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Showing posts from January, 2012

Communication avec nRF24L01

bonjour à tous, j'envisage de placer plusieurs capteurs chez moi ( température, pir etc .. ) pour une installation domotique avec un raspeberry et domoticz. j'arrive à le faire très facilement avec des wemos d1 min en wifi mais c'est assez energivore...trop ... je pense donc le faire avec des nrf24l01 mais je n'ai encore jamais utilisé ces petites bêtes là ! ... peut on utiliser un récepteur et plusieurs émetteurs ? bien sûr je vais utiliser un mini pro pour gerer les nrf et communiquer avec le raspberry... donc, cas concret  : mes emetteurs un pir avec pro mini et nrf un dht 22 avec pro mini et nrf mon recepteur : un nrf avec pro mini c'est possible ça ? un coup de main pour le code ou un lien vers un tuto ? ... je trouve bien un émetteur / 1 récepteur mais pas plusieurs émetteurs et un seul récepteur merci d'avance j'ai vu le blog d'une personne ayant utilisé ses modules, mais il n'utilise pas domoticz mais son propre

Thread: install ubuntu on a hackintosh netbook

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i have dell mini 10v mac os x on chameleon v2.0-rc3 boot loader , want install ubuntu , use grub boot loader , still able access hackintosh partition. want know go normal ubuntu installation , resize partition, , should see hackintosh there , or have add afterwards boot menu? posted sansa dude i have dell mini 10v mac os x on chameleon v2.0-rc3 boot loader , want install ubuntu , use grub boot loader , still able access hackintosh partition. want know go normal ubuntu installation , resize partition, , should see hackintosh there , or have add afterwards boot menu? using grub-legacy. had chainload mine. chainload because installed darwin in osx partition. grub, selecting osx, segue darwin , boot os. mention because not know how/where/if installed darwin nor have experience chameleon. luck.

Thread: Karmic Koala ugly gdm bg fix

i hated ugly brown loading/login background in karmic koala so, fiddled things till found fix works. hope helps! people looking replace ugly brown background gdm screen: simple workaround. first - open terminal , type: sudo nautalis type password when prompted , minimize terminal (you root in nautilis) , navigate /usr/share/images/xsplash via window opened (this allow rename , edit xsplash background) second - download or create bg of choice , save desktop. third - make name of file same 1 in usr/share/images/xsplash (in case bg_2560x1600.jpg) fourth - drag new image xsplash folder (usr/share/images/xsplash), replace when asks (good practice backup originals) , wallah! no more ugly brown screen. since same image used splash screen , login screen, there no more brown. can edit white loading bar (with gimp or whatever) but, is. yep, when designed new gdm upstream did not preserve ability customize gdm. gdm

[SOLVED] - Intermittent error 500 with IE7 when saving with TinyMCE 2.0 editor - Joomla! Forum - community, help and support

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hi, i running august 22 nightly build, , error 500 (with message "article must have text") periodically when using ie7 tinymce 2.0. not error firefox 2, nor error ie7 , xstandard 2.0. when error occurs, browser address bar set to: "http:// /index.php" instead of expected: "http:// /index.php?view=article&id=58&itemid=1&option=com_content". it not clear causes error, though reducing amount of text in page seems cause more increasing amount of text. however, page has fair bit of text, when error occurs. see full text of error page below. dennis vvvvvvvvvvvvvvvvvvvvvvvvvv 500 - error has occured an error has occurred while processing request. please try 1 of following pages: home page if difficulties persist, please contact system administrator of site. article must have text ^^^^^^^^^^^^^^^^^^ fyi, i've tracked down far save() function in controller.php. line: $post['text'] = jrequest::getvar('text', '', 'post

Thread: Screen Goes Blank

i new linux, have removed windows machine , installed ubuntu 9.10 every thing went fine when installed , able install packages. when shutdown machine , restart later shows me ubuntu icon on screen , screen goes blank , no drums sound also. used restart machine , keep on pressing "ctrl + d" able normal screen. please issue getting solved. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] Screen Goes Blank Ubuntu

