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256  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 ?
257  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
258  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
259  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
260  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 !!
261  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)
262  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
263  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 !
264  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
265  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.
266  Using Arduino / Motors, Mechanics, and Power / Re: Digital to Analog conversion on: May 01, 2012, 07:29:21 am
Maybe  74HC4067, 16 analogue channels ? Or others smaller like the 74HC4051 (8 channels), etc
267  Using Arduino / Motors, Mechanics, and Power / Re: Call a method during a delay using an if statement on: May 01, 2012, 07:25:14 am
As the delay tutorial explain, u cant really do anything else while the delay is active !
268  Using Arduino / Project Guidance / Re: Sound to guitar amplifier. on: May 01, 2012, 05:50:27 am
If u explain better what you want to do, schematic if you have and code, would hep, as we dont have clairvoyants here !!
269  Using Arduino / LEDs and Multiplexing / Re: Problem with MAX7219 on: May 01, 2012, 05:39:36 am
It is hard to say from the pic, but id guess i can see some cold solders there anyway. Another thing, if the caps were on the schematic, then you should use them. Might work for a couple minutes, but doesnt mean that will not blow something after a while on. wouldnt be the firsst nor the last time.
270  Using Arduino / LEDs and Multiplexing / Re: Problem when expanding on the ShifOut tutorial for LEDs on: May 01, 2012, 05:33:00 am
Remember mine wouldn't work at all until I unplugged the 5V jumper going from the arduino to the breadboard. Once I did that, I finally got life out of it. Maybe that is a clue to some other issue. Other than that, Mine is wired just like yours. How about sending COM commands to turn each one on or off individually? Would that be a simple bit of code?

You cant just chose what you feel like wiring and what not... Things have a reason to be on the schematic, including decoupling caps... Otherwise, its quite normal it wont work properly !!
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