Posts

Showing posts from March, 2012

Thread: Which YouTube users/channels do you subscribe to?

there content on youtube, watch? post description of each channel if can. http://www.youtube.com/user/jamesnintendonerd - angry video game nerd reviews bad games, more recent episodes have delayed release on youtube need go official sponsors view them, still on 40+ episodes of work. http://www.youtube.com/user/kipkay - bunch of hacks & mods everyday items, videos jokes/fake. http://www.youtube.com/user/foodwishes - awesome food recipes, clear instructions , guys actual chef (surprise). http://www.youtube.com/user/tedtalksdirector - various technology lectures/talks, mind blowing. http://www.youtube.com/user/todderman - recipes tell how create clones of fast-food items bigmac (not material still interesting) i haven't found , have tried. though have tv player, ostv, can set youtube channel , watch watch other tv, somehow youtube doesn't seem translate this. not saying youtube useless, not

SD Card Status Prüfer

hallo! ich möchte überprüfen ob im sd card shield eine card steckt oder nicht dafür habe ich folgenden code, welcher bereits funktioniert: code: [select] #include <spi.h> #include <sd.h> sd2card card; const int chipselect = 53; int led1 = 22; int led2 = 40; void setup() {     serial.begin(9600);     pinmode(led1,output);     pinmode(led2,output);   } void loop() {     if (!card.init(spi_half_speed, chipselect)) {     serial.println("false"); //karte draußen (dauert lange zum schalten von grün -> rot ???)     digitalwrite(led1,low);     digitalwrite(led2,high);   } else {     serial.println("true"); //karte drinnen (umschalten von grün zu rot dauert lange ??)     digitalwrite(led2,low);     digitalwrite(led1,high);   } } nur ist es komisch, dass wenn das programm von "karte drinnen" auf "karte draußen" springt lange braucht. ich sehe es den zwei leuchtdioden led1 (drinnen) led2 (draußen). der abstand beträgt ein paar sekun

Programming Arduino Pro Mini via FDTI board

i trying program arduino pro mini using usb fdti board china (ft232rl) (edited).  it seems go well, never finishes.  if try upload 'blink', following: code: [select] arduino: 1.6.9 (mac os x), board: "arduino pro or pro mini, atmega328 (5v, 16 mhz)" build options changed, rebuilding all sketch uses 926 bytes (3%) of program storage space. maximum 30,720 bytes. global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes local variables. maximum 2,048 bytes. /users/fed/library/arduino15/packages/arduino/tools/avrdude/6.0.1-arduino5/bin/avrdude -c/users/fed/library/arduino15/packages/arduino/tools/avrdude/6.0.1-arduino5/etc/avrdude.conf -v -patmega328p -carduino -p/dev/cu.usbserial-a50285bi -b57600 -d -uflash:w:/var/folders/lb/5zdjdm6153jcx_5nq32tt7gw0000gn/t/buildd5ae82e677127ac286f51de66781d807.tmp/blink.ino.hex:i avrdude: version 6.0.1, compiled on apr 14 2015 @ 16:30:25         copyright (c) 2000-2005 brian dean, http://www.bdmicro.com/       

Default network config for Raspbian Lite - Raspberry Pi Forums

hi, spent 4 hours trying start new raspberry pi. tried first headless no matter ssh connection refused (yes, did add ssh file on sd card)... so, connected screen , keyboard, , after digging while realized eth0 not given ipv4 address default (my router show me had served 1 pi, pi did not take account... searching bit found running code: select all sudo dhclient -4 -v eth0 pi ip address router saying had provided it... now, need understand how make sure persitent , suvives reboot. question : have painful? intentional basics not activated default anymore? thanks, welcome raspberry pi forums. question : have painful? intentional basics not activated default anymore? i'm user, , not speak raspberry pi foundation, don't think should painful. , doesn't match experience. model of rpi? specifically, download of raspbian lite? may not sound relevant, arrangements have powering rpi? raspberrypi

