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Showing posts from January, 2014

aargh. Have I done damage? (xbee powered from arduino 3.3V pin)

i've been experimenting xbees , have been powering them 3.3v pin of arduino's. realized 3.3v pin can deliver 50 ma. (i had stupidly assumed had capabilities similar 5v pin.) the arduino's seem functioning fine along xbee radios if i've broken anything, isn't apparent. i doubt it, lower voltage lower current draw. Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > aargh. Have I done damage? (xbee powered from arduino 3.3V pin) arduino

Arduino tft screen just shows lines.

i have arduino esplora natraul screen, screen new 1 robot, acouple people said had same problems. when turns on screen goes white, , after few seconds shows 4 black lines horizontally down screen block out, pong, or other program. seems screen broken, @ top loose (it can move , down) other hardware looks fine. other people saying sw problem , works fine on arduino robot only. help! , in advance! i spent long time searching answer this. once checked out arduino site, i found solution works me quickly . if using arduino libraries version 10.5, need update newer one, 1.5.6 (as of today). edit: attached picture of esplora issue. fixed. Arduino Forum > Using Arduino > Displays > Arduino tft screen just shows lines. arduino

How to jump to previous frame at end of movie clip?

using flash professional 8. have menu play movie button on frame 1, , movie clip on frame 2. on frame 1, action script reads: stop(); mybtn_btn.onrelease = function(){ gotoandstop(2); }; thus, on release of button on frame 1, goes frame 2 , begins play flv movie clip (using flvplayback). after 9 minutes, when movie clip over, stays on frame 2 , playhead of movie clip goes beginning. what action script should use tell go frame 1 @ end of 9-minute movie clip? thanks help. i got answer question @ actionscript.org here answer below. use code below in frame 2 , replace flvplayback instance name of component (movie clip) in frame 2: function complete(evt){ gotoandstop(1); } flvplayback.addeventlistener("complete",complete); More discussions in ActionScript 1 and 2 adobe

Is the FTP thing really a good idea? - Joomla! Forum - community, help and support

greets all: i have been running joomla long time. since before became joomla even. have uploaded beta 1.5. looks incredibly cool seems have things find questionable. one of main stickers ftp update idea. i'll admit had few interesting moments trying install work. solutions simple... download , use svn. ftp thing not work. following when try tell site save global configuration changes:         * jftp::connect: not connect host:localhost on port:21.         * jftp::connect: not connect host:localhost on port:21.         * jftp::_putcmd: not connected control port         * jftp::login: bad username.         * jftp::_putcmd: not connected control port         * jftp::_mode: bad response.         * jftp::_passive: not connected control port         * jftp::write: unable use passive mode message         * error has occurred! unable open config file write! so ftp account setup joomla had problem. went server , checked out configuration ftp account. couldn't find wrong there tried con

sound and hdmi - Raspberry Pi Forums

i have rp b+ connected tv using hdmi cable , no sound. pi use hdmi cable sound , don't have settings set correctly or need use cable av port rca connections on tv? i'm stumped. maybe need reload noob , try again. appreciated, thanks, g if tv connects in cea mode audio part of hdmi signal. set , make permanent with sudo amixer cset numid=3 2 # set hdmi sudo alsactl store # save audio settings raspberrypi

NTFS-3G not found? - Raspberry Pi Forums

hey guys trying experiment nas on network can't seem find ntfs-3g raspbian wheezy... there repo or should adding or something? thanks. http://prntscr.com/6tep5m - me trying install it... o.o i see here code: select all sudo apt-get update apt-cache search ntfs-3g apt-cache policy ntfs-3g raspberrypi

please help trying to use the "if" Statement Solved

hi i new , trying learn....please see simple sketch it works great   trying next   if delayperiod = 100  i start again , have delayperiod = 10....i cant correct  keep getting errors    thank in advance   patrick /*  test sketch learn. */ // pin 13 has led connected on arduino boards. // give name: int led = 13; int delayperiod = 10; // setup routine runs once when press reset: void setup() {                  // initialize digital pin output.  pinmode(led, output);     } // loop routine runs on , on again forever: void loop() {  digitalwrite(led, high);   // turn led on (high voltage level)  delay (delayperiod);               // wait  digitalwrite(led, low);    // turn led off making voltage low  delay(delayperiod);               // wait  delayperiod = delayperiod + 1; } try: if (delayperiod == 100 ) { delayperiod = 10; } Arduino Forum > Using Arduino >

help needed in DataGrid Server Behavior

hi, i average user. i facing problem asp datagrid function. have tried both ways could not succeed in edit/update function. i tried add additional column "edit update cancel button". later, tried add 1 column same functions. gives following error. system.exception: unsupported type attribute: integer at dreamweaverctrls.dataset.getdbtypefromstring(string str) at dreamweaverctrls.dataset.ondatagridupdate(object src, datagridcommandeventargs e) there 1 primary key containing unique value records. not trying update anyway. any appreciated thank p.s.: have sorted out ms visual web developer. not want to change 1 function, no matter how crucial is. More discussions in Dreamweaver support forum adobe

