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Showing posts from June, 2011

Editting the main page - Joomla! Forum - community, help and support

alright i'm new joomla, have background in web development , other programming. have couple of questions. page w3pl.freehostia.com , fiddled around settings delete content stuff, right have regular website. how move around content on page? if want top menu below banner, how do that? how can change name of link etc. want know where/how can edit page. thank you. hi there, fore moving areas (modules) within site have read documentation on modules , templates Board index Joomla! Older Version Support Joomla! 1.0 General Questions - 1.0.x

Hvor finder jeg klassen "inputbox"/"nowrap" i css? - Joomla! Forum - community, help and support

hej arbejder på en side, hvor noget af indholdet rykker sig forkert forhold til resten af indholdet. kildekoden ser det ud som om det er inputbox eller nowrap der afgør hvor indholdet på den pågældende side vises. derfor vil jeg ændre det, men kan ikke finde det under templatens css. så det må være opført andetsteds.. nogen der har bud hvordan jeg finder det, eller får rettet det så det ser ordentligt ud? sitet er her: http://marketinguddannelse.dk/content/category/1/1/2/ mvh regin "inputbox" er nok kun kaldt html'en, og ikke defineret css'en (endnu) - nowrap se quote fra: http://www.devx.com/projectcool/article/19813 p {white-space: no-wrap} the paragraph break specific tag. håber det gav lidt /kasper Board index Joomla! International Language Support International Zone Danish Forum Ældre versioner (disse vedligeholdes ikke længere fra officiel side) Joomla 1.0 (Udg

Camera V2 NoIR Shutter Speed - Raspberry Pi Forums

i'm trying build astronomical sky camera need long exposure times shutter speed parameter not working expected. can't see in between 1sec , 6sec exposures. example: raspistill -ss 6000000 -awb off -awbg 1,1 -iso 800 -t 60000 -o file.jpg expect give me 6s exposure exposes 1sec. i've tried 5000000, 4000000, 3000000 , provide 1 sec exposure too. raspistill -ss 6000001 -awb off -awbg 1,1 -iso 800 -t 60000 -o file.jpg adding 1 microsecond exposure, 6 second exposures. can't in between. strangely enough if use arducam 5mp: ov5642 camera, exposures seem work correctly. there wrong rpi noir camera? appreciated. perlova i can 12 seconds on v2 camera, driving python rather command line, raspistill give long gap between photos if 1 @ time. posted nasic python code here raspberrypi

Newbie question about sharing code between frontend and backend - Joomla! Forum - community, help and support

dear friends: i'm learning develop component joomla. had little success developing component backend. it's simple: uploads file , jobs file. now want put component in frontend, make available registered users. question source code. necesary duplicate code in foldes /administrator/components , /components. because  task same, suppose there must way call frontend backend scripts , reuse code. i searched through tutorials, forum, etc, , finded nothing. thanks help. r. campos. Board index Joomla! Older Version Support Joomla! 1.0 Extensions - 1.0.x Components

módulos para conteúdos especificos - Joomla! Forum - community, help and support

caros amigos, tenho mum site onde tem um frontend com diversas divisões, cada divisão template é uma seção que tem que ter seu texto introdutório exibido, como posso fazer issso? pensei em usar um módulo que ficasse posicionado em cada divisão exibisse cada conteúdo especifico, mas qual módulo poderia usar? obrigado. oi claudio, quando você diz texto introdutório está se referindo à introdução dos conteúdos, certo? só para confirmar, pq se fosse para exibir descrição da seção eu não saberia responder... então, eu uso o mod_newsflash... mas nele só dá pra definir categorias por seção... então funcionaria se você tivésse só uma categoria, mas em outros casos... complicou,rs. achei um módulo no site gavick... ele me parece muito bom, exibe os 3 últimos artigos, sendo um com imagem redimensionada + intro, e os outros 2 como links (como no mod_latestnews). gavick news show http://www.gavick.com/component/option,com_docman/task,cat_view/gid,907/itemid,51/ Board index

void loop() is not looping

hello, i trying program automatic water level controller. have used 2 arduino modules. 1 sensor side , control side. program control side: code: [select] #include <liquidcrystal.h> #define echo 0 #define motor 8 #define buzzer 12 liquidcrystal lcd(2,3,4,5,6,7); float distance=0; int temp=0; void setup() { lcd.begin(16,2); pinmode(echo,input); pinmode(motor, output); pinmode(buzzer, output); lcd.print("  water level "); lcd.setcursor(0,1); lcd.print("   indicator  "); serial.begin(9600); delay(2000); } void loop() {  while(serial.available()>0){  distance=serial.parsefloat()-'0';}  lcd.clear();  lcd.print("water space in  ");  lcd.setcursor(0,1);  lcd.print("tank is: ");  lcd.print(distance);  lcd.print("cm");  delay(1000); if(distance<12 && temp==0) {     digitalwrite(motor, low);     digitalwrite(buzzer, high);     lcd.clear();     lcd.print("water tank full ");     lcd.setcursor(0,1);  

