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Showing posts from May, 2013

pdf file from results page

using microsoft access database. using dreamweaver 8. database table has 4 columns, 1 pdf file. set results page in asp. search page produces results wanted need link open pdf file. best way that? code or in database set itself? using web assist data assist build pages. thanks just create <a href filename , become active link. -- paul whitham certified dreamweaver mx2004 professional adobe community expert - dreamweaver valleybiz internet design www.valleybiz.net "jim balthrop" <webforumsuser@macromedia.com> wrote in message news:en9vvn$44c$1@forums.macromedia.com... > using microsoft access database. using dreamweaver 8. database table > has 4 > columns, 1 pdf file. set results page in asp. search page > produces results wanted need link open pdf file. > > best way that? code or in database set itself? using > web > assist data assist build pages. > > > > <td class="wadaresultstablecell"><a > href...

Arduino UNO rev3 connection problems

hey, been searching trough these forums , cannot find solution problem. i've seen people posting same problem, without getting problem solved. so try again. when try program uno error: stk500_getsync(): not in sync: resp=0x00 all drivers should installed correctly since tried reinstall them few times. one thing might worth mentioning unorev3 instead of uno driver in device manager(saw guide had uno instead of rev3) i'm using windows 7 x64. i saw pictures burning bootloader , wonder, possible without cables , stuff? // mikael johansson did try troubleshooting guide?  http://arduino.cc/en/guide/troubleshooting Arduino Forum > Using Arduino > Installation & Troubleshooting > Arduino UNO rev3 connection problems arduino

Query about odd behaviour of strspn() function

i'm trying parse input data presented in form b11=<digits>. "b11" parameter name. to ensure i'm looking @ valid input parameter, i'm testing input (a char array in rxbuffer[]) follows: if (strspn(rxbuffer,"b11="))==4) but i'm getting unpredictable results. below sample input data, prefaced corresponding return value of strspn(): 0 - fred (ok) 4 - b11=abc (ok) 4 - b11=012 (ok) 5 - b11=123 (eh ?) 4 - b11=234 (ok) 6 - b11=1123 (eh ?) 7 - b11=11123 (eh ?) it seems if string starts digit '1', goes wrong. ideas ? for reference, test code running on arduino mega 2560 board. cheers, don the strspn() function returns length of initial portion of str1 consists of characters part of str2. return value not length of str2, if str2 contained in str1. so, appears output seeing reasonable. the strspn() function not want using. want use strtok(), "=" delimiter string, "b11" portion. compare ...

Using Vin pin safely

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hi, i want power arduino safely vin , gnd using 9v battery. cannot use 2.1 mm power plug or 9v adapter jack since don't have following parts: http://arduino.cc/playground/uploads/learning/9v_tut_1.jpg. don't have time buy that. my concern want feed arduino board(with wifi shield on it) using vin pin 9v battery. have read in forums here wiring vin , gnd in wrong way risky , can kill board voltage regulator. possible prevent using diode @ end of gnd pin? any ideas? you right, wiring vin wrong can kill board. have 2 wires -- it's hard wrong! if have 9v battery clip red wire , black wire. hook red wire vin, black wire gnd, , don't wrong if want diode, hook in series red wire (anode: red wire, cathode: vin pin). -- the rugged audio shield : line in, mic in, headphone out, microsd socket, potentiometer, play/record wav files Arduino Forum > Using Arduino ...

How to read a port?!