RS32 to IP - Raspberry Pi Forums

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does know if there way communicate telescope through com port? right have meade telescope lx-200 works through hand controller via com port want use raspberry pi on wifi move rs32 hand controller. advice appreciated it sounds interesting project , few google searches suggest might not 'that' difficult. looks telescope's com port standard rs232 serial port, there information here ( http://obs.nineplanets.org/meade/cable.html ) pin outs , making connector. raspberry pi has rs232 uart (another name serial port) see no reason why pi talk telescope. surprised see manufacturers provide documentation on protocol telescope uses, see here http://www.meade.com/support/telescopep ... 010-10.pdf . searched raspberry pi forum , found viewtopic.php?f=37&t=7628 possible. raspberrypi

Thread: Do I have to be local to manage "Users and Groups"?

hi. have local manage "users , groups"? reason i'm asking i'm getting ubuntu server using nx, , when go users , groups applet, 'unlock' button greyed out , can't in there manage them. remember admin thing want do. don't know app using, user dosent have privileges needed need do. in command line if user dosent have admin privs can't add people groups or create users Forum The Ubuntu Forum Community Ubuntu Specialised Support Ubuntu Servers, Cloud and Juju Server Platforms [ubuntu] Do I have to be local to manage "Users and Groups"? Ubuntu

led wiring help

hey all, so im trying wire in halo led's (12v source) car , harness made didnt work. way have wired follows... wire = 16gauge 12v source (one wire) ->  rocker switch -> (two wires out) -> 2 connectors -> (other side of connectors split 2 wires again) ->  +led wires (4 led halos) -> (-led wires grounded frame) so 12v 1 wire -> switch -> 4 wires out-> halos -> ground i had 1 halo working, i'm going on wire right now. there way control 4 led halos through 1 rocker switch? i'm not electrical componants im not sure if need regulator, inverter, etc... any appreciated!! do have link lights? Arduino Forum > Using Arduino > Project Guidance > led wiring help arduino

Misbehaving Hall sensor A1102EUAT = UGN3140

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hi everyone, i've bought hall-effect sensor (switch in case there is  small op-amp encased) , can't seem working! but weirder, it's working (partly) when reverse it's +5v , gnd... let me explain bit more, sensor 1 : http://www.selectronic.fr/capteur-a1102euat-ugn3140.html i fed +5v arduino, it's friend gnd , put 10k pull-up resistor between it's output , +5v. all far but... when probe it's output, stays firmly around 4,4-4,5v , doesn't react magnet can find. now, out of mistake (i'm bad), put it's vcc gnd , gnd +5v and, surprise, gives me steady -4,5v when close magnet, switches +5v!! well, it's not behaviour i'd see, , not right polarity works in reverse... how come!!!? and how can work right??? thanks help! marc for ugn3140 : flat side towards you, see text on it: left pin 5v , right pin output. for a1102eua-t : flat side @ ! left pin 5v, right pin output. are telling me made wrong connections looking @ wr

Bug in a extreme case in the accordion control from backend. - Joomla! Forum - community, help and support

i have been testing backend module , woud share this: description:     accordion control incorrectly shown. reported on:     joomla version 1.5 (trunk updated @ 2006/11/07) classification:     medium. affected functions:     accordion control. steps replicate:     - test accordion have made following change:         in file ".../joomla/includes.js/moofx/moo.fx.slide.js"         @ line  27  changed    "toggler.onclick = function(){"    by    "toggler.onmouseover = function(){"        - move mouse around , had weird results can see in attached files. analysis:     know extreme case want prove accordion. system info:     os: windows 2k     navigator: firefox 1.5.0.7     apache 2.0.59     php 5.1.6     mysql 5.0.26 i'll appreciate answers, thanks. Board index Joomla! Official Sites & Infrastructure Sites & Infrastructure - Feedback/Information Archived Boards - All boards closed

tty, ttyS and pts - Raspberry Pi Forums

is there somewhere learn is, , how works tty, ttys, pts, , numerations? , how know detected devices linux , files use? in advance! fpalma wrote: is there somewhere learn is, , how works tty, ttys, pts, , numerations? google? https://www.google.co.uk/search?hl=en&s ... gws_rd=ssl raspberrypi

Joomla Module Modding - SHEP Live Search - Joomla! Forum - community, help and support

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i'm running joomla , sep live search module ( http://www.jomres.net/ ). module basic search box , i'm wanting add styling it. example, make larger , maybe change background color. below code homepage , in i'll point out. have module in "right" position. how add css style modify search box. code: select all <?php defined( '_valid_mos' ) or die( 'direct access location not allowed.' ); $iso = split( '=', _iso ); echo '<?xml version="1.0" encoding="'. $iso[1] .'"?' .'>'; ?> <!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="<?php echo _language; ?>"> <head>     <?php if ( $my->id ) { initeditor(); } ?><?php mosshowhead(); ?>     <meta http-equiv="content-type" content="text/h