Arduino ide not loading

i updated old copy of arduino ide latest version, , when tried launch, far splash screen , exit. after lot of swearing, ran arduino_debug command command prompt , pointed me in right direction. i found preferences.txt file in users\appdata\local\arduino15 folder had installed read only. unchecked read status , it's sorted, ok now. just thought pass on experience in case of others. never had issue before, bit of surprise. Arduino Forum > General Category > General Discussion (Moderators: mbanzi, DojoDave, mellis) > Arduino ide not loading arduino

RPi bricked after updating firmware (B+) - Raspberry Pi Forums

hello, trying picamera work , reading thread ( viewtopic.php?p=638340#p638340 ) , ran command shown install (notro's custom kernel). realize out of date, has bricked rpi (after noobs screen) goes black , nothing. both red , green leds solid. there way revert or need reinstall os? appreciated. you have not bricked pi. second sd card , install raspbian on it, boot card , configuration want. usb sd card adapter , connect old sd card pi , copy data wanted keep new card. once have way want it...back other device or system. on regular basis can restore card backup. raspberrypi

How do I move the category name above the title? - Joomla! Forum - community, help and support

hi folks, i've configured parametres frontpage display category name of each article. however, category name programmed displayed below title, , display category above title (i know small thing, think it's obvious place display category name. might post in on wish list later.) so, how move category name above title? i have basic programming knowledge, i've tried decipher file "content.html.php" , think have located both title , category name written. seems code written seperately both, , haven't been able find code snippets "fuzed together". seem easy thing just move around order in code written (?). possible? haven't tried css possibilities, though. there kind of css work around ? any appriciated. thanks anders aarhus, denmark Board index Joomla! Older Version Support Joomla! 1.0 General Questions - 1.0.x

Thread: Can't boot Ubuntu after upgrade to 9.10

hi, i've searched threads no luck. i'm newbe ubuntu. here's problem: upgraded 9.04 9.10. during restart grub load stage1.5 menu (dual-boot vista). no matter version of ubuntu select ("recovery mode" or "generic") same results. tried live version of 9.10 cd won't recognize linux partition in "places" (tried sudo mount /dev/sdb1 /mnt keeps asking file system). after grub menu selection, ubuntu logo moving bar comes on screen. next, graphics disappear , folowing text on black screen: init: ureadahead main process (2833) terminated status 5 mountall:/proc: unable mount: device or resource busy mountall:/proc/self/mountinfo: no such file or directory mountall: root filesystem isn't mounted init: mountall main process (2834) terminated status 1 general error mounting filesystems. maintenance shall started. control-d terminate shell , re-try. give root password maintenance (or type control-d continue): u

Sound recording on the raspberry pi Zero W - Raspberry Pi Forums

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hello world, started on research project in need make field recorder wifi , other sensors. field recorder have design criteria meet: - needs small. want build few , give them away people use several weeks. make sure not hassle them relatively small. thinking on using pi 0 w - want capture surrounding sounds (making dynamic microphones less suitable) - needs stereo - needs create @ least cd quality audio far have come understanding there 3 ways can achieve audio in on pi: - use usb sound card or pihat (not preferable due size. furthermore, haven’t found matches pi 0 w) - go digital tour , use mems microphones interface i2s. adafruit sells ( https://www.adafruit.com/product/3421 ) however, upon looking movie ladyada seems need shout @ close range of audio signal in; in conflict desire let people record conversations , environmental sounds - go adc tour, opens hunt adc. latest find is: https://thepihut.com/collections/raspbe ... adc-pizero . relatively new raspberry pi ,

Thread: GNOME and Startup Applications

is there bug startup applications allows things autostart? not know of? i've been able autostart want, including custom-made scripts. don't know bug. either way, if true, i'm not sure if right forum discussion. experiencing particular application? Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help GNOME and Startup Applications Ubuntu

Ps CS4 Extended trial almost over... even I have full license of Adobe Design Premium CS4

hi photoshop friends, i don't know if me... or not... i not sure heck going on. received email adobe in google mail today said photoshop cs4 extended trial over. there must mistake in situation, because have full license of adobe design premium cs4 on mac platforms, including mbp 17" , mac pro operating latest mac system architecture (version 10.5.6). what going on? suggest? should ignore email in error, or should contact adobe customer service regarding email in error , in question. thanks in advance, brian >should ignore email yes. More discussions in Photoshop Macintosh (read only) adobe

Submenus not appearing, despite "link to menu" activated - Joomla! Forum - community, help and support

