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1  International / Generale / Re: Translations for Maker Fair poster - Traduzioni di Maker Fiera manifesto on: Today at 05:12:17 am
Hi PalolP fancy doing some more voice recordings?


I just put Ambarabà ciccì coccò through Google translate and it came up with:-
Quote
three owls on the dresser
making love
with the daughter of the doctor ;
The doctor became ill :
A dresser means a piece of furniture, that is fine but:-
Now "making love" in English usage now means "having sex" so sex between a Doctors daughter and three birds does not sound good, tell me it means something different please.  smiley
2  Using Arduino / Project Guidance / Re: 555 timer, what resistor and capicitor to use. on: Today at 04:12:56 am
It says:-
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Using IO trigger for at least 10us high level signal,
That means that a signal greater than 10uS is needed. It does not mean it has to be 10uS.
3  Using Arduino / Project Guidance / Re: 555 timer, what resistor and capicitor to use. on: Today at 04:00:32 am
Not exact at all.
Where does it say it needs 10uS?
4  Using Arduino / Sensors / Re: How to get composite video output from OV7670 Image Sensor? on: Today at 03:09:06 am
You don't need an arduino to do this.
You take a parallel D/A chip and put it on the video output. This gives you the video signal.
You then take the VSYNC and HSYNC and mix it with gates to get a composite sync output, as shown here:-
http://www.epanorama.net/circuits/vga2rgbs.html

Then you add together your sync and video as shown here:-
http://www.nbtv.wyenet.co.uk/cammonsync.htm
5  Using Arduino / Project Guidance / Re: 555 timer, what resistor and capicitor to use. on: Today at 02:55:03 am
Try this
http://web.udl.es/usuaris/p7806757/555-calculadora/555%20Calculator.htm
6  International / Generale / Re: Translations for Maker Fair poster - Traduzioni di Maker Fiera manifesto on: Today at 02:51:56 am
I have just been looking at the translation of ninna nanna, is this not considered raciest?
Will it cause offense especially to black visitors?
7  Using Arduino / General Electronics / Re: Capacitor Zener Voltage converter on: Today at 02:19:34 am
You need isolation to make it safe. The normal method is using a transformer and if you have a transformer you might as well use it to drop the voltage. Then use a voltage regulator chip, much more effecent than a shunt Zener.
8  Development / Suggestions for the Arduino Project / Re: Compiler continue to use commented out #include headers on: Today at 02:13:44 am
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However, after commenting out the #include code the compiler continue to use these commented out headers!

So you think the compiler is ignoring the commenting out bit do you?

What happens if you remove the include line completely?

9  Using Arduino / General Electronics / Re: Capacitor Zener Voltage converter on: Today at 02:00:25 am
No it is not safe and in most places it is illegal.
10  Using Arduino / LEDs and Multiplexing / Re: Control Addressable RGB LED strips using serial comm and C# on: Today at 01:52:07 am
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i want to know. if it possible for me to do this projects.
Well this project is perfectly possible.
Whether you can do it is another matter, but the only thing stopping you is yourself.

Good luck and have fun learning.
11  Using Arduino / Project Guidance / Re: Can Multiple Arduino Connect to Raspberry (as a Master) with i2c? on: Today at 01:45:27 am
That link is the right idea but it is wrong about the signal levels.it will work straight off like I said.

The arduino  must be used as a slave device and yes you can set that slave device address in software to any address you like.
12  Using Arduino / Programming Questions / Re: Turn digitaloutput to 1 when PWM value is 255 on: Today at 01:37:13 am
Yes but it is this bit that is wrong.

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Due to the design of the light module, when PWM is set to 255 (pwm max value, minimum brightness) the LED module will still be dimmed to about 20%, still drawing significant power.

The design of this is wrong, that is what needs correcting.
13  Using Arduino / Programming Questions / Re: Turn digitaloutput to 1 when PWM value is 255 on: Today at 01:25:12 am
When you do an analogue write with a value of 255 then the output is a logic one just the same as if you did a digital write.

So what ever your problem is then this is not the soloution anyway.
14  Using Arduino / Project Guidance / Re: Compile code on the arduino on: September 22, 2014, 02:43:28 pm
No.
15  Using Arduino / General Electronics / Re: I2C Help on: September 22, 2014, 11:37:35 am
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Arduino must be powered with 7V so I can't feed the arduino with the bus
Sorry that doesn't make any sense.
The 7V you feed into the power in jack gets reduced to 5V by the regulator, you can not run an arduino directly from 7V.

The I2C bus is an open collector bus, that means it just pulls down so you should have no problem in connecting it to a 3V3 I2C bus.

The only snag is that you will have to disable the Arduino's internal pull up resistors either by hacking the existing library or using something like the "master I2C" library which has calls to enable or disable the internal pull up resistors.

You can get it here:-
https://github.com/DSSCircuits/I2C-Master-Library
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