gleitender Mittelwert in der laufenden loop zu langsam

hallo leute, habe ein problem mit der performance eines (gleitenden) mittelwertes in meiner loop. folgende situation: eine led blinkt im 0,5sek takt. ich greife das licht über einen sensor ab. soweit kein problem. mittelwert zwischen blinken und aus sind deutlich. sobald aber meine loop läuft "stottert" das ganze. im ersten versuch habe ich einen normalen mittelwert von 10 messungen gebildet, jedoch stoppt hier der ablauf, nicht schön ist. im zweiten versuch habe ich einen gleitenden mittelwert versucht, aber dieser bekommt wohl pro loop nur einen wert. ich hoffe ihr könnt mir weiter helfen ?! die interessanten stellen sind zu beginn der loop und ganz ende gruß christian code: [select] // stepper1 hülsenmotor 5- 8 // stepper2 schubmotor  9-12 // d22 magnet // d23 start // d24 load // d26 vibr // d3 taster hülse // d4 taster schub // d25 schalter produktion // a0 led load // a1 led tabacco entfällt // d2 servo entfällt // d49 stop // d28 taster vibr entfällt #include

Change Time Format in Joomla 1.5 - Joomla! Forum - community, help and support

hi, while i've mastered joomla 1.3 still strugling 1.5.  want change time format articles.  instead of day,date,year,time want change order. anyone know make change?  in joola 1.3 in language > engliish.php thanks welcome forum! modify following lines in /language/en-gb/en-gb.ini file: code: select all date_format_lc=%a, %d %b %y date_format_lc1=%a, %d %b %y date_format_lc2=%a, %d %b %y %h:%m date_format_lc3=%d %b %y date_format_lc4=%d.%m.%y date_format_js1=y-m-d Board index Joomla! Older Version Support Joomla! 1.5 General Questions/New to Joomla! 1.5

application/x-httpd-php error - Joomla! Forum - community, help and support

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i have client has site hosted godaddy.  the site working fine until 2 days ago. site http://www.asktheagent.info now when click on of links on menu error - see image below: i called godaddy support see if on server had changed , tech said nothing had , not me with. google searches indicate might can change in .htaccess file? or mime type? has experienced this?  cause of sudden start happening? swear didn't edit .htaccess file recently. thank  assistance! lynette +++++++++++++++++++++++++++++++++++++++++++++++++ my .htaccess file below: ## # @version $id: htaccess.txt 2368 2006-02-14 17:40:02z stingrey $ # @package joomla # @copyright copyright (c) 2005 open source matters. rights reserved. # @license http://www.gnu.org/copyleft/gpl.html gnu/gpl # joomla! free software ####################################################### #  read if choose use file # # line below section: 'options followsymlinks' may cause problems # server configurations.  required use of mod_rewrite, ma

controlling existing LEDs on a pcb - Raspberry Pi Forums

i want reuse leds on old modem. problem following: + on leds shared on line. ground individual leds. if other way around connect each individual + on leds gpio-pins on pi , wire 1 of grounds ground on pi. have idea how can solve this? connect each led indivdual gpio + ground i'd activate other leds shortened together. connect + 3.3v, connect - of each led gpio via suitable resistor. when gpio high (on/1) led off. when gpio low (off/0) led on. have reverse logic in program turn gpio off turn led on. raspberrypi

Return component value from database params - Joomla! Forum - community, help and support

i have built component backend admin tool store email address parameter component. i can store , retrieve parameter database in backend, however, cannot return front end populate form field. the value stored email=myname@myemailaddress.com in backend in front end wish return it. code i've got is: com_eventbook/eventbook.php code: select all defined( '_valid_mos' ) or die( 'direct access location not allowed.' ); // include support libraries require_once( $mainframe->getpath( 'front_html' ) ); require_once( $mosconfig_absolute_path.'/includes/phpmailer/class.phpmailer.php' ); // handle task $task = mosgetparam( $_request, 'task', '' ); $event_id = intval( mosgetparam( $_request ,'event_id', 0 ) ); $menu =& new mosmenu( $database ); $menu->load( '33' ); $params =& new mosparameters( $menu->params ); $params->def( 'email', '' ); switch ($task) {    case 'submit':       submiteve

Wired results with HC-SR04

i using hc-sr04 ultrasonic sensor. have tested , works fine. in program transferring data on 16 wires raspberry pi. if put relevant ultrasonic code in void loop works fine. if put relevant ultrasonic code in in function , call in void loop half results 0 when transmitted raspberry pi if sensor seeing nothing. paradox same results fine in serial monitor. i have tested code on raspberry pi side , works fine. my code wip , things might wired, irrelevant, or out of place, have not coded yet. working code: code: [select] int outputpin = 39; int aclock = 22; int rclock = 23; int type = 0; int header = 0; int sign = 0; int value = 0; int repeat = 0; int triggerpin = 52; int echopin = 53; int duration = 0; int distance = 0; void setup() {   // booring setup part program       setup here        setup here      setup here   serial.begin(9600); //  changepinmode(output);      for(int = 24; < 40; i++) {     pinmode(i, output);   }      for(int = 24; < 40; i++) {     digitalwrite(i,