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first of all, let me congratulate joomla team on outstanding program.  here's story. i'm creating content under topmenu category named information. now, when first click on information, brought overview page. page activates additional menu on left (also called information), appears above main menu. additional information menu shows content links posted underneath it. when clicking on content items listed below information menu, items retain additional menu, , not. i went through of content listed under menu , insured had "link menu" item activated, , linked "information" in fact, settings (except content itself) identical each of these content items. difference ascertain ones *showed* menu created administrator, whereas, ones *didn't* show menu created user administrative privileges. what missing?  thanks in advance.  its might case of 1 space used/reserved many modules. one of way find out disable module , enable 1 one see if published. this common jo

All shortcuts going to netflix??? - Raspberry Pi Forums

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g'day all. having problems after installing chromium browser netflix. ever since of desktop shortcuts open netflix. idea on how fix issue??? fixed it. took me while, after going nuts trying figure out thought have in code netflix shortcut , found solution. if else runs against same problem had is: code: select all type=application exec=/usr/bin/chromium-browser https://www.whatever.com raspberrypi

MEGA2560 SLOW SERIAL SPEED

hello, i'm working on arduino mega2560 board , using 2 serial ports using 2 serial connection delaying response time of detecting change of data. in project i'm using modbus ttl 1 serial port , other port used gsm modem. if use 1 port in programming data response rate fast. what problem same issue happened me earlier arduino uno in using 1 serial , other spi. i've attached program also, please give advie or solution fix it. thanks it looks have 0.5 second delay every time write sms message.  do need those? i going post code, comments, long.  Arduino Forum > Using Arduino > Programming Questions > MEGA2560 SLOW SERIAL SPEED arduino

Synchronizing Serial Port

hello, i'm having difficulty synchronizing serial port on arduino 0 computer.  in application (a data logger). i'm looking connect running arduino 0 computer , start downloading data computer through native port.  i'd able without resetting tag. i can data download if reset serial port reprogramming tag seems pretty inefficient method. i'm wondering if knows if there generic commands used computer, or arduino can synchronize communication , port working (i think there must be, because arduino environment can establish connection program through). also, think in ideal world i'd able setup device usb storage device client, (i've see posts setting 0 keyboard or mouse).  aware of setting things storage device data can downloaded efficiently? Arduino Forum > Products > Arduino Zero (Moderator: cmaglie) > Synchronizing Serial

Change of encoding while writing to file - Raspberry Pi Forums

dear all! reading data sense hat accelerometer , writing file. can explain why, @ point encoding of written file changes? first 10 lines of output file ok: 2017-08-09 15:41:35.299113,0.0592413879931,0.00484891841188,1.13197183609 2017-08-09 15:41:35.322011,0.058755800128,-0.0619557499886,0.975518465042 2017-08-09 15:41:35.344613,0.0611837282777,-0.0130822891369,0.977468073368 2017-08-09 15:41:35.367283,0.0592413879931,-0.0113544398919,0.972837805748 2017-08-09 15:41:35.389731,0.0609409362078,-0.0118481107056,0.972350418568 2017-08-09 15:41:35.412242,0.0604553483427,-0.0128354532644,0.973325252533 2017-08-09 15:41:35.435372,0.0606981404126,-0.0140696316957,0.971375644207 2017-08-09 15:41:35.458535,0.0609409362078,-0.0123417824507,0.970400869846 2017-08-09 15:41:35.481643,0.0606981404126,-0.0120949465781,0.970157146454 2017-08-09 15:41:35.504780,0.0597269758582,-0.0140696316957,0.971619307995 after few hours this: /�*}��������l�����!�� ��4u��ҁ���ńq�ý�����Ӏy}Ł{������yx

Thread: Ubuntu 9.10 Crash at login, help im in trouble!

it's 3 , after fresh install of koala , hour , half setup , costumization black screen no error, acces terminal, no nothing had reboot laptop, , horror... ubuntu wont start pass grub , see ubuntu loading bar hear sounds , freezes , black screen again have reboot. i'm new linux don't know on recovery mode... pls cause need computer in morning , use ubuntu primary os. need know? anyone!!??. ok weird tried again , no apparent reason ubuntu boot aftter lie 10th attempt , got feeling go out second. there way run system check or , see what's wrong? Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Ubuntu 9.10 Crash at login, help im in trouble! Ubuntu

Raspberry pi 1 e hdd esterno autoalimentato: come farli funzionare entrambi? - Raspberry Pi Forums

ciao sto utilizzando un un raspberry pi 1 con un disco sata 2,5'' da 1tb il problema è che per farlo funzionare ho dovuto comprare da amazon un kit per alimentare esernamente un disco sata tramite alimentatore dedicato. facendo così ho dovuto togliere il disco dal suo case e lasciarlo con l'elettronica esposta in bellavista avevo provato collegare case usb nel quale avevo messo il disco direttamente al raspberry il disco viene visto e montato correttamente ma quando vengono fatte operazioni impegnative su di esso (copia/esecuzione di file video via rete tramite samba) il raspberry mi da un errore di input/output ed il disco non è più visibile fino al successivo reboot. mi sono detto che è un problema di alimentazione non sufficiente e per questo avevo acquistato un cavo usb y da collegare da un lato al raspberry, dall'altro al disco ed un alimentatore con uscita usb. bene, il raspberry usa l'alimentazione sia dalla sua microusb che dall'usb y provenient