CS4's offset drop-down menus not tablet friendly

it's less annoying when using mouse, find 1 of changes interface quite unfriendly pen/tablet use. drop-down menus file, edit, image, , layer offset right of each menu item's live area. means having careful when moving cursor down list menu doesn't accidentally snap closed. remaining drop down menus flush right item's live area, don't present same problem. i killed annoying tabs feature , doesn't affect offset pull-downs. illustrator has same behavior, assume offset behavior consistenet through cs4 applications. nope. bridge cs4 doesn't have offset. nor acrobat pro. it's nice in era of multiple , large displays adobe's interface designers inspired try , free interface workspace. little interface design detail offset daily aggravation doesn't have benefit can discern. latest tablet drivers? you might need recalibrate tablet? look in it....as tablet (wacom intuos3) has no such issue. it interesting see if others have issue. More discussions

Gallery Extension with ordering facility? - Joomla! Forum - community, help and support

i'm hoping rework clients site www.milliepilkington.com using joomla, or similar. need implement password protection on individual albums has shot of clients. client log-in private album. need have ability end-user select image purchase , confirm size , number of copies like. information forwarded via email site-owner/administrator arrange prints , framing (similar http://www.amazingphotostore.co.uk/marcstanes/gallerymodule.php?ct=mgc&gl=3339&pg=1 ) any advice muchappreciated dmc thanks no advice.... here's me... this used in end , ticked boxes. http://gallery.menalto.com/ Board index Joomla! Older Version Support Joomla! 1.0 Extensions - 1.0.x

using 2 loops

Image
i have built project using 2 loops in single arduino bord.for example want blink led using 13 pin , pin 2,3,4,5 need pattern.how this.can provide code this. thank you it doesn't sound need 2 loops, believe it's job using multiplexing. perhaps try searching multiplexing leds more info. Arduino Forum > Using Arduino > Project Guidance > using 2 loops arduino

Wire.h conflict with VirtualWire, SoftwareSerial and RH_ASK.h

first of all, thank time reading this. it realy appreciated! i measure ph aquarium follwing board , arduino nano: http://rezaalihussain.blogspot.nl/2014/04/measuring-ph-using-dormant-labs-ph.html the sketch provided reza works fine on own 1 of libraries mentioned in titel used ph output goes "inf" main code provided reza: code: [select] #include <wire.h> #define phaddress 0x4d int roomtempi2caddress = b1001011; float volt4 = 0.95; float volt7 = 0.67; float calibrationtempc = 20; void setup() { } void loop() {   wire.begin(); //connects i2c   serial.begin(9600);   serial.print("avgmeasuredph-");   setroomtemperataureresolutionbits(12);//12 bits room temp resolution in celcius     int samplesize = 500;     double avgmeasuredph = 0;   double avgroomtempc = 0;   double avgphvolts = 0;   double avgroomtemperaturecompensatedmeasuredph = 0;     double tempadjusted4;     int x;   for(x=0;x< samplesize;x++)   {     double phvolt = getphvolts();      tempad

Waveform output on Due

hello all, i'm trying output custom waveform arduino due having issues. i'm trying simple simple waveform generator isn't intuitive , seems missing code (unless i'm mistaken). i want output single waveform i'm trying avoid dealing libraries , don't need adjust frequency. when try , run example code given in tutorial linked above, says dac0 wasn't declared in scope. happens when attempt declare it. can give me insight on how use dac0 , dac1 pins? thanks! just use analogwrite... code: [select]   pinmode(dac0, output);   analogwriteresolution(12);   analogwrite(dac0, a);[/a] if it's complaining dac0 isn't defined double-check have correct board selected on tools menu. note pinmode isn't strictly necessary analogwrite checks anyway. Arduino Forum > Products > Arduino Due (Moderator: fabioc84) >

meta info problem? - Joomla! Forum - community, help and support

why meta info not showing on search engines?  have updated in global configuration section, yet when site on google or yahoo default joomla description.  pulling from? while should this: "tk jewelry, art heart.  handmade custom jewelry in pacific northwest.  choose custom beaded necklaces, bracelets, or earrings, or submit custom order of own." it instead says this: "joomla - dynamic portal engine , content management system" my site located @ http://www.tkjewelry.com moving administion forum. Board index Joomla! Older Version Support Joomla! 1.0 Administration - 1.0.x