Adobe Photoshop CS3 has stopped working

photoshop working yesterday, i'm getting message: "adobe photoshop has stopped working. a problem caused program stop working correctly. windows close program , notify if solution available." i have uninstalled/reinstalled photoshop , still same message. dell xps 420 windows vista home premium. 3gb ram adobe cs3 design premium thanks reset prefrences steve. http://www.adobeforums.com/webx/.ef4a07f/1 More discussions in Photoshop Windows (read only) adobe

Thread: Problem burning iso?

hi all. tried process of downloading iso file, verified md5 sum, good, , downloaded , installed iso recorder (im on vista). when go burn iso cd, in iso recorder gets 100% , flashes @ end of progress bar, never completing, have shut down machine cd out, and cd of course isn't recognized @ boot. idea why, anyone? lot, 'meist oh. after while saw progress bar got way 100%, stopped flashing, no finish. tapped on laptop on top of cd/dvd, , made some noise , gave error in iso recorder: operation has failed. code 800040005, reason: unspecified error. heard of this? seems dvd drive works, @ least read pics on cd had... Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] Problem burning iso? Ubuntu

Serial RS232 from Scale

hello. feel though close answer. not there yet. can help? i'm trying input shipping scale arduino. can manipulate input , output more interesting. i'm not worried manipulation. right now, i'm trying arduino recognize scale's output. 01 ------ first, got scale sending data via serial cable com1 port of computer. can read via putty or accessport fine. see images attached config settings, wiring diagram, , results. yeah, scale works. 02 ------ next tried using arduino without scale. connected windows computer via com1 arduino (using max3323 chip power levels right -- https://www.arduino.cc/en/tutorial/arduinosoftwarers232). arduino sends incoming message mac computer, connected via usb. works fine. again, see attachments below. i'm using exact same config settings in accessport step 01 above. and see code here: code: [select] #include <softwareserial.h> int result = 0;                   // lbs on earth (or inputted value) int resultmoon = 0;           

Photoshop Lag with mounted Network Drive

me , co-worker have same problem, work in production environment. of our work on network. using cs3. have 4 other macs mounted on our desktop. there 1 drive when mounted, our files take 5 minutes open , or save if file opening on our desktop , 1meg. if eject drive photoshop returns normal. mac mounted our customer file server stuff need open in photoshop on drive has mounted. problem seemed start when upgraged cs3. any help? it sounds if basic maintenance needed on recalcitrant mac. run repair permissions, cocktail , diskwarrior , see if helps. could hd in mac heading south? make sure backed-up! More discussions in Photoshop Macintosh (read only) adobe

Installed Apache MySQL & PHP on a webserver external problems -- please help - Joomla! Forum - community, help and support

i have setup webserver have installed latest versions of mysql, php, apache , joomla when creating joomla website on webserver both front end , end show fine. because not live, sum 1 computer has go http://ip address of server/sitename/index.php fine shows front end distorted , no template showing , same in backend. not sure if apache or can help? you have change configuration.php reflect live site address. Board index Joomla! Older Version Support Joomla! 1.5 General Questions/New to Joomla! 1.5

how to get 51 ohm resistance from 56 ohm resistor

hi, i want emulate 65ma load driven 3.3v. v=ir, i've calculated need 51 ohm resistor. only have 56 ohm resistor, there way can make circuit 51 ohms? thanks   you connect 56Ω resistor , 560Ω resistor in parallel. 50.9Ω. (you can buy 51Ω resistors.) resistor 51Ω ±5% 0.5w n.b. 1 linked 5% tolerance. could  almost 54Ω. real accuracy, use 1% resistor(s). Arduino Forum > Using Arduino > General Electronics > how to get 51 ohm resistance from 56 ohm resistor arduino

right code for arduino mega 2560, midi mapping in DAW is fluctuating

i trying make midi controller 16 potentiometers, push buttons , sensors arduino mega 2560. have been able use usb midi dont need 5 pin din io. have spent days , night looking right codes arduino mega 2560 use potentiometers, buttons, multiplexer , sensors have got no clue far. kinda frustrated. got code uno , site says have done direct port manipulation uno specially , dont know how change codeforunotto mega 2560 or should do. still if upload code have lot of fluctuations problems due when try map knob in daw, automatically takes values without me touching controller , keeps changing. looking , hope guys expertise can me out. appreciate if send me link code supports mega 2560 , notes on how manipulate basic codes per required numbers of buttons , controllers. thank . quote i have spent days , night looking right codes arduino mega 2560 use potentiometers, buttons, multiplexer , sensors have got no clue far. your time have been better spent learning write