FIR filter

hello guys,how can calculate fir filter coefficients 5hz cutoff ? i tryed using site: http://t-filter.appspot.com/fir/index.html and result was: code: [select] -2.2204460492503132e-17 4.4408920985006264e-17 1 4.4408920985006264e-17 -2.2204460492503132e-17 is correct ? quote is correct ? you didn't sampling rate was. why wouldn't 'correct' anyway? it doesn't matter because coefficients equal 0, 0, 1, 0, 0 won't filter anything. pete Arduino Forum > Using Arduino > Project Guidance > FIR filter arduino

Thread: libjpeg is broken -- how do I fix it?

hello, messing around swiftweasel , tried install libjpeg7, somehow broke existing package. program depends on rendering jpegs either crashes of won't display image. have tried using sudo dpkg-reconfigure did not fix problem. tried removing libjpeg62 when try package manager wants remove every other package depends on (which several hundred packages). how can fix libjpeg62 package? in synaptic, right click -> reinstall? Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Desktop Environments [SOLVED] libjpeg is broken -- how do I fix it? Ubuntu

Motion problems - Raspberry Pi Forums

hi, developing low-cost surveillance system raspberry pi, raspberry pi noir camera , motion software. bit desperate because stops working. whole process have followed can found here: http://www.instructables.com/id/raspber ... -software/ stream works ok, detects motion events (i know because when detects motion stream reboots automatically). problem doesn't create 10 seconds video configuration asks when motion detected. actually, when finished setting motion, system created videos, doesn't reason. appreciate kind of can give me or if have found same problem, nice know how fixed it. in advance. stnnnx! as per link log file seems in /tmp/motion.log might provide insights. mean "stream reboots" ? pi reboot? -- raspberrypi

Flash file types

what's difference between project, flash file or swf file? flp - flash project file use group files make 1 project (.fla, .as, .jsfl, media files, etc) fla - filetype of flash authoring tool, , how editable flash files stored. swf - compiled version of fla or project. view on internet. compressed version of of information stored in editable workflows. as - actionscript file. houses actionscript code. swd - debugging file. created when debug fla, along swf. swc - compiled library can imported fla. grouping of code created re-usable. jsfl - flash javascript file. used build command can used inside of flash authoring tool itself. asc - actionscript communication file. used create flash media server applications. More discussions in Adobe Animate CC - General adobe

Thread: Ubuntu drivers?? Your opinion

after removing windows 7 partition laptop week decided fresh install of ubuntu 9.04 set in different manner , forgot set wireless hp printer (new model in 2009). girlfriend there when went print , had set using cups. after clicking 3 times installed drivers , printed , asked: "how did install printer fast , takes on hour put on laptop (winxp) , software breaks other programs?" got me thinking - how (ubuntu users) can have great access printer drivers when comes graphics cards takes years if ever?? (ie other laptop ati mobility radeon hd2600 still doesn't have driver) it goes down co operation between , hardware developers, hp have hardware developers linux, while ati doesnt... yet Forum The Ubuntu Forum Community Ubuntu Community Discussions The Cafe Ubuntu drivers?? Your opinion Ubuntu

xml re-loading using as2

hi i'm using xml populate swf file. firefox have change xml file , new changes seen immediately. with windows explorer have delete cache before changes visible. has else had problem? well, problem common. try this... when load xml file pass url variable in style. mean: xmlobj.load(" http://mydomain.com/file.xml?anyvar=anyvalue") doesn't matter name , value of varible. method makes xml taken dynamically xml file static server sends current xml file. note: if test on local throws error. you'll have test online. More discussions in ActionScript 1 and 2 adobe

Thread: Slow remote desktop

i have 2 ubuntu installations, 1 on quad core amd pc, , other on laptop. ultimate goal install squid , hamachi on laptop remote proxy. i'm connecting via remote desktop laptop (wireless) quad (wired) on same lan, , response in remote connection dog slow. think need turn colors down, gui doesn't have option. i'm using built in tools jaunty 9.04 on both systems. , problem searching these kind of problems on google search terms show everything. after couple of hundred hits, gave , decided ask here. tried howto tightvnc, clear that program updated between howto , me trying use it. didn't work. need faster remote desktop on lan. hoping absolute beginner talk forum that, of posts here pretty deep. can of folks me out? tia stubbs. are using vinagre? has worked me, faintest latency. Forum The Ubuntu Forum Community Ubuntu Official Flavours Suppo

Customise back-end - Joomla! Forum - community, help and support

hi, is there way can customise end? i want use joomla website of 1 of customers, find menu structure of joomla back-end little bit confusing. i rename menu points , add links reflects more content of actual homepage , more intuitive customer. there ways ? will joomla 1.5 support user rights management allows more specific particular user can do? cheers martin improved acl planned future versions of joomla, best thing keep close eye on roadmaps (on joomla.org main site) , see features added in version. besides standard user permissions under site > user manager, there no built-in modification of back-end joomla @ time, short of hacking individual php files. Board index Joomla! Older Version Support Joomla! 1.0 General Questions - 1.0.x

