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256  Using Arduino / Programming Questions / Re: Arduino Serial Control - Strings? on: May 04, 2012, 09:34:58 am
http://www.gammon.com.au/forum/?id=11425
Tiago- Ve la se isto ajuda
Transltd= See if this helps in any way !!
257  Using Arduino / Programming Questions / Re: Conditional statement help on: May 04, 2012, 09:25:23 am
You can always create a function to do the "last input reading low to signal an output", and use it inside the conditional roughly same way you have there, no ?!
That way you can call it inside the conditional variable which will or not allow it to proceed...Makes sense ?!?
258  Using Arduino / Project Guidance / Re: PWM, LFO and Osc, adjustable with LCD Display the several POT values on: May 04, 2012, 07:21:48 am
Here is my starting point.
This is just a simple thing and one of several sounds included. Ill also be using an external DAC to interact with external conponents as i intended from the start, though still researching the best way and more effective !
http://dubworks.blogspot.co.uk/2012/05/so-here-is-one-of-first-versions-of.html
259  Using Arduino / LEDs and Multiplexing / Re: Problem when expanding on the ShifOut tutorial for LEDs on: May 03, 2012, 04:08:45 pm
Decoupling term was used refering to the purpose they are fulfilling on the circuit. The components are capacitors. The ones you bought should do alright.
Ill remind you Nick's reference to Grumpy Mike tutorial about what are their purpose. Will be better than us explaining it ( you should get used to research for yourself, and ask for help with doubts as opposed to expect people to give u a-build-by-connecting-the-dots kind of tutorial. That way you will not only be independent, void crap directions and also give you a much more complete insight into WHY things work as they do, and are built as they are !




Read Grumpy Mike's tutorial about them:

http://www.thebox.myzen.co.uk/Tutorial/De-coupling.html

260  Using Arduino / General Electronics / Re: 3v voltage for Nokia LCD on: May 03, 2012, 03:48:34 pm
Yeah you are right about the last one, and i didnt affirmed you had denied it.
But it works -here is why :
Quote
PCD8544 is a low power CMOS LCD controller/driver All necessary functions for the display are provided in a single chip, including on-chip generation of LCD supply and bias voltages,
261  Using Arduino / LEDs and Multiplexing / Re: Problem when expanding on the ShifOut tutorial for LEDs on: May 03, 2012, 03:20:38 pm
Do u mean the decoupling caps,or the ones that go on the vcc ( pin 16?!) of this specifi SR IC ?
Was that your doubt ?
262  Using Arduino / General Electronics / Re: 3v voltage for Nokia LCD on: May 03, 2012, 03:15:57 pm
Well, despite never have tried it myself, i have seen it done, and you can confirm theres hundreds of successful projects online as well( which confirms what i have seen with my eyes) so, it works. Been a while and my mates still working ?!?! You gonna try deny that ?!?
I posted just one of the many online ( have u seen it at least ?!?0
So for that matter, solves his problem... Sparkfun sells a shield based on that same chip and method
263  Using Arduino / General Electronics / Re: 3v voltage for Nokia LCD on: May 03, 2012, 10:08:46 am
http://code.google.com/p/pcd8544/
a   library for that chip with detailed info
264  Using Arduino / General Electronics / Re: 3v voltage for Nokia LCD on: May 03, 2012, 10:05:24 am
3 .3Vwill do,  anyway.  so that is sorted. As i said the PCD8544 will do most of the work for you. you will find a schematic for it quite easy on the net. there are also other solutions though, as level shifter goes
265  Using Arduino / General Electronics / Re: 3v voltage for Nokia LCD on: May 03, 2012, 08:19:05 am
74LCX245 can be used for the 5v-3v conversion, and for example sparkfun uses the lcd driver PCD8544 which is a one in all chip. So if u bought a shield for it probably already has a chip controlling that !! If its a recovered one, theres schematics and examples abound on the net !!
266  Development / Other Software Development / Re: CodeBlocks Arduino Edition, the open-source Arduino IDE for demanding developers on: May 02, 2012, 09:32:05 am
Could you do a basic tutorial about how to configure it all , at least to do a basic blink sketch from a new install, for those that never used it ?!? PLEASE?!? It is a wicked share and i really thank you in advance !
Im asking this cause i tried but having errors   (wmath coming up with errors, but i guess its some underlying issue im not aware of)
267  Using Arduino / LEDs and Multiplexing / Re: Problem when expanding on the ShifOut tutorial for LEDs on: May 02, 2012, 07:21:06 am
I love that important note- Seems a lot of people just chose what to include and what not, instead of following schematics.Specially decoupling caps, that tend to be such pillar of the foundations.
Nick, you are a star mate; Always ready to help people. Nice to see that, specially in the times that we live
268  Using Arduino / LEDs and Multiplexing / Re: Problem when expanding on the ShifOut tutorial for LEDs on: May 01, 2012, 05:24:46 pm
The more you add, the more noise will become an issue, no doubt about that !
269  Using Arduino / Motors, Mechanics, and Power / Re: Call a method during a delay using an if statement on: May 01, 2012, 01:21:53 pm
there are already loads of posts explaining it
270  Using Arduino / LEDs and Multiplexing / Re: Problem when expanding on the ShifOut tutorial for LEDs on: May 01, 2012, 11:07:42 am
Have u tried do what you was advised and connect the MOSI to the forward chips, individually to see if they work? That would definitely help you to first and foremost identify which section is causing the issues in the wiring, it seems.
You need to follow some kind of logic when re-checking all the wiring to troubleshoot.
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