send and recive binary bit stream

helo.. for final year project want generate binary bit stream 12 bits (eg:- 0111 1010 0011) from 1 arduino , recevie binary data through arduino , store variable.. possibilites doing ? we trying poweline communication project. trasmitter need send 12 bit stream contains information reciver side 3 equipments. in 12 bit sream protocol, 1st 4 bits indicates starting of process process , 2nd 4bits address of quipments, , last 4 bit weather on/off of selected equipment. (something state machine) any idea how generate 0111 1010 0011 , read using arduino?? what suitabe built in functions generating , receving binary bit stream?(sorry kniwldge on funtions v. low) don/t want send strings or whole decimal number.. binary bit stream yes. start google search , then, if you're having problems, post code here , we'll see if can help. Arduino Forum > Using Arduino >

Most efficient board for multi accelerometer and to connect to RaspPi?

hi all, jumping in waters designing things. first thing want connect multiple accelrometers (~6-10) 1 of arduino's , send data remotely rasppi. planning use adxl345 accelerometers (could changed, if make life easier), , nrf24l01 wireless communication between arduino , rasppi. i new arduino , assuming effort able master arduino complexity. my question community: 1. arduino uno best option have project, or should consider other boards? smaller better, less power hungry option. 2. other electronics or components need? 3. link details of similar project great. any appreciated. best regards, gurubaba the uno best board beginner because software , add-ons work it. nano similar uno on  smaller board can't use arduino shields. i got nrf24s working tutorial i recommend using tmrh20 version of rf24 library - solves problems maniacbug version the pair of programs in this link may useful. ...r Arduino Forum

Out of frame help

<a href="http://www.pixentral.com/show.php?picture=156y3notj9hzf28iqdl9eetttgy8w70" /></a> <img alt="picture hosted pixentral" src="http://www.pixentral.com/hosted/156y3notj9hzf28iqdl9eetttgy8w70_thumb.jpg" border="0" /> <br />r there , easy out of frame tutorial out of frame? parent wanted photo done out of frame. did 1 couple of years ago , forgot how did it.this photo different , im not sure work out of frame.anyone info or ideas on how it, love have info. explain out of frame means. mean transparent background, or else? More discussions in Photoshop Windows (read only) adobe

How To Import A Module Within A Module? - Raspberry Pi Forums

so have been experimenting creating own module, come out (don't excited though camjam edukit 3), , have tried import time putting import time @ top of module script. however, when test script uses module error saying time not defined. module works (as have tested it) don't know how import time within module. know how fix problem? in advance, louisp you'll need share code decent answer on sounds you're missing import time line somewhere. raspberrypi

Ajuda com código para escrever em display

boa tarde, estou criando um programa que escreve algumas informações em um display de cristal líquido i2c. a questão é que não estou conseguindo escrever casas decimais no display da forma que quero. não vou colocar o código todo porque está muito grande, mas parte que importa é essas três quando faço desta forma o valor é escrito no display corretamente com 2 casas decimais, perfeito. code: [select] #define m_tensao 0.00001211146910945530 . . . tensao = (h_byte<<16)|(m_byte<<8)|(l_byte); . . . lcd.print(tensao*m_tensao); porém como preciso trabalhar com o valor final da variável "tensão", alterei o código da seguinte forma code: [select] #define m_tensao 0.00001211146910945530 . . . tensao = ((h_byte<<16)|(m_byte<<8)|(l_byte))*(m_tensao); . . . lcd.print(tensao); só que desta forma não exibe mais 2 casas decimais no display. se alguém puder me dar uma dica de como resolver isso agradeceria ajuda. isso é normal. verifique

CS4 GPU works fine in WinXP 64bit -with some tweaking

for several weeks unable cs4 gpu accelleration working under winxp 64 bit (not officially supported adobe). spent hours on phone ati , bit of time w adobe also. no sucess ati firegl v3600 works fine daz studio showing full textures in view window , decent , fast renders. afte gave , started building vista 64bit machine, saw post slim_w got gpu accelleration working fine expensive fl card. i had gone through installing latest drivers, running special adobe reg patching utility files etc. when checked ati, saw there brand new driver available. downloaded , installed, ran adobe utility , gpu accelleration works beautifully. read more here: http://forums.dpreview.com/forums/read.asp?forum=1004&message=30072969 anyone else using winxp 64bit might find info useful. dan More discussions in Photoshop Windows (read only) adobe

Sensore hall: cosa sbaglio?