Pin status werden nicht aktuell gehalten

hallo mein arduino mega 2560 fragt einige pins ab und versendet die dann über ein wifi shield. verändere ich aber den status eines pins vergeht einige zeit bis es sich bemerkbar macht. ich habe es schon mit  digitalreadfast versucht aber keinen effekt hatte. main: code: [select] #include <sd.h> #include"sitze.h" #include "filemen.h"//holt  daten von der sd #include <wifi.h> #include <wificlient.h> #include <wifiserver.h> #include <wifiudp.h> char filename[] = "test.txt"; int port = 1511; int status = wl_idle_status;     // wifi radio's status ipaddress server(192,168,43,1); //wird im setup mit der getawey ip bestückt wificlient client; int time = 0; //sende intervall vom datensatz string maca = "";// macadresse filemen sdmen; sit as; void ssetup(){   serial.begin(9600);  } void lloop(){   as.get_data_d("test","test");   serial.println("data"); } void setup() {   serial.begi

Some issues with content publishing, a template and need a form functionality - Joomla! Forum - community, help and support

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hello all.. trying fit joomla wagon these days  my objective provide separate sections separate groups , isolate respective sections groups, using jaclplus extension. not providing backend access group content managers. doing submit-edit-publish function front end itself. my first question is, how make available sections/categories have created, in front end submit-article link. default joomla has latest news category listed there in drop down menu (rather link there creating content section only). though have created sections , categories not figure out how make them available in drop down menu users can submit articles in right sections. coming second question. holding lot of events , provide simple registration form users. in fact want provide simple checkbox can tick if want attend event. there several events running @ same time , convenient if registration happens on same page (chronological order). from organisers point of view, should have ordered list of memebers willing partic

Importing problem

ok, feel dumb asking but... oh well. started using mac, , put flash cs3 on - here 2 annoying things can't figure out: when import images library, symbols automatically created. want turn off, in preferences there's not option it. 2. after importing, when drag image on stage - makes thumbnail sized , have manually change correct proportions. also, there doesn't seem options in preferences change &quot;great new feature&quot;. anyone - advice, theories, appreciated. don't want have reinstall flash 8. thanks, codzprc More discussions in Adobe Animate CC - General adobe

Ultrasonic thickness testing with Arduino

i totally new arduino , i'd thoughts , advice on project i'm considering. i have seen numerous projects building ultrasonic range finder arduino used time delay between initial ultrasonic pulse , sound being reflected object.   in case of ultrasonic thickness gauges,  ultrasonic pulse sent through transducer held in direct contact object being measured , time takes sound reflected transducer converted distance.   it seems me real difference between ultrasonic range finder , thickness gauge type of transducer used. thickness gauge transducers relatively cheap compared price of instrument (which can run thousands of dollars decent unit) , wondering if type of thing can done relatively inexpensive arduino.  thickness gauge transducers operate on frequency of either 5 mhz or 7 mhz 5 mhz being popular.  using measure thickness of steel plate , need resolution of 0.001".  speed of sound in carbon steel 0.23  inch/µsecond , able measure need able time pulses between pul

Can't get cgi.remote_user from cfc anymore

i'm having trouble getting cgi.remote_user in cfc not returning flex in cfc return flex. the cfc returns cgi.remote_user when invoked cfm page. flex &quot;&quot; empty. can access cfc flex, can't cgi vars. it use work flex app using remoteobject until other day, had reinstall os, iis , coldfusion again. os: window server 2003 iis : 6 coldfusion: 8 don't know if i'm missing iis setting or if left on old fash remoting or cf setup allowing work. thanks i have similar issue. have ideas? here scenario: a user hits application , remoteobject calls cfc. cfc has login query uses cgi.remote_user variable. select (..user stuff) from (sometable) where (remoteuser = '#cgi.remote_user#' (well, in function, idea) anyway, if invoke using cfm file, result, expected. flex app see's nothing when run it. other queries work fine. if replace #cgi.remote_user# actual text, esc\mcneelg works fine. thanks. More discussions in Flex (Read Only) adobe

Menu Makers

i making transition golive cs2 dreamweaver cs3 via lynda on-line courses. in gl, used menumachine success in making custom menus. googled &quot;dreamweaver menus&quot; , found plethora of choices. i'd grateful experiences various offerings , recommendations. came site-building print side , have more modicum of understanding of css , structure @ best. not speed should on code. thanks in advance, joe the best there - right here - http://www.projectseven.com/ -- murray --- icq 71997575 adobe community expert (if *must* email me, don't laugh when so!) ================== http://www.projectseven.com/go - dw faqs, tutorials & resources http://www.dwfaq.com - dw faqs, tutorials & resources ================== "camelbreath" <webforumsuser@macromedia.com> wrote in message news:fo53ud$9cp$1@forums.macromedia.com... >i making transition golive cs2 dreamweaver cs3 via lynda > on-line courses. in gl, used menumachine success in making >