Help - what does this error message mean?

hello, this error message getting.  arduino: 1.6.9 (mac os x), board: "arduino/genuino uno" /users/jillgoodridge/documents/arduino/space_ship/love_o_meter.ino: in function 'void loop()': love_o_meter:49: error: 'baseline' not declared in scope  }                          ^ /users/jillgoodridge/documents/arduino/space_ship/sketch_1.ino: in function 'void setup()': sketch_1:3: error: redefinition of 'void setup()'  void setup(){       ^ love_o_meter:9: error: 'void setup()' defined here      pinmode(pinnumber,output);       ^ /users/jillgoodridge/documents/arduino/space_ship/sketch_1.ino: in function 'void loop()': sketch_1:10: error: redefinition of 'void loop()'  void loop(){       ^ love_o_meter:18: error: 'void loop()' defined here    serial.print(sensorval);       ^ exit status 1 'baseline' not declared in scope this report have more information with "show verbose output during compilati

PID help

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hello! i'm having trouble conceptualizing how go implementing pid drone. there few ways i'm thinking implementing pipeline: having 1 pid object each of 6 motors, having 1 pid object each axis how implement pids on per-motor basis: how implement pids on per-axis basis: i'm guessing second 1 best course of action, can put it's own loop, pid data available on-demand, oppose calculations on spot. object oriented, , runs in background. the first 1 has it's appeals, too. eliminates of caluclations needed in order find acutal value. procedural, , straight forward , performes on spot. what guys think? why think trigonometry needed?  there 4 independent control loops, roll, pitch, yaw , thrust, you output suitably weighted motors (thrust instance goes same sign all, yaw sign depending on prop spin direction, etc).  linear, control loops linear... the tricky bit if saturate 1 of motors, loops no longer independent and you crash! and want arrange

External Power with USB

hello sir/mam,                        can use 9 volt 2 amp adapter power arduino , usb(tablet) data transfer simultaneously. there dangerous tablet , arduino or not.second in condition arduino digital pin output load on usb power or adapter power? all arduino boards usb connectors have smart circuitry selects correct power source. can plug in power of power pins , select correct 1 , won't damage usb devices. it possible screw wrong voltage on wrong pins take effort on part.  @ documentation , try understand before connecting everything. Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > External Power with USB arduino

Respiration Rate using accelerometer

hi, i'm doing project in have measure respiration rate of person. actually, i'm trying accelerometer, couldn't find usefull information/algorithm obtain frequency readings able distinguish body movements torax movements (the accelerometer in torax of person). do have information/ideas on how can make work? do think there easiest way obtain it? thanks in advance! keep in mind respiratory motion rather minor, , if person moving little, not getting reliable information technique. Arduino Forum > Using Arduino > Project Guidance > Respiration Rate using accelerometer arduino

Curves adjustmentlayer in cs4, are there any way to get it to work like in cs3?

hello i adjustments in layeradjustment layers , new input window curves arent responsive "normal" curves interface.. there way go around or need go cs3 :( realy love rotate canvas feature dont want to.. try installing curves-dialog panel available here: http://www.jnack.com/adobe/configurator/curves-dialog.mxp.zip more info here: http://blogs.adobe.com/jnack/2008/11/configurator_is_live.html More discussions in Photoshop Macintosh (read only) adobe

Thread: Synchronize large directories: how?