Image
salve tutti, ho trovato un vecchio sensore hall e sto cercando di capire se funziona ancora.. ho usato questo schema, ma ho collegato il terzo pin ad a0, anzichè pin digitale 2... la resistenza che ho usato è 15kohm caricando lo sketch analogreadserial leggo numeri intorno 200-300 senza che abbiano alcun riscontro con il passaggio di un magnete davanti.. (p.s. un sensore così può andar bene per capire se in un filo passa corrente o no?) cosa sbaglio? grazie mille il circuito da utilizzare dipende dal tipo di sensore: ci sono sensori con uscita ttl od open collector ed altri con uscita analogica. la sigla del componente sarebbe utile...   Arduino Forum > International > Italiano > Generale (Moderator: leo72) > Sensore hall: cosa sbaglio? arduino

A simple IR Tx Rx system - Packet Errors

Image
hello. i have tried make own little ir transmitter attiny85 16mhz external crystal. i using nano tsop rx. i have various tsop packages...i lost may what. have following ones available (labels on of package):225 ,386,233,148,322 , have 41 in breadboard. they have green band (i assume 38khz) except 233 has brown/orange band. i using code here send bytes 0-255 in loop 10ms delay. my code uses high low period denote "1" , low low denote "0". this give rx "rest" not on saturate (as per data sheet). tsop41 i have burst 600us long @ 38khz giving ~23 cycles per burst. each burst followed @ least 600us low period. the datasheet says: "minimum burst length 6 cycles/burst" "after each burst of length gap time required of 6 70 cycles ≥ 10 cycles" "for bursts greater minimum gap time in data stream needed of 70 cycles > 1.2 x burst length" "maximum number of continuous short bursts/second 2000" i thought had satisfie

Multimeter

hello, has done ammeter using arduino measuring currents ~10 ma ~3 a and voltmeter measuring voltages 15 v. i know componets needed building project? i thinking using hall sensor current measuring don't have idea. those dc currents/voltages. quote from: simplethings on aug 07, 2016, 11:19 am hello, has done ammeter using arduino measuring currents ~10 ma ~3 a and voltmeter measuring voltages 15 v. i know componets needed building project? i thinking using hall sensor current measuring don't have idea. those dc currents/voltages. i have done similar , doing this. partlist depends on accuracy need , budget. Arduino Forum > Using Arduino > Project Guidance > Multimeter arduino

Thread: Drivers for Creative Sound Blaster 5.1 VX

hi, have got creative sound blaster 5.1 vx card on pci slot. when login ubuntu, irritating sound (similar old tv sound when not find channel). when play music or movie, there no sound. same works in windows. please me in searching drivers hardware or fix it. & regards, bhadresh i had similar yesterday. turned out volume muted. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [ubuntu] Drivers for Creative Sound Blaster 5.1 VX Ubuntu

Method needed to combine 50+ images with same background. Not a portrait.

hello, here want do. have taken 50 images of people walking in heavily trafficked area. want have people added 1 image. each person have full opacity. i started making image no 1 in scene using median blend mode layer stack remove people. worked fine. now, hoping there way create masks or knockouts of people in each of individual images somehow comparing them scene no people. way mask out or knock out areas different, i.e. people. stack images of people on top of 1 create complicated image showing volume of traffic. any suggestions appreciated. using cs3. best regards, seder difference blendmode. put people on clean bg, switch mode. flatten result, use adjustments make b/w. select all, insert custom channel or existing layer mask transparency. if photos shot under same lighting conditions, create action repeat steps. mylenium More discussions in Photoshop Windows (read only) adobe