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how read entire port (8 bits) , store value? for example, want read port since using mega , think using port in parallel pins 22-29, 22 being lsb. cannot find on google! has google failed me? or have failed myself "direct port manipulation" Arduino Forum > Using Arduino > Programming Questions > How to read a port?! arduino

Embedded program paste to IDE has problems.

my project @ http://github.com/tz1/bluev i'm working on interface radar detector.  works on mega series, ran strange problem. if use makefile (malefile.ardumega) compile bluevmega.c, , manually use avrdude, works fine.  if paste ide, compiles , partially works, input capture timing off - using icp4 (and oc interrupts) create software uart missing many edges when use ide.  suspect there other interrupts running interfere or perhaps optimization very, low, or subtle compiler setting playing signed v.s. unsigned games, or 1 of subroutines being superseded. i figure out if saw actual build commands , generated files.  know adding , altering things, there no way can find recover actual steps, e.g. recreate script file process or see parameters avr-gcc , alteredprogram.c file may have changed.  these available anywhere?  i'm surprised either not documented @ or hard find, both going on if wanted commands manually , lack of build logs or script...

Correct Relay Selection?

hey forum, i'm setting 20 leds in series , powering circuit using 12v battery. attempting use mega2560 signal relay control lights turning on , off i'm not sure power specs need when selecting correct relay. each led has vdrop of 2.4v , wired in series 40 ohm 5w resistor. thanks help! quote each led has vdrop of 2.4v , wired in series 40 ohm 5w resistor. did measure voltage single led 40 ohm resistor on 12v battery? if each led drops 2.4v 20 of them in series 48v. tell more. answer question might mosfet, no need relay. Arduino Forum > Using Arduino > General Electronics > Correct Relay Selection? arduino

Sending Variables!

hi, first post , i'm spanish, sorry english! - send "webduino" url this:  http://192.168.1.150/web/intread?i=contador - arduino request value of int. - use part of program , works correctly. int contador int estado ... (value char, , word after "=", on case contador)             if (strcmp(value,"contador") == 0)             {             int val = contador;             server.print(val);             }             else if (strcmp(value,"estado") == 0)             {             int val = estado;             server.print(val);             } ... the program returns via web integer (value of "contador") now want compare the...

eWeather - Can't enter Location Code - Joomla! Forum - community, help and support

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hi i've installed eweather, registered , think figured out id , key etc in code sent me. but, when in configuration window, can't enter "location code" won't let me click , type or paste in it. hitting tab key move forward each field box doesn't work either. it's if field box somehow "stuck". has suggestions please? tia in case else should experience same problem, ventured developer's forum, in german, , found reply english questions too  , got following helpful reply patch being needed: http://www.mambobaer.de/component/optio ... /id,68/#68 (i hope it's ok post link here, benefit of others may need reply same problem had?) Board index Joomla! Older Version Support Joomla! 1.0 Extensions - 1.0.x Components

Formato pagina de inicio - Joomla! Forum - community, help and support

hola! tengo un problema q no puedo solucionarlo. en la pagina de inicio tenia configurado para q apareciesen solo 2 noticias, ahora metido otra mas y al meter esta tercera, 2 de las noticias me aparecen una al lado de la otra. como las 2 tienen imagenes... la pagina se ancha mas de lo q se puede previsualizar y para verlo todo tengo q mover la barra deslizamiento. quiero q me aparezcan las noticias una bajo la otra y no al lado. como puedo hacer esto? espero q me hayan entendido, perdonarme perdonarme por lo paquete q soy. saludos http://forum.joomla.org/index.php/topic,32335.0.html consejo. muchas dudas las puedes solucionar en la seccion de tutoriales, o con un simple search. saludos Board index Joomla! International Language Support International Zone Spanish Forum Versiones de Joomla! obsoletas Joomla! 1.5

DOA Pi's and the Resolution - Raspberry Pi Forums

as has been mentioned here, pi's appear arrive dead. have 5 working pi's, used existing test platforms , production "parts" testing, , first 2 next 2 pi's not produce boot behavior or video beyond quick, single flash upon applying power. swapped many working sd's, power sources, network cables etc, peripherals not issue. turned out december 2012 wheezy image not work on these new pi's. current (as of today july 2013) work in both new , old pi's. cost me lot of time fiddling, have been valuable me had pi's arrived note mentioning older os's no longer worked new revision. solved. final thought have plan better failure not able transfer sd 1 of current pi's new pi.........this may solved hereafter through update etc....so hope becomes reality. another person fallen foul of rpi's second-best-kept secret. suggested rpis should coming advisory label stuck them. see final sentence of http://www.raspberrypi.org/phpbb3/viewt ......