Printing TOC

to print toc, file says: click toc tab. select print button . select information print. it fails toc tab is, , can't find it. seems crazy waste time on such this; , have been easy make instruction clear. go view -> pods -> project manger. once have pod open, double click on default toc found in table of contents folder. i vaugley remeber seeing somewhere in help, can't remeber now. More discussions in RoboHelp HTML adobe

Working with breadboard - Raspberry Pi Forums

hello, ask. can work breadboard (connecting sensors breadboard) if raspberry on , connected pins on rasberry?? allright? or shut shut down? thank you etnic wrote: hello, ask. can work breadboard (connecting sensors breadboard) if raspberry on , connected pins on rasberry?? allright? or shut shut down? thank you although don't have power down, idea work power off , check , recheck wiring before powering on. simple wiring error damage or destroy rpi. raspberrypi

Hyperlink to page outside site wont open

i have site link want link page outside site when place hyperlink , upload server , mouse on link shows me http://www.mysite.com/www.outsidepage.com. because www.outsidepage.com not in server display page not found. i have tried know, need on this. the link external file should include protocol, e.g., - <a href=" http://www.example.com''...> not - <a href="www.example.com''...> -- murray --- icq 71997575 adobe community expert (if *must* email me, don't laugh when so!) ================== http://www.projectseven.com/go - dw faqs, tutorials & resources http://www.dwfaq.com - dw faqs, tutorials & resources ================== "princelevel" <webforumsuser@macromedia.com> wrote in message news:fsfs0m$7bj$1@forums.macromedia.com... >i have site link want link page outside site when >i > place hyperlink , upload server , mouse on link shows > me > http://www.mysite.com/www.outsidepage.com. &g

HDMI not working anymore - Raspberry Pi Forums

hello ! first of im using rpi 2 , 2a power supply. received few days ago , worked fine on lg hdmi tv , on asus vh222d screen through vga/hdmi adaptor. finished project , working, no signal on of 2 screens... (the rpi still working because can still launch program) formatted sd card , reinstalled last version of raspbian , .. no more signal. tried "hdmi_safe=1" , of course on screen little resolution, lot of parasites , black screens. tried other parameters on config.txt best result can resolution parasited , blinks sometimes. hope can me google 'config_hdmi_boost' , try values higher default 4. raspberrypi

Maxim 7219 Eagle PCB & iTead files for Adafruit 0.56" 7 segment clock display's

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i love maxim 7219 chips...  amazing value money (5 euro's genuine chip) and love adafruit: great products , great support (i not supported them  ) for dcf77 radio clock project, need lot of 7 segment displays not find want. so made in eagle cad pcb suit requirements , fit adafruit 0.56" clock 7 segment displays https://www.adafruit.com/products/865 github: https://github.com/deruiter i want make pcb files available others best way that? [edit]    @joen: did not realize files small, can indeed attach them here..., thanks! pinout labels glue on maxim 7219: http://forum.arduino.cc/index.php/topic,231729.0.html the eagle cad 6 files , zip file send itead attached in zip file <maxim72197segmentboard.zip> below can't zip them , attach them here? i chips too, though chips pwm functionality lot more capable.  7219's available on ebay @ 'fell off truck' prices of less $1 usd each delivered. www.ebay.com/itm/25pcs-ic-max7219cng-max72

Foreign language file missing constants from english language file? - Joomla! Forum - community, help and support

hi, is possible have language constants being pulled english language file if don't exist in foreign language file used on website? some kind of if statement like: if(!_language_constant){ include_once $mosconfig_absolute_path.'/administrator/components/com_rsgallery2/language/' . $mosconfig_lang . '.php'; } this of course rediculous, possible? i guess easier add in said language.php file missing constant. Board index Joomla! Older Version Support Joomla! 1.0 Language - 1.0.x

Theoretical max RPM tachometer

hi! i have built tachometer using ir led , receiver. reflection of led on whatever being measured triggers interrupt via ir receiver. pretty sure works accurately, question rpm (or interupt per second) can expect reliable readings? this code: code: [select] #include <wire.h> #include <lcd.h> #include <liquidcrystal_i2c.h> #define i2c_addr    0x27 // <<----- add address here.  find i2c scanner #define backlight_pin     3 #define en_pin  2 #define rw_pin  1 #define rs_pin  0 #define d4_pin  4 #define d5_pin  5 #define d6_pin  6 #define d7_pin  7 liquidcrystal_i2c lcd(i2c_addr,en_pin,rw_pin,rs_pin,d4_pin,d5_pin,d6_pin,d7_pin); unsigned int passes = 0; unsigned long first = 0; unsigned long last = 0; unsigned long updatelcd = 0; float numblades = 2.0; void blade_pass(){   passes++;   if (passes == 1){     first = millis();   }   else if (passes >= 10){     last = millis();   } } void setup(){   serial.begin(115200);   lcd.begin (16,2);   lcd.setbackligh