Thread: 8.04 - ldm_validate_partition_table - disk read failed . Booting LiveCD and installed

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hi! i've got problem ubuntu 8.04 (8.10 , newer works). when booting livecd can see error "ldm_validate_partition_table" , "i/o error on sda sector 0..." disk works, see partitions. 8.10, 9.04, 9.10 works. what's wrong? disk connected via 40-wired ide cable. chipset via kt400, disk seagate 160gb. *bump* Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Installation & Upgrades [ubuntu] 8.04 - ldm_validate_partition_table - disk read failed . Booting LiveCD and installed Ubuntu

Thread: Problem with conky.

hello. have been happily using conky while no problems. today made changes conkyrc file , when restarted conky throws error @ me. code: conky: oops...looks overflowed in addfont() i thought ok , undid changes had made, restart conky same error. surprize searching error in google returns 3 results, none of me. know of error , how fix it? thanks. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Problem with conky. Ubuntu

My circuit not Working.

hi, im doing c code project , after done verify done, try upload arduino uno board. didn't work, circuit have 3 input , 3 output. 3 push button , 3 led,buzzer , servo motor. try fix problem didn't manage find it. attached code below. please me. hi, im doing c code project , after done verify done, try upload arduino uno board. didn't work, circuit have 3 input , 3 output. 3 push button , 3 led,buzzer , servo motor. try fix problem didn't manage find it. attached code below. please me. Arduino Forum > Using Arduino > Project Guidance > My circuit not Working. arduino

First Module Project Idea - Joomla! Forum - community, help and support

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with bridge phpbb3 , j1.5 in works, recent posts , or phpbb3 related modules code beginers group? interesting proposal. i went see there might available, already, , appears starting build third party modules, well. see three listed phpbb3. there huge number amassed phpbb2. our communities are, indeed, similar. since phpbb requires mods gpl-compliant, should able @ , reuse (with proper credit) of work implement idea. doing might us on rhuk's short list of phpbb testers, well. idea, tjay! ...  amy Board index Joomla! Official Sites & Infrastructure Sites & Infrastructure - Feedback/Information Archived Boards - All boards closed Joomla! Coding 101 Joombie Think Tank

Backend com_media problems - Joomla! Forum - community, help and support

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hello in backend can not upload files anymore. did work versions ago. i redirect page: "http://127.0.0.1/administrator/index.php?option=com_media&task=upload&tmpl=component&233e9ed68cacc4418159f207508f946c=7068b36627d58ac1a85d91a707ddc627&format=json" which pretty white... regards  com_media has number of know issues, working on resolving them, of them have been reported on forums or tracker, please preform search first before posting more issues. Board index Joomla! Official Sites & Infrastructure Sites & Infrastructure - Feedback/Information Archived Boards - All boards closed Quality and Testing - Locked and Archived Q&T 1.5.x Resolved

Videos On An 0.96" OLED Screen

i wandering if cheap oled screen , play videos on over sd card. if  how achieve this?   update if have found or if have more questions -thanks anything possible, in case it's out of reach. the screen's resolution 128x64 pixels. you wouldn't playing 'videos' in common usage sense, you'd playing animations. take whatever video have in mind. shrink 128x64 in video editor. see if it's watchable @ point. if somehow is, monochrome has 2-color palette. black , white. then, if whatever reason looks you, convert video still frames on bitmap. give basis pixels on each frame. then it's matter of figuring out how write each frame oled. so, in short, not impossible impossible. also, how 8x8x8 led cube going? , how arduino video game system going? Arduino Forum > Using Arduino > Displays > Videos On An 0.96

Arduino Mega 2560 reading the same value in all analog inputs

i have arduino mega 2560, analog inputs (a0 a15) started reading same value time without connected. values of adc output in analog input around 350~400 (decimal) if connect signal (for exemple, in normal conditions input around 1v, give around  200 (dec) in adc output, right?) but  sums 300 error value in output 200, resulting 500 the point is: it's reading same value  , sum value signal inputed example code used:  int sensorpin = a1; // or a0, a2, a3...  of them int sensorvalue=0; void setup() {   serial.begin(9600);   } void loop() {   sensorvalue = analogread (sensorpin);   serial.print ("sensor = ");   serial.println (sensorvalue,dec);   delay(300); } quote from: mutuca_42 on jul 31, 2016, 04:39 pm its analog inputs (a0 a15) started reading same value time without connected.  there 1 sample/hold capacitor in input of a/d converter.  if there nothing connected analog input pin there nothing sink or source current , capacitor retain last v

A mobile compiler for Arduino?