IGATE APRS no Rapsberry Pi B - Raspberry Pi Forums

sou radioamador e pretendo montar um igate aprs num rspberry. tenho internet cabo 24 horas por dia e pretendo usar no meu igate. alguém já montou um igate no raspberry? não tenho conhecimentos de linux e se alguem já fez e se puder me ajudar fico grato. att, hugo sérgio - py4bie. olá amigo. não conheço muito de linux mas aqui nesse link, http://www.dxzone.com/cgi-bin/dir/jump2.cgi?id=27613 , tem uma matéria sobre aprs mas para o raspbberry tem o pigate. já é um começo. 73de iz8hhz/py6 raspberrypi

Joomla! Forum - community, help and support - Login

the board requires registered , logged in view forum. username: password: i forgot password resend activation email remember me hide online status session   register in order login must registered. registering takes few moments gives increased capabilities. board administrator may grant additional permissions registered users. before register please ensure familiar our terms of use , related policies. please ensure read forum rules navigate around board. terms of use | privacy policy register Board index

Datafile.print: Print string problem

dear, i'am making test station detection of crash. getting al data, use sd-slot on wireless shield. @ moment have working program, store mine data putting every variable whit datafile.print on sd card. (see original program). void loop 40 ms , "datafile.print" need 30ms. moment long. original program: code: [select]  file datafile = sd.open(filename,file_write);         // datafile word geopend en de volgende variabelen worden er in weg geschreven.  if (datafile){   datafile.print(sensor1reading);   datafile.print(",");   datafile.print(volt);   datafile.print(",");   datafile.print(afstand);   datafile.print(",");   datafile.print(acceleratiefactor);   datafile.print(",");   datafile.print(led1state);   datafile.print(",");   datafile.print(led2state);   datafile.print(",");   datafile.print(se...

Interfacing with Paradox Spectra Security Systems

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hello, has tried decode paradox spectra security systems serial interface? plan activity reports via spectra's serial interface jeenode. connected jeenode spretra's serial interface , managed transfer serial data packets jeelink. need decode serial communication...  i want know how too Arduino Forum > Topics > Device Hacking > Interfacing with Paradox Spectra Security Systems arduino

Shutdown/data connection loss during RSync operation.... - Raspberry Pi Forums

what happens data if while rsync operation, there power outage or loss in data connection? data corrupted? have raspi @ home configured nas server. have raspi @ office. want office raspi serve mirror of home raspi (the home raspi should rule if there differences, make office raspi match it). intention has been create cron job on office raspi connects via ssh home raspi , rsync. , assuming data not corrupted, there way resume cron/rsync operation after reboot/reconnect? tia! rsync designed situation connections can lost during transfers. restart rsync , work out still needs transferred. raspberrypi

good motion detection - Raspberry Pi Forums

am reasonably smug have set little home security setup works well. other mjpeg streaming thread helped me sort it. have camera streaming in time lapse mode ram drive. have pir connected gpio. when movement detected pir pi grabs several frames camera , uses curl upload them rails application hosted on heroku. tried motion while ago usb cam frankly low res, fiddly setup , many false positives feel pir on gpio absolutely way detect movement. how know when raspistill updated , in update? lose -t 999999 hack if poss. improve system many cams. secret sauce here reliability seems hard wired ethernet reliable internet connection (i use power line). wifi unreliable .. more convenient! tried wifi , battery pack! cool. i'm having luck 'dozencrows' version of motion mentioned here: http://www.raspberrypi.org/phpbb3/viewt ... 25#p357591 have not tweaked motion-detection settings in config file comes in .tar.gz file, , have found works fine in (indoor) situation. after few da...