Hyperlinking To Headings Within Topic

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i have few conceptual topics have subconcepts, create bulleted list of hyperlinks subtopics. right create html manually link headings. however, how can editor? in other words, how set editor recognizes h1/h2's valid targets? hi resume-writer i don't believe can accomplish using heading styles. instead, must use boomarks. have topic may find helpful. may view clicking here . cheers... rick More discussions in RoboHelp adobe

Zener diode voltage for Mega GPIO protection

got quick question. i'm wanting protect gpio pins of new mega, , planning build gpio protection board using zeners bleed off over-voltage. digikey doesn't have straight 5v thru-hole zeners; closest have either 4v7 or 5v1. i'm guessing better use 4v7 ones, cause issues? thanks! i'd been looking "absolute maximum" voltages atmega2560; on atmel's product page lists "i/o supply class" voltage of "1.8 5.5" - i'm looking for? ( http://www.atmel.com/devices/atmega2560.aspx?tab=parameters ) i found datasheet (the link on arduino product page dead btw.) lists "voltage on pin except reset" -.5 vcc+0.5. don't see listing vcc specifically, "maximum operating voltage" of 6v. so, mean gpio pins theoretically work voltage between -0.5 , +6.5v? or accept -0.5v +6v? sorry ignorance, i'm getting started of this, lot of terminology totally new me... Arduino For

pyserial wont connect to hc-06 bluetooth serial port - Raspberry Pi Forums

i have problem connecting hc-06 bluetooth serial port using pyserial. device setup , paired ok , can connect no problem using minicom or program wrote in c. when attempt connect using pyserial program reports has connected ok lights on hc-06 indicate has not connected , in fact when try write opened serial port nothing recieved on far end. have used same python script on ubuntu desktop machine same bluetooth dongle , works expected. have idea problem might . have updated raspberry pi , still have same problem. far have hacked solution python script calls c program wrote read port , captures output hardly ideal as update on have downloaded latest raspbian image 2015-02-16 , problem has gone away maybe old bug has been fixed raspberrypi

PID plus Joystick

hi guys please need help!!! i wondering how can control exampel balancing robot controlled pid algorythm joystick? the pid controll tryes balance robot , how can controll joystick? when tilt button on joystick should go streight , pid controll not try defuse tild? please thank much!! have got balancing part working ?  code ?  hardware ? Arduino Forum > Using Arduino > Programming Questions > PID plus Joystick arduino

Thread: How go get Brasero to recognize .wav files?

ubuntu 8.10 gnome desktop lightscribe , other (no name on drawer) dvd/cd burners. trying copy disk .wav files disk. brasero not recognize.wav files. says disk empty. plug-ins available this? 2oz framing hammer maybe?? have considered using program sound converter make .wav files .mp3 files? go add/remove select all available applications drop-down menu , scroll find sound converter , install. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] How go get Brasero to recognize .wav files? Ubuntu

Paramètre carte saberthoot pour joystick

bonjour, il me semble que j'avais déjà parlé de mon problème en 2013, dans un topic où je demandais de l'aide pour les programmes moteurs pour mon robot à quatre roues. mon projet ayant bien avancé, j'ai achevé cette grosse partie, il me reste maintenant à fignoler les programmes xbee émetteur et récepteur. ayant effectué le premier test ce matin, je me rend compte que le robot (branché à l'alimentation en 8v) ne réagi pas et les moteurs se mettent à tourner dans n'importe quel sens des que je l'alimente. je pense que cela pourrai provenir d'un mauvais paramétrage des switch de la carte moteur (saberthoot 2x25). actuellement le switch 4 est le seul à être en position "down" ce qui correspond à un mode mixte selon la doc de la carte .. etant donné que celle-ci est en anglais, je n'arrive pas à trouver un mode correspondant à mes attentes. c'est pour ça que je vous écris, en espérant  que quelqu'un s'y connait à ce sujet. me

Parsing through the individual digits of a double

hi, i've been working on project display gps location , i'm having trouble trying data in right format. the data retrived via    int latitude =  gps.latitude;  in format: 4042.6142 i wanting divide prints lcd in format: +40° 42.6142' i have tried: code: [select] string lat =gps.latitude; //// = 4042.6142       serial.print("+"); serial.print(lat[0]); serial.print(lat[1]);serial.print("\"");     for(int = 0; i< 7; i++){       serial.print(lat[i+2]);     }     serial.print("'");     but error:  conversion 'double' non-scalar type 'string' requested which gps library using? you state "the data retrived via    int latitude =  gps.latitude;  in format: 4042.6142" the type int cannot store number decimal places (i.e. "4042.6142") without truncating it. need use double try use character array instead , use strtok function parse string. try stay away string class past posts