how can best syncronize large directories between laptop , several desktop machines? have used unison in past, unfortunately, unison directories gives me error: "fatal error - lost connection server" , on console shows: "fatal error: trying transfer data in 1 go. if happens during update detection, try to synchronize smaller pieces of replica first using "path" directive." have searched mailing list , other web sites there seems no solution other manually splitting synchronization chunks not practical in case. -- there other alternatives unison can handle larger file areas? there solution unison problem? i use cp command this. have both ways though if files changed on both machines. cp cpommand use won't overwrite same on target machine. use nfs connect shares, work on ssh , samba. code: cp -urvp /pathto/externaldrive/* /pathto/backup/directory/ do? cp

bluetooth, gestire dati in ricezione in presenza di variabili

salve, ho un problema capire come gestire dati che ricevo su arduino tramite bluetooth. riesco programmare per fare in modo che, se invio una lettera o un numero, alla ricezione di quella lettera o numero l arduino faccia una determinata cosa, ma come si possono gestire variabili tramite un ciclo for? faccio un esempio per spiegarmi meglio. code: [select] #include <softwareserial.h> softwareserial bluetooth(10, 11); string bluetoothdata; int nuovoval; void setup() {   bluetooth.begin(38400);   bluetooth.println("bluetooth on");   } void loop() {      if (bluetooth.available()){ bluetoothdata=bluetooth.readstring();  for (int = 0; <100; i++){    if(bluetoothdata=="test" + i){     nuovoval=i;    bluetooth.print ("nuovo valore impostato : ");    bluetooth.println(nuovoval);           }     }   } } fin quando devo gestire due o tre variabili mi creo gli if per ognuno e risolvo, ma se voglio gestire una mole di variabili piu elevata, c'è

saved layered .psd files display text in preview column

hi, i have layered files have saved. when view files in column format, in preview area, text appears, not image. can't read text tiny. when magnified couldn't red it. seems happen files saved .psd, not jpegs. has happened other people? if have solution, other flattening file, wish save layers, please me. thank in advance. click here advice on how ask question correctly quicker answers. thanks! More discussions in Photoshop Macintosh (read only) adobe

Thread: Strange Problem: Lost my GUI?

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update: "fsck" command seemed solve problem, although everytime think fixed comes up, odd power fluctuation on motherboard or something. have strange problem , attempt concise , make sense thread: couple months ago had strange issue grub which posted about . due dual boot (xp/ubuntu on seperate disks) xp disk showing signs of eminent failure , therefore causing weird grub errors. started working again though there no problem after backed moving important files ubuntu drive incase xp drive failed. fast forward last night, had work in room pc located, unhooked , placed in room. when finished booted , got same behavior motherboard screen sticking , getting grub errors, figured here go again. after restarting on , on knowing load grub list, boot xp , disk checker starts "deleting index entry" , "usn journal verification" messages. ok fine, i've seen before. xp , use normal when sudden bs of death memory problem. after

choix composants infrarouge

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bonjour je souhaite faire des essais de transmission/réception infrarouge et devant la quantité de composants disponibles je suis perdu. le projet est un système de chronométrage de modèles réduits (donc en extérieur) piloté bien sur avec arduino. la distance de détection sera de 4m maxi. pour l'émission, je pense opter pour une led 100ma et un angle le plus réduit possible sfh4554. pour le capteur, tsop 34838 ou tsop 4838 (d'ailleurs, quelle est la différence entre les 2 ? j'ai parcouru les datasheet mais mon niveau ne m'a pas permis de faire une distinction. pouvez-vous m'aider à faire le choix des composants ? merci d'avance. philippe salut les gars personne pour me donner un petit coup de main ?  Arduino Forum > International > Français > Le bar (Moderators: jfs, Snootlab)

TCP port & series/com port connection

dear all, is there method make connection between tcp port , series/com port? as need input data computer form tcp port 9996, data come usb port. there solution solve problem? thank you!! wavet quote from: wavet on aug 24, 2016, 05:54 pm dear all, is there method make connection between tcp port , series/com port? as need input data computer form tcp port 9996, data come usb port. there solution solve problem? thank you!! wavet you need explain better. are asking how read specific tcp port? http://server:port or, asking how read serial com port? or, asking how create tcp server communicates usb device , sends data on tcp computer using specific port number? chuck. Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > TCP port & series/com port connection arduino

Preparing same-size images of varying size subjects.

i put post on saving web think bit different. if shoot big painting, resolution of detail - brushstrokes, canvas, imperfections adds overall feel of image. if shoot tiny/small image same lens/camera , fills screen details relief map of himalayas! can around that? notice sharpening can make difference principles here? there's going on when photograph painting that's 2 meters wide , next 1 20 cm. sort of things should aware of when absolute accuracy in reproduction ideal? i know lighting important struggle limitations of equipment. have 3 flashes , best attempt has been put 2 off camera @ sort of 45 degrees 1 in middle bouncing up. sorry if last part more photography ps i'm guessing there might few photographers out there ;-) thanks martin martin if original painting , camera of higher quality, not expect see difference in reproduction. use macro , tight can small stuff.your camera has many pixels available given subject,so fill frame , maximize pixels available.i ti