Thread: Problem with display

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hello everybody... i'm tom, i'm begginer in ubuntu, yes use never gone in deep of it. so... have big problem: first it's maybe more "user friendly" give details did. installed ubuntu studio 9.4 64bit (amd64) config athlon 3200+ 64bit geforce 7300gs 2gb of ram after installation of ubuntu studio, start, have grub can select first line (default boot) have beautiful screen ubuntu studio can see load something then, nothing screen come green strange colour , so should start use ubuntu studio? think it's incompatible graphic card? think dual screen can problem? please me , sorry bad english nobody know? please me .... Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Installation & Upgrades [ubuntu] Problem with display Ubuntu

Possible php.ini screw-up? - Joomla! Forum - community, help and support

hi, i have 2 servers different hosting comanies, shared hosting supports joomla no problems. second virtual server , have access configuration via plesk. for reason virtual server doesnt play installation of templates, modules etc. thinking there different between php confirg of each server, again wrong. i've looked through php.ini each server there many differences tell whats wrong. don't have admin access shared server cannot figure out should , shouldn't have. if problem appreciated. issue: installation of templates: unable create directory '/var/www/vhosts/sitename.com/httpdocs/media/install_442bb7ba9e59d/template_name/'unable create path /var/www/vhosts/sitename.com/httpdocs/media/install_442bb7ba9e59d/template_name/ for modules etc installation file not found. i've chmod directories , directories should accessable are, big question. php issue, server issue or plain being stupid? thanks in advance. please read thread concerning file ownership: http://foru...

Joomla! Forum - community, help and support - Login

the board requires registered , logged in view forum. username: password: i forgot password resend activation email remember me hide online status session   register in order login must registered. registering takes few moments gives increased capabilities. board administrator may grant additional permissions registered users. before register please ensure familiar our terms of use , related policies. please ensure read forum rules navigate around board. terms of use | privacy policy register Board index

TTL serial communications

i have motorized telescope mount want interface arduino mega 2560.   at first thought had rs232 port, bought appropriate shield.  turns out has ttl communication.  for second, thought of building rs232 ttl converter. realized hook 1 of arduino transmit pins scope mount's receive pins, hook arduino's receive pin scope mount's send pins, , tie grounds together.  is there flaw logic? how can sure voltage levels compatible?  what baud rate? thanks in advance! quote how can sure voltage levels compatible? with multimeter. quote what baud rate? rtfm? Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > TTL serial communications arduino

Problema contrasto LCD

mi trovo ad alimentare un display lcd hd44780 con una tensione variabile tra 5v e 4 volts o meno (+5 da un lm7805, oppure da batterie nimh 4.8v, che naturalmente si scaricano e la tensione va giu), ed il contrasto o lo regolo per 5 volts, oppure per tensioni inferiori....ma in questo modo è spesso poco leggibile! come posso fare per ottenere una regolazione piu o meno costante? grazie! io ho scoperto che in realtà il contrasto è regolabile con un trimmer usato come reostato, cioè una resistenza variabile tra il pin del contrasto e massa; in pratica collego il centrale del trimmer sul pin del display ed un dei laterali del trimmer su gnd; l'altro capo lo lascio libero, non lo collego all'alimentazione. prova così. Arduino Forum > International > Italiano > Generale (Moderator: leo72) > ...