Battery Supply & Screen For Portable Console - Raspberry Pi Forums

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hey guys. plan on making handheld ps1 on pi , i'm @ point need purchase screen , power supply make portable recommend powers supply has same form factor pi , has @ least 10,000mah please. recommend cheap , cheerful screen (probably 4 inches) connect (i connect through gpio save on space , other project ideas in future, if not possible do!) i'm using model b+ board. in advance! jeff hello high resolution 480x320 display of size 3.5 inch various options available at www.neosecsolutions.com regards tinylcd raspberrypi

HELP!! Calibration

hi! i'm new in using arduino programming. first, tried how calibrate 2.4"tft touchscreen shield in arduino uno r3 but, encounter error. googled error. saw same scenario. tried suggestions. still got same error. i opened example>utouch>calibration calibration this photo of error. wish can me.  =( that's last error in long string.  first error? and please, copy-and-paste, not take screenshot. Arduino Forum > Using Arduino > Programming Questions > HELP!! Calibration arduino

Arduino Mega no conecta PC

hola, tengo un arduino mega (para una impresora 3d) y no soy capaz de conectarlo un pc, no lo detecta, como si no conectase nada. si que se enciende la luz de encendido, pero nada más, probado con diferentes pcs y nada, no detecta el puerto . la primera vez que lo conecté funcionó perfectamente, lo detectó y se instalaron los drivers, ahora nada de nada, ¿estará muerto? ¿habrá alguna manera de revivirlo? gracias, un saludo. hola, probaste con otro cable?. Arduino Forum > International > Español > Hardware (Moderators: surbyte, Hector_A) > Arduino Mega no conecta PC arduino

Connect two I2C devices to Mega 2560

hello, i'm new in forum , had new project, need twi i2c devices, can connect them both @ same time arduino mega , use them simultaneously. and if possible how can realize it? the arduino mega 2560 has 5v i2c bus. you can connect number of i2c devices bus, long devices can handle 5v i2c bus. for example bmp085 sensor can handle 3.3v i2c bus. the i2c bus 'bus'. connect sda , scl together. in sketch (the software) can select device because every device has own i2c address on bus. run i2c_scanner see if wiring okay, scan devices on bus. http://playground.arduino.cc/main/i2cscanner Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Connect two I2C devices to Mega 2560 arduino

Major problems!!! Need help! Urgent! - Joomla! Forum - community, help and support

hi for reason, every time go components install menu, blank page error message: "internal server error, error script, check error log more information." i same error message when try edit module. i can't think might have done have caused this. last few days i've been working in jos_menu table , menus. what should do? appreciate on this.. hi, i start enabling error reporting in global configuration, , check apache/php error logs if have access it. might give more info on blank screen. regards robin Board index Joomla! Older Version Support Joomla! 1.0 Administration - 1.0.x

Bug? Impossible code to upload on MEGA 2560

today there strange problem. code not upload anymore. tried other board, same problem. tried come , problem persisted. then removed last code made , problem gone. i made short peice of code same. to clarify not need have ram connected run test. compile , upload should trick. code: [select] #include <spi.h> #include <spisram.h> /* header spiram.h copyright (c) 2010 arms22 (arms22 @ gmail.com) microchip 23x256 spi sram library arduino */ //the spi ram 8x128k in size #define csram 7 spisram myram(csram); // cs pin void setup() {  serial.begin(115200);  pinmode(csram, output);  spi.begin();  spi.setbitorder(msbfirst);  spi.setclockdivider(spi_clock_div2);  spi.setdatamode(spi_mode0);  //dangerous code!!!!!!!!!!!!!!!!! upload not work this  serial.print("testing ram :");  myram.write(0x1ffff,0);  myram.write(0x1ffff,85);  if(myram.read(0x1ffff)==85)  {    serial.println("ram ok!");  }  else  {    serial.println("ram fail!!!

Custom button class

hello, i creating button class, problem when add textfield, hand cursor doesn't show, i've tried mousechildren with no results. i want know if best way create custom button, only need 3 states , label on button, here's code: package { //import flash.display.displayobjectcontainer; import flash.display.sprite; import flash.display.simplebutton; import flash.display.loader; import flash.events.event; import flash.net.urlrequest; import flash.text.textfield; import flash.text.textformat; import flash.text.textfieldautosize; public class boton extends sprite { private var _boton:simplebutton; private var _etiqueta:sprite; private var home:object; private var formato:textformat; private var texto:textfield; private var mensaje:string; private var alineacion:string; private var textocreado:boolean = false; private var ancho:number; private var alto:number; public function boton(level:object, txt:string) { home = level; mensaje = txt; _etiqueta = n

Help with CFSwitch?