Funziona tutto ma... instabilità esp

Image
ciao tutti , è da tanto che non scrivo .. torno ad approfittare della vostra preparazione .. dopo quasi 8 mesi dal primo contatto con il mondo di arduino sono riuscito realizzare quello che avevo in mente.. ovvero realizzare un "telecomando ir" remoto , ovvero via wifi. utilizzo : arduino uno, lettore scheda sd(nella quale sono presenti file txt con raw dei dispositivi da comandare), esp8266-01 per quanto riguarda il modulo wifi. funzionamento: chiamo da cellulare/browser questa pagina"192.168.1.218/00120000000000*" (l'ip del modulo esp /il comando che voglio passare ad arduino e l'asterisco finale per indicare la fine del comando), una volta ricevuta la richiesta esp stampa su browser "comando ricevuto" e stampa su seriale il comando ricevuto. sono riuscito far funzionare tutto(con non poca soddisfazione , e con tanto vostro aiuto ) . tuttavia c'è un problema di stabilità legato al modulo wifi (penso). quello che succede è che il mo

Can't Compile Anything on Arduino 1.6.9 using windows 10

hello! i'm new in using arduino sofware downloaded last month , working fine not until yesterday, when compile or verify sketches got error message of c:\program files (x86)\arduino\hardware\tools\avr/bin/avr-ar: unable rename 'core\core.a'; reason: permission denied i tried uninstall , reinstall got error message again. tried download version of arduino got error on again. i encountered problem when iupdated libraries , avr board of arduino 1.6.9 yesterday. i don't know do! can me? ps: searched solution tried turnoff anti-virus, restart computer , solution seen in internet nothing happens. badly need software because of our design project in school. quote from: alexes on aug 04, 2016, 02:49 pm i encountered problem when iupdated libraries , avr board of arduino 1.6.9 yesterday. updating libraries wouldn't cause problem there's possibility arduino avr boards update. try this: tools > board > boards manager wait downloads comp

Problem with my arrays

code: [select] void alarmtimes (){   int alarmhour[12]={0};   int alarmminute[12]={0};     if (dy==1){ //monday     alarmday=1;     alarmhour[12]={8,8,9,9,10,10,10,11,12,14,15,16};    alarmminute[12]={0,40,0,40,0,20,50,10,0,30,10,10};     }     else if (dy==2){ //tuesday       alarmday =2;    alarmhour[12]={7,7,8,9,9,10,10,11,11,13,16,17};    alarmminute[12]={0,40,20,0,45,12,13,0,55,0,0,10};       }   else if (dy==3){ //wednesday     alarmday = 3;     alarmhour[12] ={};     alarmminute[12]={};     }     else if(dy==4){ //thursday       alarmday = 4;     alarmhour[12] ={};     alarmminute[12]={};       }       else if(dy==5){ //friday         alarmday = 5;     alarmhour[12] ={};     alarmminute[12]={};         }         else if(dy==6){ //saturday           alarmday = 6;     alarmhour[12] ={};     alarmminute[12]={};           }           else{ }        if(dy == alarmday){         int km = 0;         if (alarmhour[km]==hr&&alarmminute[km]==alarmminute){           ring

Thread: Trying to learn

trying learn how write own source list welcome forums!! awesome way start making customized sources.list http://a2b-net.com/tips/sourceslistgenerator Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] Trying to learn Ubuntu

Thread: How to get WEBCAM SN9C105 to work under ubuntu?

i installed ubuntu 9.10 onto xp pc. webcam sn9c105 works fine under xp. however, not work under ubuntu. helps? tried download sn9c1xx. though have downloaded, however, when tried install it, got error message. try installing cheese Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] How to get WEBCAM SN9C105 to work under ubuntu? Ubuntu

Thread: Chromium si chrome no ?