Use data on SD card for controlling a servomotor

i retrieve data recorded on sd card using microsd shield (i use sdfat library ). these data in fact numbers between 0 , 1024 obtained sensor. want them , controlling servomotor, yet can't it. i think i'm stuck because data on sd card automatically of type char, , servomotor request type int. do have idea me ? thank ! quote do have idea me ? post code have reading data sd card. look @ documentation atoi(). Arduino Forum > Using Arduino > Storage > Use data on SD card for controlling a servomotor arduino

Access Problem at Joomla's new installation - Joomla! Forum - community, help and support

hi, if have installed joomla , encounted access problem @ first ever attemp open joomla, here temperary solution. threat http://forum.joomla.org/index.php/topic,46828.0.html . thanks. i can suggest worked me: disable .htaccess file removing period front of (using whatever ftp program) then should have access site (or @ least admin page can disable clean urls, if need to) make modifications necessary htaccess file, reverse process re-enable hope suggestions out , don't mess up. vince although still don't know how to  "make modifications necessary htaccess file", want thank vince post has guided me gain access. there other posts in forum have touched same problem leave no direct answers can use. hope can point out how modify htaccess file after gaining access. thanks. did use default .htaccess comes joomla (this isn't activated default), or there 1 in place? Board index Joomla! Older Version Support Joomla! 1.0 ...

Servo as a door lock, How can I ignore a button until later in the program?

hi everyone! i working on keepsake box uses mini servo lock door (minimum security more prop proposal) the sketch have created works in general sense, need little guidance.   button 2 (which closed when door closed , returns servo to the locked position) depressed when circuit powered (because the door closed @ beginning of cycle) , result, keeps the arduino responding button 1 (which high signal from source external arduino) opens lock. want to cycle locked / unlocked leds using pwm not sure park additional code.  i include sketch, in @ least finding the answer awesome. thanks!  george quote // dac box servo program rev4 // by: george suprenant // arduino community // 2012 #include < servo .h> servo myservo;                 // create servo object control servo   int pos = 20;                   // variable store 1st servo position locked int pos1 = 120;   ...

Thread: To Our Friends in Davao - Pwede Pong Magtanong?

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hello po sa mga taga davao. may tanong lang po ako. know davao balwarte of rodrigo duterte, lot of mangoes , pomelo come davao, have shirt eagle , word davao. aside that, wala na po akong ibang alam tungkol sa davao. kaya gusto ko po sana itanong - bakit ang daming mga taga davao na nakakaalam tungkol sa open source? marami pong mga sikat na taga davao na open source bloggers , na curious lang ako kasi - bakit hindi cebu or baguio or dagupan or ____? parang nakikita ko po kasi ang davao special case in terms of knowledge open source. 1. maganda @ vigorous po ba ang ict program ng mga educational institutions niyo? 2. suportado po ba kayo ng government? 3. sino po ang nagpapalaganap ng open source diyan? 4. may mga open source companies po ba diyan? naitanong ko lang po kasi nakikita ko po yung trend. @ pwede siguro nating ma-adopt para sa ibang lugar sa ating bansa para i-promote ang open source. maraming salamat. ...

USBtinyISP will program bootloader but not sketch

hi, i'm trying use spark fun pocket programmer, same usbtinyisp program sketch. program bootloader fine through arduino tools menu. not program sketch. i'm using blink example. , arduino version 22. followed instruction on http://arduino.cc/en/hacking/programmer. changed preferences.txt : upload.using=usbtinyisp i folloing error: code: [select] binary sketch size: 1018 bytes (of 30720 byte maximum) java.lang.nullpointerexception at processing.app.debug.avrdudeuploader.getprogrammercommands(avrdudeuploader.java:106) at processing.app.debug.avrdudeuploader.uploadusingpreferences(avrdudeuploader.java:68) at processing.app.sketch.upload(sketch.java:1603) at processing.app.sketch.exportapplet(sketch.java:1568) at processing.app.sketch.exportapplet(sketch.java:1524) at processing.app.editor$defaultexporthandler.run(editor.java:2293) at java.lang.thread.run(thread.java:619) i have tried updating java version on pc. i have tried reinstalling arduino 22 i have t...