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i have query can dynamically sort based upon column of data select. however, i'd take sorting 1 step further if click column second or third time, switches between ascending , descending sort order. can't find example of online. help? there cfgrid. phil More discussions in Advanced Techniques adobe

Education Serial Number Cannot work on beta 3?

i have education serial number , working on flex builder 3 beta 2 untill told me &quot;beta expired&quot;. puzzled me flex builder still showed me builder expire in more 40 days. what in world mean? serial number expired? or beta 2 version of builder expired? , can when serial number not work in beta 3 version? problem have project uncompleted in workspace. thanks lot! hi, beta 2 timed set time out in january, no matter how many trial days left. please use beta 3 instead, posted last december, beware beta 3 won't recognize flex builder 2 serial number. i've sent beta 3 sn under separate cover. thanks, c. agruss flex builder team More discussions in Flex (Read Only) adobe

Thread: Error 18 Grub loading please wait

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just activated new unit has xp home. loaded lenny , asked question grub , mbr. dual boot. installed ubuntu went through entire installation, gave me time re boot message no question on grub , mbr. @ reboot @ error 18 please advise , posted texas.chef94 just activated new unit has xp home. loaded lenny , asked question grub , mbr. dual boot. installed ubuntu went through entire installation, gave me time re boot message no question on grub , mbr. @ reboot @ error 18 please advise , thanks http://members.iinet.net.au/~herman546/p15.html#18 error 18 when bios cannot access os has exceeded cylinder limit. limit depends on vintage of bios/computer. see above linked. before trying create boot partition, try install within limit first (see if installing within first 137gb works) luck. back-up. Forum

getting started with arduino nano

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hi, our names omry , ofec , new arduino thing we have arduino nano board(not sure if atp328 or 168 need ask lab) , need connect gyro , accelerometer through i2c bus , read signals can figure out words what(the sensor old 1 , datasheet no found). later connect rc receiver , microcontroller slave (pololu mini maestro) control 19 servo engines. do think possible? , if so, how can started? can have better @ nano board magnifier, microcontroller should have written on it. hope have atmega328, because has more memory. an old sensor i2c bus , no datasheet not possible. perhaps can make photo of , attach it. there labels on ? i don't know pololu mini maestro, read is ment usb bus. can controlled arduino ? i read asked questions it: http://forum.pololu.com/viewtopic.php?f=16&t=8054 the arduino nano can control 12 servo motors, , arduino mega board can 48. need power supply, since arduino provides control signal. http://arduino.cc/en/reference/servo get sta

Thread: AV Chat On Ubuntu

does know of chat vp chat or voodoo has av's hate them on windows. by av, assume mean audio , video; more commonly referred "video chat" or "voice , video". skype can voice , video, , can lot of flash-based services online tokbox. believe ekiga can voice , video well, , development version of empathy. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] AV Chat On Ubuntu Ubuntu

Interfacing Arduino with MATLAB

hi, i new using arduino , looking regarding using arduino matlab? for first project have built rpm tachometer using arduino , producing results via lcd screen. want use arduino tachometer send real time data via program. wondering if there chance data used , produced real time data using instance matlab?? sort of possible appreciated! wondering done via bluetooth, think can done usb connection via serial port?? thanks appreciated! Arduino Forum > Using Arduino > Interfacing w/ Software on the Computer > Interfacing Arduino with MATLAB arduino

I think i overvolted mi pi through the usb port - Raspberry Pi Forums

so started when accidentally got raspberrypi model a+ instead of b wanted able use more 1 usb port bought powered usb hub had cool feature had switches let turn on individual usb ports came without dc adapter , when went try , online couldn't find exact 1 bought break out board female usb micro b plug removed dc jack , soldered on dc jack was. connected powered usb hub 5v 1a wall charger , lit seemed fine, didn't smell burning plastic plugged in pi. flipped on 3 usb ports, 1 memory stick keyboard , last 1 usb wifi adapter nothing came on screen power led lit on pi touched around , felt cpu getting hot disconnected , panicked plugged in 20-30 seconds looked around , thought had soldered had 5v line connected d- (data) thin strand of solder , going pi im not sure if problem seems it pi wont make past rainbow screen i've read polyfuses don't know do christmas present , feel bad breaking :/ there way of getting back? appreciated thank in advance

SD card not reaching IDLE state

here's rough draft of code i'm working on store variables on sd card: code: [select] #include <sd.h> #include <string.h> #include <sdfile.cpp> sd2card card; sdvolume volume; sdfile root; /*         encoding of "thejohnson" must utf8!!!!!      */ void setup() {   serial.begin(9600);//baud = 9600 serial :)   serial.print(f("total ram available: "));   serial.println(freeram()); //this line can placed anywhere in code.                              //if number printed less 5% of total, we're doomed   //the following 2 lines necessary reason.   pinmode(10,output);   //digitalwrite(10,high);   //i have 10,000 v actuator tied pin 10... i'm gonna have fix library somehow   digitalwrite(a1,high);   digitalwrite(a0,low);     if (!card.init(spi_half_speed,a0)) //we're using pin a0 sd_ce, baby     serial.println(f("failure initialize card."));       if (!volume.init(&card)) //just making sure it's fat.     serial