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i trying while, find solution upload sketch view bluetooth chip. to so, need find way create right hex file upload . i not find complier arduino , can run on mobile instance , although guy did : http://www.arduinocode.info i wonder if compiles online or inside iphone. say don't want check errors , there simple way create hex data few line of code (say blink led) , sent chip via serial ? (ble instance  ) is there anyway send small blink program chip mobile device  ? quote from: gil22 on jul 31, 2016, 09:58 am say don't want check errors , if have typed source code on phone want check errors and, sorry, mobile laptop. ...r Arduino Forum > Using Arduino > Programming Questions > A mobile compiler for Arduino? arduino

Installing GhostPDL on Raspberry Pi - Raspberry Pi Forums

we have been trying install , use ghostpdl program https://artifex.com/ - unfortunately, have not been able print pcl data files downloaded internet without ghostpdl reporting error. installation instructions straightforward (we welcome comments on how improve this): code: select all ensure cups libraries installed apt-get install libcups2-dev libcupsimage2-dev download ghostpcl: cd /tmp wget https://github.com/artifexsoftware/ghostpdl-downloads/releases/download/gs921/ghostpdl-9.21.tar.gz tar zxvf ghostpdl-9.21.tar.gz cd ghostpdl-9.21 ./autogen.sh ./configure make make install seems work ok - have problems when trying print 1 of test files http://www.pcltools.com/propthlp.php code: select all gs -sdevice=printer -dnopause w495.pcl -c quit; error "\ undefined" has managed ghostpdl running on rpi? rwap wrote: ↑ sat sep 16, 2017 9:20 am have been trying install , use ghostpdl program https://artifex.com/ - unfortunately, have not been able print pcl data f

Using --password with ssh - Raspberry Pi Forums

i used --password option ssh avoid password prompt. have tried read on how option working documentation not include --password option. (-p option specifying port). why working not listed in documentation? --password option or doing strange coincidental hack? avoiding password because smooth ssh , scp stash in pythonista. use pythonista , share files between ipads via headless pi. --password seems mysql works bash. know why might be? raspberrypi

Thread: Terminal is all white (9.10)

why terminal white? , whats command reformat hdd? in terminal, type reset , press enter. should put back. either or theme of it's been changed, go edit -> profile preferences -> colours. reformat hdd? in wipe it? well, easiest way boot live cd, , format partition whole gdisk partitioner. fun way "rm -rf /", although severely advise against using that! it's not actual format, deletes in filesystem Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Terminal is all white (9.10) Ubuntu

Problem with LCD 20X4

hi i have problem lcd 20x4 external ic2 connected lcd 20x4 in protoboard firts try using 16x2 lcd (with external ic2) print messages using const char *string_table[] {} the problem messages not display, first letter display, in case can solve problem new liquid crystal library. but need diferent display of messages using 20x4 new liquid crystal , library (incluying default library in ide of arduino) can't work , display nothing. any help?   there few precise information "on point": 1. sure connected right? 2. have delete other lcd libraries first , install newliquid crystal lib make sure library used (in doubt: switch on verbose output , see compiler messages, e.g. lib loaded) 3. did check i2c (not ic2!) address address scanner? 4. let's have @ code (pls in code tags </>) see if used "right constructor right" 5. if possible, let know brand/manufacturer of lcd screen , i2c module you can lot of information here , if displa

Gerneral question about make files

hi, would know -i , -d mean in c make file. i'm trying port arduino project native c on mcu , in make file see line. cflag -d mean? i have seen -i , -g on web without explanation. code: [select] cflags += -dstdout_uart_0 thanks -d defines value can tested using #ifdef. -i defines path include files Arduino Forum > Using Arduino > Programming Questions > Gerneral question about make files arduino

Subir un archivo compilado .HEX al arduino (sin compilar)

abro este hilo nuevo debido que está cerrado el hilo donde debería poner este mensaje. me refiero este hilo: subir un archivo compilado .hex al arduino sin el ide (solucionado) solamente quería agregar que al final usé el programa avrdude.exe sin programas intermediarios, por medio del siguiente comando de cdm en windows: code: [select] c:\arpr\arduino-1.6.9\hardware\tools\avr\bin\avrdude -cc:\arpr\arduino-1.6.9\hardware\tools\avr\etc\avrdude.conf -v -patmega328p -carduino -pcom9 -b115200 -d -uflash:w:p:\bronto\monitors\monitors.ino.standard.hex:i solamente las direcciones de las carpetas y el puerto com pueden variar de una computadora otra. efectivamente, haciendo un copiado de la salida del propio ide tenemos la mayor parte del trabajo hecha. quedaría corregir rutas si quieres hacer algo portable. Arduino Forum > International > Español