Crop Marks not in correct place when Bleed applied - possible Bug/Error?

apologies if has posted elsewhere - checked help, faq, forums , googled - can't find solution minor problem i'm having. i have created document cut 120mm x 120mm, wanted include 10mm bleed around made photoshop doc 140mm x 140mm. when go print dialogue have checked "corner crop marks", set bleed 10mm , in preview can see crop marks inside image, marking out correct 120x120 area. however, when click print marks appear on paper @ 140mm x 140mm area. has else had error, , more importantly, has found solution? i using photoshop cs3 (a site license of web premium), on mac g5 running windows xp sp2. have other machines & photoshop versions available, going test on them try , find out problem lies. i producing guides using photoshop @ moment , don't want include can't done! kev gilmour i have same problem. did find solution this? this weird! More discussions in Photoshop Windows (read only) adobe

switching power supply EMI Filter

hello all i have circuit 220v ac 5v dc 2a below pic. if ignore emi filter , work? i mean if change emi filter capacitor, have 5v 2a in output? tnx yes. the filter stops hash being thrown onto mains, but stops mains spikes getting circuit. one day fridge turn on, , circuit goes in smoke. i sense beginners level in electronics. if so, stay away mains connected circuits. you might kill else. leo.. Arduino Forum > Using Arduino > General Electronics > switching power supply EMI Filter arduino

NEW YORK CITY - tech needed

we ny based artist's studio seeking raspberry pi /arduino expert technician /problem solving genius assist in setting full body 3d scanning booth. we're hoping use pre-existing open source system developed http://www.pi3dscan.com, uses 100 networked raspberry pi's , cameras. the ideal technician have experience raspberry pi programming, general experience arduino or network programming help. must have passion , confidence learn , setup pi3dscan system. we operate full bed cnc router, hand held 3d scanner, , 3d printer. capable of building structural components of booth in house need technical guidance raspberry pi set up. competitive hourly rate offered, commensurate experience. project can flexible hours. this has potential lead more permanent position 3d scanning/modelling/printing technician right person. please in touch resume email rebekahbirkan @ aol Arduino Forum > Community

OpenGL Problem

installed copy of photoshop cs , great. however, 'rotate tool' not work! i have downloaded , installed patch adobe website, still no luck. i have nvidia geforce fx 5700 graphics card - techies able advise me if can 'rotate tool' work, there other downloads can try - have downloaded latest drivers graphics card. does nvidia geforce fx 5700 support opengl? hope can advise me. photoshop cs ? patch adobe website? 8o More discussions in Photoshop Windows (read only) adobe

SD Card Formatter no longer has size adjustment option - Raspberry Pi Forums

the sd card association's sd card formatter has been updated version 5, no longer has format size adjustment option. don't worry, has enabled default now. pick either partition , format it, , card default capacity. thought i'd give heads since it's recommended application around here. if still wants old 1 (because know will) have direct link still works. https://www.sdcard.org/downloads/format ... tterv4.zip so how insure instructions_readme.txt file in noobs_v2_4_4 archive corrected? installer "...beginners..." , has major error in step 2. raspberrypi

Calling parent function

i trying implement call parent class function without success. the base class : code: [select] class base {         public:         base();      child *children;     float thedelegate(char *arg); then child needs declare parent : code: [select] class child: public base {         public: ... but in order child see base   , must include base class in child (other wise error not know base) but code: [select] #include "base.hpp" , cause error on base, since include each other. (error on line child *children; saying unknown type name child" ). how can resolve ? quote from: gil22 on aug 03, 2016, 05:05 pm (error on line child *children; saying unknown type name child" ). check capilatization, unless typed memory , didn't copy+paste. do have include guards in header files? must reason. children not have derived type of parent. little less abstraction , lit more specifics can use see if example of x-y problem. you must include base.hpp

