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106  Community / Bar Sport / Re: Douglas Adams would be proud on: August 06, 2014, 02:46:30 pm
Yeah, but does everybody really want to know where it has been ?
107  International / Nederlands / Re: sensor schakelt niet goed (opgelost) on: August 06, 2014, 02:41:35 pm
Hoi comteccie.

Je noemt nu voor het eerst de hardware pull ups (of ik ze dat nu voor het eerst).
Daarom leest het voor mij alsof je jezelf tegenspreekt.
Als je hulp nodig hebt, is het wel belangrijk dat je de juiste, complete informatie geeft.
Want anders krijg je dus niet passende tips en opmerkingen, waardoor je veel langer dan nodig bezig bent je probleem op te lossen.
En uiteindelijk word die informatie dan toch nog gegeven.
Dus waarom niet meteen.

Ik ben het verder helemaal eens met Nico, de conclusies die je getrokken hebt zou ik niet zo snel uit de gegeven informatie halen.
Ook niet met de 13 torren die je aanstuurt met de Arduino, als je een geschikte variant kiest en die voorziet van de juiste weerstanden dan zou een en ander niet snel een probleem mogen vormen.

Nu is het dus zo dat je door die dikkere voeding een stabieler geheel ziet, maar je weet dan nog niet of er niet toch nog iets niet OK is.
Het zou dan beter zijn om te meten (is weten, zul je vast vaker gehoord hebben).
Zo voorkom je dan overbelasting die later een ernstiger gevolg kan (niet moet) hebben.
108  Community / Website and Forum / Re: SPAM alert. on: August 06, 2014, 02:19:29 pm
If you go and visit the user's profile page, you can't see anything that tells she/he is banned.
I do have some understanding how this banning mechanism might be working.
That's why i said "seems to be" instead of "is".
109  Using Arduino / Displays / Re: Need to make it stop on: August 05, 2014, 05:13:06 pm
Nice, the problem is solved.

Do you understand why ?
110  Community / Website and Forum / Re: SPAM alert. on: August 05, 2014, 04:56:33 pm
Lots of people got this, and i just reported it as i entered this forum (because i did receive it too).
So it was reported.
The user seems not yet to be banned, but i'm counting on it that that will not last a day.
111  Using Arduino / General Electronics / Re: How screwed am I? (Failed solder attempt) on: August 03, 2014, 05:50:04 pm
Where do I connect the reset pin to on the arduino?

Look over here

Regarding the tip about repairing by soldering thin wires to some tracks:
That's a job for someone who has practiced a lot and has reasonable experience.
I'm afraid you're not there yet.
If i'm seeing it correctly, you have torn off all pads but one, and 3 tracks.
One of those tracks disappears under a chip (these tracks have turned from white (lacquered) to black).
That makes the rest of the trace very difficult to reach, unless you have a PCB layout where you can track those traces.

Further, the PCB is very likely to be double sided.
Is there similar damage to the other side ?
112  Using Arduino / Displays / Re: Need help with i2c adaptor for 16x2 lcd on: August 03, 2014, 04:58:10 am
That library is also required for the i2cLCDguesser i mentioned earlier.
It helps you find the correct constructor.
Different modules might have different pin to pin connections between the chip and the display, there's no standard.
That even happens between different versions of the same module.
So you'd have to track the traces and draw a map to find out about that, or use the guesser (which one would be easier ?)
113  General Category / General Discussion / Re: Arduino Language Name Alternative on: August 02, 2014, 03:31:38 pm
Quote from: GreenPhantom
'B' for 'Borland', a newer version of C++)

I doubted that, and so i had a peek at the opinions at wikipedia.
Borland is (or was) a software house that was known for their compilers, Turbo  Pascal (or should that be P++ nowadays ?) must have been the most well known which evolved later to Delphi.

Wikipedia's opinion is that the B in B++ was inherited from Bell labs' derivation of BCPL, which is described as a total different language from C.

My opinion is that there is no A++.
The Arduino programming language is C with an extra shell.
114  General Category / General Discussion / Re: Reintroductions on: August 02, 2014, 03:05:12 pm
Hoi SuperCow, welkom terug.

Since your last activities, a lot has changed.
IDE has evolved a bit and we're now at v 1.0.5.
Older libraries that worked with a version lower than 1.0 will likely not work anymore.
Did you know that, and did you adapt these libraries of yours ?
115  Using Arduino / Motors, Mechanics, and Power / Re: Google Little Box Challenge on: August 02, 2014, 10:27:02 am
Smaller also means shorter (internal) leads.
That again could mean less dissipation, so less waste of energy converted to heat.
Smaller usually also means higher switching speed, which might give some extra efficiency.

And of course easier to fit.
116  Using Arduino / Displays / Re: Problem connecting Arduino UNO and SaintSmart 20x4 on: August 02, 2014, 09:03:56 am
I missed that you wired it to 3 volts, but i don't think that is correct.
The unit i'm using is connected to 5 volts, but it isn't one from sainsmart.

I pointed out that you need to use the correct library.
This is what the sketch tells you:
Quote from: sketch
*  It requires using fm's LiquidCrystal library replacement:

You do not need to use this sketch if you know what adapter you have.
Because then you can find the correct settings to tell the library at which PCF8574 pins what LCD pins are connected, and that is what you need to know and tell the library.
You should be able to find this by visiting the website of the product.
If there is no website available, the above mentioned guesser comes in.

Perhaps you should wait for bperrybab to chime in (if he does see this thread), but as he's been telling about this sketch in 2013 (after introduction of IDE > 1.0), i assumed there are no issues left.
That could turn out incorrect, which does happen when assuming things.
117  Using Arduino / General Electronics / Re: What is a jack plug on: August 02, 2014, 08:08:39 am
Should i really explain this ?
118  Using Arduino / LEDs and Multiplexing / Re: Fading an RGB LED on and off on: August 02, 2014, 08:05:34 am
That means that you need to have a minimum level of one, not of zero.
The red needs to be higher than one, the sketch you showed would allow for either 2 or 3 as the lowest value for that (as you can't have the value 2.55).

There is indeed a minimum voltage for a LED to light.
But that's the beauty of PWM: the voltage is either zero or five volts (with an Arduino).
Your multimeter averages (takes about a second to do that) this, and would approach the value to some milli voltage shown.
That means your LED will be actually lit at full brightness, but for a very short time.
Your eyes do the averaging, like the multimeter does.

If the stepping isn't a problem you can ignore it.
Or ignore it for now.
You can try to improve towards a logarithmic scale later.

But first things first, let's get that LED dimmed without the color shifting noticeably.
119  Using Arduino / General Electronics / Re: What is a jack plug on: August 02, 2014, 07:38:22 am
Well, then this must be an interesting case, as both connectors seem to be of the hermaphrodite kind...
120  Using Arduino / Displays / Re: Problem connecting Arduino UNO and SaintSmart 20x4 on: August 02, 2014, 07:28:57 am
Yes you can.
A *.pde file is an Arduino sketch, made with an IDE version lower than 1.0.
You can open it by pointing to the Arduino program, or drag it to an already open IDE, i just tried that.
I can't tell how to do that if you are a non windows user, because i don't know.

By the way:
Read the requirements mentioned in the comments in top of the sketch.
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