Thread: Can't boot back into vista??

hi i'm noob, bear me. other day thought cool install ubuntu linux on vista computer. partitioned hard drive , booted linux dvd had. followed on screen instructions install ubuntu. im positive vista partition there don't know how boot it. computer turns on goes straight ubuntu. tried change bios , thing change under boot hardrive , not specific partitions. how go vista? run these commands in terminal , post output here. code: sudo fdisk -l cat /boot/grub/menu.lst Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Can't boot back into vista?? Ubuntu

PVII drop-down menu won't work

i have drop-down menus on navigation bar, , work on pages not others. created them using template each page has exact same code navigation. can't figure out what's going on. can please help? works on page (drop-down menus us, photo album, , our families) robertandsharon.com don't work on page robertandsharon.com/about-us/jenna.htm thanks, sharon actually, using 1 of our old free extensions, that's not "pvii menu" on page ;-) your problem seems macromedia swap image , preload image scripts not in page. -- al sparber - pvii http://www.projectseven.com extending dreamweaver - nav systems | galleries | widgets authors: "42nd street: mastering art of css design" "sharonw" <webforumsuser@macromedia.com> wrote in message news:eoes0h$13h$1@forums.macromedia.com... >i have drop-down menus on navigation bar, , work on >pages > not others. created them using template each page has > exact same > code navigat...

Comment form field - Joomla! Forum - community, help and support

hi all, love theme use now, there error in akocomment  commnet field  size abnormal. i wish can find how make normal>? template. please me. this url http://joom.goblog.igb.net/ to see these comment field: use name login : test password : testing i tracked down this: table.contentpaneopen td { width: 100%; padding:0px; } if remove td give: table.contentpaneopen { width: 100%; padding:0px; } your comment ok you have see if impacts on other areas of site. Board index Joomla! Older Version Support Joomla! 1.0 Templates & CSS - 1.0.x

Help! Syntax error!! - Raspberry Pi Forums

the simplest of programs: print "hello, world!". whatever add, last ( " ) in first print line shows syntax error. however, when run program lx window with... helloworld.py ...it runs , works perfectly. why getting syntax error when colour code shows line green? advice gratefully received... got yesterday , set today, can't off starting blocks! hello, assume, want run hello world python code, , in console first start python, , enter "print "hello world"". when start python interpreter, check version information printed. (the following system) code: select all pi@raspberrypi ~ $ python python 2.7.3 (default, jan 13 2013, 11:20:46) [gcc 4.6.3] on linux2 in 2.7, print "something" valid syntax. in python3, not valid, print("hello...") needed here. hope helps gerhard raspberrypi

lastResult vs event:EventResult

dear forum, when using results returned web service, , binding results control (e.g. datagrid), examples tell use object "myws.lastresult", other examples pass "event" function, , refer "event:eventresult" in function. can explain when use 1 approach, , when use other? thanks, steve both myws.lastresult , event:resultevent return same data, using event function method makes debugging easier , makes code more flexible. when first began using flex, used myws.lastresult method, debugging became difficult aps grew in size. use event function approach. except not having write function process event, quite trivial, can't think of reason use myws.lastresult approach. vygo More discussions in Flex (Read Only) adobe

Weareble Led choice advice for lilypad arduino

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hello everybody, i'm going set led circuit linked lilypad arduino. that kind of circuit gonna weareable led circuit put on musician dress. so i'm looking high led brightness, i've bought these  (http://www.luxeonstar.com/cool-white-5650k-10mm-square-led-235-lm-p/mr-wc310-10s.htm) but problem high brightness needs high power too, , don't know how powered 10 led of these kind without burn lilypad arduino. any advice? thank in advance   quote i don't know how powered 10 led of these kind without burn lilypad arduino. that's simple. arduino turns low current transistor on or off, switching high current power supply led on or off. did notice part "suitable heatsink"? on musician dress? Arduino Forum > Using Arduino > Project Guidance > Weareble Led choice advice for lilypad arduino ...