350W DC motor driver

hi i have project requires cart moving load of 100kg on straight rail spanning 30 meters, moving specific point specific point on rail. speed important, cart have move fast, , braking required. i'm not electrical engineer, have basics. i picked 24v motor electric scooter motor, rated @ 350w, , paired with 43a bts7960 motor driver module. assuming 43a sufficient, , braking function available, , on voltage , on current protections available too. so happened able turn motor in both direction, run on full speed, no problem.. until tested on brake function. braking worked fine.. well, @ least 20 times, until motor driver stops functioning, , none of motor controls works. assumed bts might busted. thought have more doubled minimum requirement (350/24=~15a), or did i? (later on figured out electric scooter motor under-rated meet legal requirements.. i'm assuming motor more 350w ?? tried measuring dc resistance, went low 1ohm, mean rating should have been 24v*24a = 576w) next

Thread: How to install Offline packages

i have collected packages friend through aptoncd have reloaded packages var/cache/apt/archives able install of packages double clicking dependencies missing hope so please how install packages terminal along dependencies please in advance... you'd have have .debs dependencies also. no internet connection on machine whatsoever? Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] How to install Offline packages Ubuntu

Generare segnale forte e stabile +/- 16 Volt

vorrei comandare un servo che accetta in ingresso un segnale +/- 16volt per far girare il motore velocità costante. la velocità viene rilevata tramite encoder, direttamente collegato ad arduino. escludendo priori l'utilizzo di un'uscita pwm per comandare un  mosfet, quali altre possibilità ho? a rigor di logica un integrato dovrebbe esistere, visto che in automazione sono molto diffusi gli azionamenti con ingresso +-10volt. io devo far girare un disco e la velocità deve rimanere costante indipendentemente dagli eventi disturbanti(giusto per curiosità). l'unica soluzione che mi viene in mente è quella di usare un adc come il 5531 ma è fatto per andare +/-10volt , non sono riuscito trovarne uno che lavori tensioni più alte. resta comunque un dubbio, arduino sarebbe abbastanza veloce per seguire l'encoder, fare calcoli necessari ed aggiornare il valore? sarà molto apprezzato ogni genere di consiglio. il componente che cerchi si chiama amplifi

Why not skip the Arduino bootloaders and use something like USBASPLoader?

i have projects don't uart, need upload firmware atmega328p, example.  using usbasploader emulate programmer seems cheapest , best solution. my question is, why doesn't more people use it? because lose hardware uart that?    okay, benefit of others here, "usbasploader" bootloader emulates usbasp, upload on usb. uses vusb usb on non-usb 328p. why causes lose hardware uart? don't see why would, unless has peculiar dependence on that? i think there few reasons: * it's new, didn't exist when uno created. * it's not compliant usb spec (neither usbasp's - vusb isn't standards compliant, it's hackjob) * there readily available arduino compatible microcontroller native, real, usb support (32u4 based boards micro/leo) * optiboot 512 bytes, usbasploader 2k. * serial adapters cheap, , can removed when not in use i think people here use bootloader + serial development , debugging, , if they're more serious project , w

Thread: Editing a menu.lst file?

i have installed xubuntu. when cd /boot/grub, can't find menu.lst file edit. how edit grub menu @ startup? tia grub 2 default boot loader , manager ubuntu 9.10 (karmic koala). community/grub2 the grub 2 guide grub 2 - 5 common tasks grub 2 title tweaks Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [SOLVED] Editing a menu.lst file? Ubuntu

Understanding a code

hello, im complete lake if comes arduino. however, have managed build awesome projects far. oke found code on internet controlling youre arduino via bluetooth. basic idea hook op ho-06 bluetooth module arduino , send information via app on phone. however, not understand how code works. can edit use other trigger words or make performe different action, want make recive variable value arduino can use dimm led. (as start project) cant figure how that. (btw, sorry bad englisch, im netherlands) here code, , youtube video of original project: please explain it? //http://www.youtube.com/user/greatscottlab code: [select] int ledred=8; int ledgreen=9; int ledblue=10; int tx=1; int rx=0; char inserial[15]; void setup(){   serial.begin(9600);   pinmode(ledred, output);   pinmode(ledgreen, output);   pinmode(ledblue, output);   pinmode(tx, output);   pinmode(rx, input);   allpinslow(); } void loop(){     int i=0;     int m=0;     delay(500);                                             

CS4 - crash with healing brush

again, today, have spinning beach ball after using healing brush on 489 mb image. i have restart macpro (os 10.5.6) , - of course -i lose last 15 minutes of work. can't afford save every 60 seconds, , repeated crash event me. how photoshop crash report see wrong? i can @ mac's console report after restart - way? dick if photoshop hung, don't have restart machine- force quit photoshop. and crash report takes while come (if macos decides take while gathering data). you crash report come when photoshop crashes. More discussions in Photoshop Macintosh (read only) adobe

