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i've written software old device on internet emulating keypad - , software works well. but i'm having difficulty getting electronic interface right - , appreciate ideas. the device shared bus 12v system - when device talk raises tx line 12v transmit mark , floats transmit space or when not talking - there seems 3kr , small capacitance maybe 50nf on line. i want connect tx of arduino (running @ slow 1500 baud rs232) so 1. @ normal rest sate of 5v - output of circuit floating 2. @ mark arduino tx pin 0v - output of circuit 12v 3. low part count id easy others build - (one or 2 max transistors hopefully). 4. cannot use 2 pins wont know when arduino has completed sending data can disconnect bus. now have works - not happy voltage level (due divider have in there) or the sharpness of square wave capacitance. can suggest better circuit? keeping in mind signal needs float not ground. here have - works - signal not good. basically id solid state version of: this circuit atte...

hi i understand have create structure so: section > cat > content. that cannot create 1 this section > cat > sub cat > content. is correct? if - avoid having excessvely long scrolling content pages (because 'sub-cats' lumped in 1 content page)  ideally using links - posistioned after natural breaks in content. can suggest best way go here. have considered using {mospagebreak} see page 144 user manual http://help.joomla.org Board index Joomla! Older Version Support Joomla! 1.0 General Questions - 1.0.x

hi,  this little library interface 30-pin simm ram modules using atmega328p on arduino. https://github.com/zrafa/30pin-simm-ram-arduino. it gives arduino projects ram store , restore dynamic data in sketches. it inspired in great hack of "linux on 8bit atmega168", by dmitry grinberg. but, work of dmitry not easy use is. in fact, does not work arduino, several reasons. atmega328p , atmega168 different. arduino has several less pins dmitry's project, , arduino uno slower (just 16mhz). mention of them. so nightmare find proper timings initialize the simm ram properly, , refresh it. after reading old ram chip datasheets , souce code everywhere, able use simm ram modules arduinos. the github code release code, others can use easily, and it free software (under gpl v2). simm rams used in @ (286), 386, 486, macintosh plus, macintosh ii, quadra, atari ste , wang vs systems, still ok find spare 30-bit simm ram around, find useful have learnt how to operate them ard...

hi guys, i'm new please bear me. i need sensor register object passing through. if tell me need started , appreciated. cheers!  xd you can explain wanted  do., here link related you. sensor available in sparkfun http://arduino.cc/en/tutorial/ping?from=tutorial.ultrasoundsensor http://www.instructables.com/id/arduino-bike-speedometer/ http://makezine.com/2010/11/02/arduino-speed-detector/ http://playground.arduino.cc/main/readingrpm Arduino Forum > Using Arduino > Sensors > Looking for speed sensors arduino

hi, is there modular mechanical system can used build (the mechanical side of) prototype? as kid used fischertechnik , there other systems out there, meccano technic lego (see http://en.wikipedia.org/wiki/meccano#see_also) i'm looking 'framework' build/test prototype, put motors/servo's, conveyors, sensors, etc, prove concept without going thoug 3d cad process. you can take apart, modular , doesn't involve lot of cutting & drilling etc. again solid enough for, let say, desktop size proto. so arduino solution mechanical side ;-) looking forward input/how fix side of project. links, sites, images welcome surely depends entirely on it's prototype of i.e. properties , behaviour want provide. Arduino Forum > Using Arduino > Project Guidance > What (system) do you use for mechanical prototyping? ...

hi, i've downloaded 'jdownloader' linux. i've extracted archive videos folder when click on exe file error message. [/home/superfocus121/videos/jdownloader/jdownloader.exe] end-of-central-directory signature not found. either file not zipfile, or constitutes 1 disk of multi-part archive. in the latter case central directory , zipfile comment found on last disk(s) of archive. zipinfo: cannot find zipfile directory in 1 of /home/superfocus121/videos/jdownloader/jdownloader.exe or /home/superfocus121/videos/jdownloader/jdownloader.exe.zip, , cannot find /home/superfocus121/videos/jdownloader/jdownloader.exe.zip, period. i'm exceptionally new ubuntu, , ever run applications in mircrost windows enviroment, can tell me doing wrong , how fix it? i don't use it, check out http://ubuntuforums.org/showthread.php?t=904981 more here http://www.googlubuntu.com/resu...

please view http://www.millyarnaires.com then click on videos. you see problem have.  when created section made section blog....and reason either choose wrong or can not figure out how modify layout of page.  of videos have stacked this:  being video....all on 1 page until reach seems 5......then "read more" heading....and title link videos after first 5.                                                                                       read more.... funny video 1 funny video 2 the videos listed after read more (v1, v2) shown in new page.  i want have 5 videos per page...then button says next or previous.  each video stacked on top of other not change width of overall site.  i hope explained well. if click on link of go site if link above ...