Thread: UK consumer electronics

so found out can buy laptop battery cells online rather cheaply , want upgrade battery life (2x1hr -> 3hrs+2hrs, ~£30 seams worth have old rig test on first). unfortunatly don't know go uk electronics, google batteries , consumer electronic produces lot of info no uk useful uk shops. brits go buy electronic components, maplin choice? also 1) safe put 3000mah cell 2000mah cell if give same voltage or higher power cell give more amps? 2) safe put 2x3000mah cells 2000mah go if give same voltage? 3) has tried , did work? if on google.co.uk, "pages uk" option @ all? can't think of other maplin, unless check yellow pages or local shop... Forum The Ubuntu Forum Community Ubuntu Community Discussions The Cafe UK consumer electronics Ubuntu

Thread: w3m and wordwrap

so solved word wrap issues nano ( see thread ) , stuck word wrap issues in w3m. problem: writing email (gmail) in w3m works fine, adds in spurious line breaks. press o options , change editor simple-editor (i believe syslink) nano. works fine. adds in line breaks. change editor gedit (i on ssh, remember -x) , still adds in line breaks. issue seems w3m adding hard breaks text. ideas? the more investigate (and boy, have spent time investigating this) more think issue gmail. in fact sentence being written on 40inch tv, in nano, in w3m, in screen, on ssh. , bet wraps okay when submit it. if case, might set terminal mail client, can control of wrapping in emails. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [SOLVED] w3m and wordwrap Ubuntu

image disk and WD PiDrive - Raspberry Pi Forums

i have image disk large 128 giga (file image.img). in standard mode if have sd card of 128 giga use win32diskimager put , boot raspberry normally. bougth pidrive of western digital connect raspberry 3. can tell me how can put image disk (128 giga) on pidrive step step? have not sd of 128 giga extract image. thank you max get second sd card, size, @ least 8gb. install raspbian system on it. mount 128gb sd card in usb adaper. connect both 128gb sd card (in adapter) , pidrive pi , boot new sd card. use "dd" copy image 128gb sd card device pidrive. can either boot pidrive , (using raspi-config) expand root partition, or while still booted on second sd card, use "gparted" (which you'll have install) expand root partition. or create 1 or more additional partitions in empty space, should choose. depends on want final system like. raspberrypi

VCCOUT on arduino Due

hey, tried looking around couldn't find answer. sorry if question comes lot. while connecting shield arduino due, accidentally removed 2 capacitors device. i added pictures, looking @ pcb objects removed c8 , c17, both connected along side few other capacitors atsam's vccout (i added sch pictures) i wanted know how important these capacitors are? should worry device or computers might connect it? lastly, replace them 100nf capacitors might have ?(i'm not sure have, might option). thanks! yotam well, general rule of thumb that, if designer puts part onto board, meant there. so, if have replacements suggest replace caps. within reasonable parameters ok replace caps of same size , value. there esr differences little cheapo 0.1uf caps dime dozen , pretty interchangeable. adding whatever have better having nothing @ all. exact value isn't terribly important either wouldn't go far outside boundaries. if have 0.047uf / 47nf caps fit that'

Thread: ظهور شاشة سوداء اثناء تثبيت الاوبنتو9.10

السلام عليكم اولا : انا نزلت الاوبنتو 9.10 من الموقع الرسمى ليها وطابقت التوزيعة وطلعت تمام وحرقت ملف الايزو على اسطوانة وكله تمام التمام ثانيا: دخلت الاسطوانة وبوت من الاسطوانة عشان اثبت النسخة ثالثا: فتحت الاسطوانة اول حاجة ظهرتلى اختيار اللغة اختارنا اللغة وبعدين صفحة اختيار هل انا عاوز اشوف التوزيعة الاول سى دى لايف ولا انستال وبقيت الخيارات اللى موجودة اللى كله عارفها لحد كده تمام رابعا: اخترت لايف سى دى الاول عشان اشوف التوزيعة من جوة ولو كده اثبتها , اول ما اضغط على لايف سى دى يجيلى شاشة سوداء ومفيش اى حاجة بتظهر على الشاشة خالص وبعد فترة بسيطة الاسطوانة تقف عن الدوران مش بسمع ليها صوت والشاشة بتفضل كده على طول ومفيش حاجة بتتغير خالص فبرجع اقفل اللاب توب تانى وافتحه والمرة دى اعمل انستال على طول مش لايف سىدى برده نفس القصة. قولت يمكن العيب من الاسطوانة جربت طريقة اليو اس بى وكله تمام وبرده بوت من اليو اس بى نفس الموضوع انا حاسس ان المشكلة من الشاشة بس مش عارف ايه الموضوع بالظبط. ملحوظة: انا استخدم لاب توب lenovo g550 مواصفاته: cpu : processor intel