Control motor paso a paso

compañeros del foro les presento mi duda, quiero controlar un motor pasos con matricula 2byj-48 y un driver ul2003, logro que gire y todo, pero el problema es que cuando quiero ejecutar secuencias de pasos el motor se vuelve loco debido al programa, espero su asesoria. les anexo el codigo de arduino que estoy usando: code: [select] int retardo=3;          // tiempo de retardo en milisegundos (velocidad del motor) int dato_rx=60;            // valor recibido en grados int numero_pasos = 0;   // valor en grados donde se encuentra el motor string leecadena;       // almacena la cadena de datos recibida void setup() {                serial.begin(9600);     // inicializamos el puerto serie 9600 baudios pinmode(11, output);    // pin 11 conectar in4 pinmode(10, output);    // pin 10 conectar in3 pinmode(9, output);     // pin 9 conectar in2 pinmode(8, output);     // pin 8 conectar in1 } void loop(){ while (dato_rx>numero_pasos){   // girohacia la izquierda en grados        paso

Issues with pausing a BlinkWithoutDelay time

the code runs when button pressed. stops running, should, when button pressed again. however, when button pressed again start, program reads continuously running currentmillis timer , updates targetcount when should have been "paused". i want keep time button2counter odd number. when button2counter becomes again, add time elapsed while counter odd previousmillis variable. way, program delay increasing targetcount until targettime has elapsed. why isn't 'pausing' should? code: [select] unsigned long currentmillis = millis();     if (((button2counter % 2) == 0)) {     previousmillis = (previousmillis + elapsedmillis);     if (currentmillis - previousmillis >= targettime) {       if (m == 0) {         //first iteration not increment until time elapses         previousmillis = currentmillis;         m++;       }       else {         previousmillis = currentmillis;         elapsedmillis = 0;         // increase target count         targetcount++;   //delay

Thread: How to use a driver(saa7134) from kernel 2.6.28(ubuntu 9.04) in 2.6.31(ubuntu 9.10)

some change in 2.6.31 kernel driver saa7134-based tv capture cards has made impossible change channels after upgrading ubuntu 9.10. of course makes card pretty useless unless want watch channel 2. want use old, working, driver new kernel. i've reported bug, past experiences have left me little confidence in that. how can compile , install old saa7134 driver separately kernel package , inhibit 1 in package being used? how can without getting screwed when ubuntu decides install new kernel package? why aren't individual drivers maintained independently kernel in linux? (like nvidia drivers example) Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [ubuntu] How to use a driver(saa7134) from kernel 2.6.28(ubuntu 9.04) in 2.6.31(ubuntu 9.10) Ubuntu

Thread: Skype client going Open Source...

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i read interesting article on slashdot linux skpye client going opensource soon. https://linux.slashdot.org/story/09/...nearest-future site linked article down (slashdotted!) looks main core compiled binary rest of client being open sourced. might of issues people have been having skype client... official statement skype: http://share.skype.com/sites/linux/2...en_source.html posted solitaire i read interesting article on slashdot linux skpye client going opensource soon. https://linux.slashdot.org/story/09/...nearest-future site linked article down (slashdotted!) looks main core compiled binary rest of client being open sourced. might of issues people have been having skype client... i sound of that. major improvements. Forum The Ubuntu Forum Community Ubuntu Community Discussions Th

Traducción al español del tutorial Oficial para la creación de Plantillas - Joomla! Forum - community, help and support

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hace algunos días algunos  compañeros y mi persona hemos acabado una interpretación del tutorial en ingles para la creación de plantilla en joomla. la url es  http://www.aulaideal.com/content/catego ... /48/&nbsp; espero sea de utilidad todo la comunidad joomla de habla hispana. un abrazo desde lima-perú Board index Joomla! International Language Support International Zone Spanish Forum Idioma y traducciones

Thread: Beep code/ won't boot

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recently went boot computer. seemed fine opened rhythmbox play song , 3 seconds in computer froze. went reset , when booted gave me beep code 1 short beep 1 long. kind of nvidia motherboard believe , can't more info because @ school @ moment. i'm assuming has nothing of bootable devices because tried booting sata cables unhooked mobo. may fear has memory or processor or mobo together. appreciated edit: , yes have googled problem , when list of beep codes none of them 1 have i gave search , you're right pretty doesn't seem exist on google. but... did come along this. long shot but http://www.ocforums.com/showpost.php...2&postcount=30 Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [other] Beep code/ won't boot Ubuntu

configuration chmod on widows xp? - Joomla! Forum - community, help and support

i running following: win xp pro apache php mysql filezilla ftp server all on localhost:8080 and cannot darned configuration.php chmod'ed i keep getting "an error has occurred! unable open configuration.php file write!" can tell me how chmod in windows? many in advance! in windows explorer, find configuration.php file, highlight , right click on mouse.  ths should bring window see item "properties" near bottom of list. left click on properties , window appear see "attributes" check boxes. if read-only box checked , clear , click on ok. Board index Joomla! Older Version Support Joomla! 1.5 General Questions/New to Joomla! 1.5