SSL & wrappers - Joomla! Forum - community, help and support

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i have several joomla sites....working great  however, have few ssl registration forms call within joomla. currently, open these url links & display them in external window. works & 'padlock'. i've tried calling them in wrapper, nices not work. is there way integrate selected ssl pages wrappers? i'm not expert @ this, but... when open site "https://www.othersite.com" in wrapper, secure. reason not see teh padlock because site not using ssl. if page wrap uses ssl, not see padlock. ... still secure , have padlock if url in browser , not wrapper. i hope made sense.  Board index Joomla! Older Version Support Joomla! 1.0 General Questions - 1.0.x

edit modules on the start page - Joomla! Forum - community, help and support

hello, i have got question... have read german forum, there no answer. hope finde here. my start page should this. static_text news1 | news2 text1 | text2 i'm fare this. that's looks like.. first newsfeed, 2 news. after this, load user-modules. here code: my problem: i can't edit modul on start page. have able this. easier user. i hope find solution here. thanks lot mike no need module stuff. standard frontpage this: publish 5 items front page, 5 want. from teh backend, go menu-->mainmenu click on home under parameters, set: leading=1 intro= 5 colums=2 category order = no, primary ordering only primary order = frontpage ordering. ordering control in frontpage manager. Board index Joomla! Older Version Support Joomla! 1.0 General Questions - 1.0.x

Thread: Atheros 9825 wireless card

hello absolutely new linux, have band new hp dv3-2155mx laptop , installed latest version of ubuntu on (9.01 believe), cannot wireless work, make of card atheros 9825 , have followed after reading evrything on net comes network unclaimed, dont have wired acces ubuntu, need help. here info gathered shikhir@ubuntu:~$ lspci 00:00.0 host bridge: intel corporation mobile 4 series chipset memory controller hub (rev 07) 00:02.0 vga compatible controller: intel corporation mobile 4 series chipset integrated graphics controller (rev 07) 00:02.1 display controller: intel corporation mobile 4 series chipset integrated graphics controller (rev 07) 00:1a.0 usb controller: intel corporation 82801i (ich9 family) usb uhci controller #4 (rev 03) 00:1a.1 usb controller: intel corporation 82801i (ich9 family) usb uhci controller #5 (rev 03) 00:1a.7 usb controller: intel corporation 82801i (ich9 family) usb2 ehci controller...

8U vs 16U

functionally difference? , there advantage either beyond cost of board? there approximate $10.00 cost differential, notice, in scanning ebay's prices. the difference there in mega 2560's @ same level. or 'last years models'?. doc the 16u2 same 8u2 except has 8kb more flash. no real difference normal use has potential better usb firmware supporting, example, usb serial , hid keyboard/mouse/joystick @ same time. Arduino Forum > Using Arduino > Microcontrollers > 8U vs 16U arduino

Can not perform ChatServer and ChatClient, help me!

hello, found problems when tried experiment chatserver , chatclient using 2 of pc (notebook , netbook) i using arduino uno , arduino ethernet shield , pile up. then have connect notebook uno using rs-232 , ethernet shield netbook using lan cable. then compile chatserver in notebook upload it, compile chatclient in netbook. then open serial monitor of notebook, show none. is there wrong cable connection? or steps? or lose step do? telnet? i code of chatserver (http://arduino.cc/en/tutorial/chatserver)and chatclient (http://arduino.cc/en/tutorial/chatclient). i insert mac address same ethernet board mac address. this insert in chatserver: code: [select] ... byte mac[] = { 0x90, 0xa2, 0xda, 0x00, 0xfe, 0xac }; //same sticker ipaddress ip(192,168,1, 27); // same notebook lan ip address ipaddress gateway(192,168,1, 1); ipaddress subnet(255, 255, 0, 0); ... this insert in chatclient: code: [select] ... byte mac[] = { 0x90, 0xa2, 0xda, 0x00, 0xfe, 0xac }; //same sticker ipadd...