Image
googleando encontré esto: http://bitelia.com/2009/12/google-ch...ware-malicioso no me parece que sea malware.... ustedes que opinan ? saludos. lo pase comunidad porque me parece que da para charlarlo cerveza o cafe de por medio Forum The Ubuntu Forum Community Other Discussion and Support Ubuntu LoCo Team Forums Americas LoCo Teams Argentina Team Comunidad Chromium si chrome no ? Ubuntu

Thread: Window borders

Image
i have both compiz , metacity installed under ubuntu 9.10. when metacity enabled, works fine. if enable compiz, though, lose window frames, can't move windows around, except google chrome, has own window frame. also, cairo-dock turns white box. finally, terminal windows turn white , unusable. compiz used usable, today stopped working, , don't know why. how can resolve this? moved , bumped Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Desktop Environments Window borders Ubuntu

Thread: MySQL server

i'm having trouble getting ubuntu machine mysql server. necessary activate package work? downloaded binary mysql site having trouble getting work. when tried activate package, ubuntu wanted me put original ubuntu disk in diskdrive impossible because installed web download. ideas? thanks, doug check /etc/apt/sources.lst , sure comment (#) out cd. then: code: sudo apt-get update code: sudo apt-get install mysql-server mysql-client Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] MySQL server Ubuntu

Burning a different bootloader...prepareing "Arduino as ISP" madness

Image
hi, the final target of experimenting flash tsb bootloader 1 of my arduino pro minis. since have no real isp, flashed pro mini (8mhz crystal, 3.3v atmega 328p(!)) "arduino isp" sketch. another pro mini (8mhz ceramic resonator, 3.3v atmega 328(!)) connected follows first one: "isp"      programmed d10 <=> rst d11 <=> d11 d12 <=> d12 d13 <=> d13 vcc <=> vcc gnd <=>gnd the "isp" furthermore connected via ftdi usbtoserial adapter linux pc. the adapter working fine...i flashed "arduino isp" it. before doing "the real thing" (read: more dangerous job) tried flash simple sketch via isp onto target: but git message: avrdude: version 6.0.1, compiled on apr 14 2015 @ 19:04:16          copyright (c) 2000-2005 brian dean, http://www.bdmicro.com/          copyright (c) 2007-2009 joerg wunsch          system wide configuration file "/usr/local/arduino-1.6.9/hardware/tools/avr/etc/avrdude.conf"  

Thread: Pulseaudio reinstall doesn't detect external sound card

Image
hello i'm having trouble sb live! external audio device. worked until yesterday, used terminal command "sudo apt uninstall pulseaudio" in attempt fix wine sound problems. wine audio problem won't go away- instead kept giving me message whenever tried configure audio in application running in wine: "setting related direct sound has been modified. setting valid after rebooting computer". have rebooted pc couple of time problem remained. hence reinstalled pulse audio , after reboot, sb live! external audio device wasn't working. show in "sound preferences" panel device isn't here anymore. nice, after uninstall something, do: code: sudo apt-get clean && sudo apt-get autoremove then reinstall pulseaudio. Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Multimedia Software [u

JPG attachment snafu reply from OP

i blissfully unaware post had become hot, , controversial, topic on forum: http://www.adobeforums.com/webx/.59b4c000/2 i invited input regarding file encoding, , thought info ken vogel provided excellent , apropos. it's unfortunate conversation became argument , got killed. wish these forums weren't that. forums unbelievably helpful, go south petty insults. anyway, comments. ken, i, one, appreciate research , input. ok, every should review marshall mcluhan book, the medium message . compared email & postings, tv close absolute zero. More discussions in Photoshop Macintosh (read only) adobe

Erstellng einer Webseite - Joomla! Forum - community, help and support

Image
hallo liebe gemeinde, ich möchte für meine tätigkeit als beraterin eine webseite erstellen lassen. nach gesprächen mit bekannten wurde mir das system joomla empfohlen. ich habe mich belesen und beraten lassen. dieses system möchte ich als grundgerüst für diese weseite verwenden. nachfolgend möchte ich meine vorstellungen schildern. dieser internetauftritt sollte vom layout das der firma (für die ich hauptsächlich tätig bin) angepasst werden. ich möchte inhalte selber pflegen und verwalten können. zunächst bräuchte ich (sofern dies geleistet werden kann) einen technischen support. der internetauftritt sollte unbedingt ein shopsystem beinhalten. inhaltlich kann ich noch keine genauen angaben machen ... aber es wird im laufe der zeit eine umfangreiche webseite daraus entstehen sollen. wen jemand interesse hat, dann sollte er sich bei mir melden  eigentlich würde ich dies technisch vielleicht sogar selbst auf die beine stellen können - aber derzeit habe ich eine kleine prinzessin zu versor