I have a problem using ethernet shield on arduino!!

hi, bought ethernet shield runs w5100 , have trouble using this. i have built php , mysql , when type localhost/arduino/test.php?sensor1=50 in address bar on internet, works fine , store "50" database , displays on localhost website. ----------------------------------------------------------------------------------------- #include <spi.h> #include <ethernet.h> byte mac[] = { 0xde, 0xad, 0xbe, 0xef, 0xfe, 0xed }; byte ip[] = { 169,254,15,174 }; byte server[] = { 127, 0, 0, 1 }; float sensor1 = 5; ethernetclient client; void setup() {   serial.begin(9600);   ethernet.begin(mac, ip); } void loop() {   if(client.connect(server, 80))   {     serial.println("connected");     client.print("get /arduino/test.php?");     client.print("sensor1=");     client.print(sensor1);   }   else   {     serial.println("connection failed");   } } ----------------------------------------------------------------------------------------- t

Thread: Need help opening email links

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when ever try open link fron email, 'application launcher' opens. how firefox open link has done me? attached images screenshot.jpg (101.2 kb, 6 views) you can change settings in system>preferences>preferred applications. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Need help opening email links Ubuntu

Projet barriere infrarouge

bonjour, j'ai pour projet de mettre en place une barrière infrarouge sur une distance de 15 mètres. pour cela je dispose d'un récepteur infrarouge sharp gp1u5y p424 et de différentes diodes émettrices. pour l'instant le récepteur est placé dans un tube pvc devant un trou percé de diamètre 5mm. j'ai pu tester certaines led émettrice, certaines ne fonctionnent pas, d'autres à moitié et une seul fonctionnait correctement ( mais grillée et je n'ai aucune référence ) . je voulais savoir si quelqu'un avait déjà essayé cela sur un tel distance, si oui quels conseils avez vous ? avez vous une idée de la meilleur led émettrice à utiliser ? merci d'avance salut, les faisceaux ir on souvent une portée limitée à environ 10m! je ne connais pas ton domaine d'application mai je pense que tu devrais t'orienter vers une solution laser car celle-ci pose moins de problèmes de distances. Arduino Forum

Error: Droplets not working in Adobe CS3 and CS4

i trying run droplets associated program company uses prepress purposes. program run uses photoshop in background run actions , create our color separations. running adobe photoshop cs4 , windows vista sp3. when try loading file through our program opens photoshop displays "droplets have stopped working , program must close". unsure version of photoshop used create droplets (either cs2 or cs3). something have tried around making copy of droplets , changing file name .exe .atn , placing them in presets>actions folder in photoshop file. when reload photoshop, show on dropdown menu in actions menu cannot loaded because photoshop says not compatible version of photoshop. i @ brick wall here , not know try next. if has ideas, appreciate it. thanks! More discussions in Photoshop Windows (read only) adobe

Pro micro driver problem

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hi i can't remember how did it, got pro micro set on development pc. initially, followed guide: https://learn.sparkfun.com/tutorials/pro-micro--fio-v3-hookup-guide/installing-windows. on same pc made sketch uses mouse lib send small, infrequent mouse movements keep pc going sleep. works fine on pc. it doesn't work, however, if plug other pc. tried on second pc (win 7 ultimate x64 - same development pc) , on work laptop (win 7 enerprise x64). the message usb device not recognized. in device manager it's listed "unknown device" under universal serial bus controllers. why need driver anyway make "native mouse" work? don't need drivers regular mice or keyboards... if try installing driver sparkfun guide message "the best driver software device installed". tried using "has disk" option , selecting driver file explicitly none of .inf files in archive sparkfun accepted. any ideas? if clone arduino may still

Thread: Minimizing disk space / RAM usage

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hello again. i'm trying minimize amount of disk space ubuntu takes up. far have reduced size 3.9 gb, minimize further (i'm going clone hard drive). using disk space analyzer tool, can see of space being taken /var/cache. safe remove of files in here? if so, ones? trying reduce amount of ram system takes run. right base amount around 78 mb on startup, seems xorg taking majority of ram usage. using metacity (no compositing). there someway can reduce footprint of xorg further? used have bootchart installed, have sinced removed it. since then, removed quiet , splash grub entry. can still see bootchart being loaded (on startup), , process killed. have purged configuration files , everything! system boots fast, seems of time used shortly after apparmor profiles loaded. seems sit there few seconds before fsck, , few more seconds after. can minimize well? again! can't bootchart, , i'm assuming you