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If the board is an Uno with the AVR in the socket (rev 0 to rev 3, the "Pro" has an SMD chip) then you can get a bootloaded ATmega328P (might cost $5, DIPMicro sells bootloaded 328P's) and put that in the socket. It's one reason I don't worry as much about burning a pin on my Unos, sure I could ruin the USB chip but short of that or worse I can replace the chip I program.
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Quote
I have read the basic information and I know that ATTiny85 has only one external interrupt at pin7
So, you figured you'd skip the step of defining pin 7 as INPUT. I'm curious why.

Quote
so I'll atach the image of the circuit as well.
Today?

Why do you think you need an external interrupt to read a switch state?
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Software / Re: Cambiare tonalità buzzer e...
Last post by Patrick_M - Today at 12:51 pm
mi era parso di capire che volessi variare il suono...

nel tuo caso invece basta
 digitalWrite(suono,HIGH);

seguito da
delay(lunghezzaSuono)

e quindi
digitalWrite(suono,LOW);
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Do you want guest posting sites ,
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Project Guidance / Re: How to improve response ra...
Last post by Wawa - Today at 12:48 pm
Search on ebay for "big arcade game button".
Lots of big buttons with microswitches that are made for this type of abuse.
Leo..
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Français / Re: Faire de 5 booleans une va...
Last post by RIN67630 - Today at 12:48 pm
commencez par mettre des B0011 si vous utilisez du binaire ça aidera :)

    C'est le cas dans mon code, c'était le but. pour ce qui est des case, je sais faire comme ça, mais il y a toujours mieux. Je lâche pas l'affaire, si je trouve pas cette semaine, ça sera peut-être dans deux mois. Mes connaissances ne me permettent pas d'optimiser mon code pour l'instant.

Tu ecris simplement ce qu'il faut faire dans chaque cas de figure case n:

    Ouais, mais ça fait un robot qui zigzag et manque de finesse. Je cherche un moyen de définir la vitesse de rotation des roues en fonction de leur écartement et de l'empattement. Le capteur, selon sa distance avec l'essieu, détermine un angle, je voudrais partir de là. C'est un calcul de différentiel, faut mixer des équation écrites à moitié en grec, je ferai ça à tête reposée.
Si tes capteurs ne sont pas proportionels, tu auras du mal a faire en finesse, à moins d'en rajouter.

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General Electronics / Re: DC noise suppression
Last post by MarkT - Today at 12:47 pm
in a few days im going to switch to this transformer  and add a RC filter before the linear regulators.
Why add an RC filter before the regulators?  The regulator can do 60 to 80dB of noise attentuation, RC is
nothing compared to that.
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Its possible the module was chosen, specifically because there is no Library, and that you need to read the datasheet and work out how to use it ?
I don't think this is the case, since everyone had to choose a different RF module from a selection of modules.
Also the teacher was a bit suprised we could find so little on the internet.
We have also tried using the datasheet to configure it via Arduino but I think we are doing something wrong.
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Programming Questions / Re: Relay not behaving..
Last post by PaulS - Today at 12:46 pm
Quote
Should I change it to something else ?
Yes.

Code: [Select]
char Pressed[] = {'S', 'F', 'S', 'F'};
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Programming Questions / Re: sketch_apr17a.ino:1:24: fa...
Last post by pert - Today at 12:46 pm
I have tried changing the capital letter but still the same error and I have checked my MFRC522 folder and it has the deprecated file in it
If you're still getting the same error that would indicate you didn't actually change the capital letter since the error contains the capital letter.

If you want help with this you need to provide an exact set of instructions that will allow us to reproduce the problem. This means we need to know exactly where you got the libraries, how you installed them, and which board you're compiling for.
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