Supplying VRef from IO pin output?

hi all, newb here. my initial project simple ohm meter. it's left me how achieve this, there seem several approaches. decided on simple voltage divider system. so essentially, in classic voltage divider equation vo = (vi * r2) / (r1 + r2) the equation rearranged isolate want : r2 = (vo * r1) / (vi - vo) where vi supply voltage of 5v, vo voltage detected @ junction of r1 , r2 adc port , r1 known resistance. so in code i'd doing this: code: [select] float vo = (float)analogread(a0) / 204.8; float r2 = (vo * 1000.0) / (5.0 - vo); but assuming supply voltage 5. plus current voltage divider supplied io pin in output mode may different supply voltage when under small load of divider. now seems me long vref , vi same, reading @ adc port not change means don't have assume voltage. can take absolute port readings. code: [select] float r2 = ( 1024.0 * 1000.0 ) / (1024.0 - (float)analogread(a0) ); so that's i'm thinking. connect voltage divider d2 , put d2 output mod

DC Motor running too slow

Image
hi, new arduino , coding. attempting project need dc motor run , can vary speed. using arduino mega 256 l298n bridge. motor use has following specs. voltage: 12 volt dc no load rpm: 5,310 (+/- 10%) free current: 2.7 amps maximum power: 337 watts (at 2655 rpm, 172 oz-in, , 68 amps) stall torque: 2.42 n-m, or 343.4 oz-in stall current: 133 amps http://www.andymark.com/motor-p/am-0255aus.htm i use 12 volt battery bought amazon. https://www.amazon.com/gp/aw/d/b0075vq9os/ref=ya_aw_od_pi?ie=utf8&psc=1 when connect motor directly battery runs high rpm, when connect l298n, speed of 255 arduino motor runs slow , stalls , stops. keeps winning. tried changing speed through arduino, whining sound change, speed doesnt. question other parameter should need control/change increase motor speed. thanks in advance help!! regards, sid one key thing missing here, how's overything connected? where's schematic? btw, l298n able drive 2a per channel. can parallel bot

Save for Web CS4, alpha channel missing.

i can't find, in cs4 save web dialog box, quality settings alpha channel, text layers , vectors protection. any suggestion? giuseppe giuseppe, profile says adobe certified instructor, must misunderstanding post. save web designed produce smallest possible file uploading web page. not going retain layers, vectors or alpha channels in gif or jpeg file. trying do? why using save web? More discussions in Photoshop Macintosh (read only) adobe

push button

i know it's simple , new arduino . i'm looking code , press button once turns on led , pressed second time same button turning off led quote from: artour_kambel on jul 07, 2016, 12:23 pm i know it's simple , new arduino . i'm looking code , press button once turns on led , pressed second time same button turning off led if new arduino, check out example sketches in  arduino-ide, ide main menu select: - file - examples - 02.digital - statechangedetection can learn statechangedetection example, help? Arduino Forum > Using Arduino > Project Guidance > push button arduino

Pixelated Thumbnails

hello, i'm using photoshop 6 on desktop imac g3 os 10.3.9 for reason thumbnails of pictures worked on , saved in photoshop pixelated (well - just plain degraded, really) compared acceptable thumbnail represents original picture file. (i didn't have problem when using same photoshop 6 on earlier desktop os 8.6 years ago). problem's same whether saving jpg psd or tif files. editing , saving in iphoto or other application produces fine thumbnails. can help? thanks, keith keith, as you're aware, ps6 ancient (8-year-old) version of photoshop, combined old operating system. this, can best remembered, may rather sparse now. >i didn't have problem when using same photoshop 6 on earlier desktop os 8.6 years ago one thing remember ps6 released before , never designed use under later, radically different os, mac os 10.3.9, , there may not solution. about thing can suggest existing setup if haven't updated ps 6.0.1, should that. can still download update at:

