low);     delaymicroseconds((interval-3000)/60);       for(int j=1 ;j<=4;j++)         {digitalwrite(5, high);         delaymicroseconds(50);         digitalwrite(5, low);         delaymicroseconds((interval-3000)/60);           }   } } first, take code out of loop() function, being c

well tried upgrade system 9.04 9.10 installed fine when restarted complete disaster. 1st grub give error no disc if wait continues boot. 2nd not work encrypted disc has passphrase, no matter typed in not unlock drives boot. 3rd not create mapper partitions encrypted these nice errors not load partitions in /etc/fstab 4th if have login rest assure display hosed , mine was. fixed gconf error after login boots login screen. 5th using nano hoses system period have reboot in order control. 6th same damn thing happen me on fresh install appears upgrade correct version excuse french sucks @$$ go on **** im tired. understand initial launches, betas, rc's when release product god sakes let install or not ready called stable. didn't sign beta testing. studying hosed tonight should not take 2 days install o/s 1 this. this ubuntu's (vista) big fan of distro please 9.10 hell on earth. on 5 dell laptops on none