while statement

i copy/paste following code , compiler tells me 'stanby' not declared in scope i run original code copied , it's ok (?) can tell me what's happening... my code:   void loop() {      while (pind = 0) {       stanby(); }   void stanby() {     portb = 0;       } you should post of code. didn't include 'setup()' function. in you've shown, left closing curly bracket off 'loop()' function. if add empty 'setup()', plus add missing } @ end of 'loop()', code compiles fine. edit: 1 more thing spotted. this:- code: [select] while (pind = 0) should this:- code: [select] while (pind == 0) Arduino Forum > Using Arduino > Programming Questions > while statement arduino

Output USB MIDI data to GPIO - Raspberry Pi Forums

i've bought first rpi , want use take midi input via usb , output @ least part of midi data 1 of gpio pins. specifically, i'd capture patch name information , output lcd. i'm using qjackqtl take in usb midi , can see kmidimon data being received. best approach outputting data? unfortunately, after bit of googling, there doesn't seem clear guide getting small cheap 2x16 lcd displays work on pi (a lot of posts old - lots of people having problems ) might take effort there maybe come along , point out working solution raspberrypi

32-bit CS4 and Memory Under Vista x64

hello, i wondering if 32-bit version of photoshop cs4 can access more 4 gb of memory if it's running under vista x64. i'm not sure 4 gb limitation enters picture--if it's operating system or application itself. i've tried use cs4 x64 as possible, there aren't lot of plug-ins available yet, necessitating use of 32-bit version @ times. thanks, brad steinagel no, 32 bit application can address 4 gig of ram. additional ram in system can used os disk caching, performance bit. 4 gig enters picture because maximum value/memory address representable in 32 bit integers/pointers. More discussions in Photoshop Windows (read only) adobe

Cross Compillers / ARM / Armhf - Raspberry Pi Forums

hi, new on raspberry thing , programming in linux dont rough me. trying install gcc-arm-linux-gnueabi packages on raspberry pi 2 model b. lsb_release -a command shows : raspbian / gnu/ linux 8 (jessie) however, can not install it, says depends packages : gcc-4.9-arm-linux-gnueabi not installable can explain me why , how can fix that? nooby know trying.... many thanks! you can't install gcc-arm-linux-gnueabihf on pi. package isn't supported it. pointless anyway. cross-compiling compiling software on 1 architecture another. package designed compile software on x86 (and few other) systems, can run on armhf of pi. if want compile pi use native compiler. instructions following? raspberrypi

Thread: Ubuntu 9.10 - Help me to obtain 5.1 channel Audio

Image
hi, have installed ubuntu 9.10 , working great without issues. tried play 5.1 audio, 2 speakers working. me 5.1 dolby output . laptop acer 5738g realtek card. give me related links if can. thanks!!! no reply yet!!! Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Multimedia Software [ubuntu] Ubuntu 9.10 - Help me to obtain 5.1 channel Audio Ubuntu

Thread: Solid, cheap PCI TV Tuner.

im interested in setting computer watch tv, not record it. main reason tv in living room of apartment , tv watch in room , <$50(preferably $20lol) tv tuner card consolidate space opposed bringing tv , cheaper buying new tv. im running ubuntu studio 9.10 on dell dimension 4600 pentium 4 2.8 ghz processor, 1 gb ram, , nvidia geforce 7600gs 512mb vram. college budget, main concern cheap, not entirely necessary , ive managed fine without tv far, it, since lost starting , roommates hate , might not want deal them while watching it. tuner needs pci, guess usb work i've seen pci cheaper , prefer internal. ntsc must because basic cable, atsc because there few digital channels get. composite or s-video input maybe connect ps2 or snes, thats not must. i've found far researching, hauppauge seem work linux, dv848 or dv878 chipset. ive found mentions of people getting them less $20 cant find less $50 @ newegg or micro center. bottom line cheap less $50, pref