Arduino by Davis: “Reception 433Mhz et allumage relai” plus 19 more

Reception 433Mhz et allumage relai
Re: Notepad++ User Defined Language for Arduino
Come leggere Datasheet di un p-mosfet
Re: multiple thermal printers
Re: Datei auf SD mit Text füllen
EE Bookshelf: Stability Testing a Switching Mode Power Supply
Re: Datei auf SD mit Text füllen
Re: Arduino as ISP
Re: attiny85
ATMega 16u2 standard driver issues
Eingangswiderstand "Analog Input Pins"
Beer Maker Builds a Raspberry Pi Tap List for His Home Brews #piday #raspberrypi @Raspberry_Pi
Re: Rotary encoder together with arduino for measuring angle
Re: DS1307
Modify sketch to accommodate second light sensor
Uploading a file from st card to FTP server
Re: Impulsi radio - radio pulsanti
Re: Controller des leds avec une radio 2.4ghz
Re: inviare parole ad Arduino in rete
Re: Comunicazione UART → I²C

Posted: 15 Feb 2013 01:51 AM PST

Bonjour,
Je souhaiterais savoir s'il est possible d'un côté recuperer les valeurs avec un recepteur 433Mhz et d'un autre côté à l'aide d'une page web et d'une liaison USB mettre en marche un relai?

Merci d'avance

Re: Notepad++ User Defined Language for Arduino

Posted: 15 Feb 2013 01:51 AM PST

Hi Riva,

Sorry for my english.

At first thanks for your contribution.

Did you try NppExec to compile sources with Arduino ?

My script to execute is :

"C:\Users\Gérard\Desktop\arduino\arduino-1.0.3.exe" "$(FULL_CURRENT_PATH)" -run

and the reply is :

"C...

Come leggere Datasheet di un p-mosfet

Posted: 15 Feb 2013 01:51 AM PST

Ciao.. sto cercando di capire come inserire in un circuito un p-mosfet e vi chiedo se mi potete aiutare a capire i parametri di funzionamento.
(Vi confesso che ho cercato e letto molto in giro per la rete, ma non ho trovato nessuno che spieghi in modo ...

Re: multiple thermal printers

Posted: 15 Feb 2013 01:50 AM PST

Well the printer specs say

Protocol: TTL Serial, 19200 baud

So in my limited knowledge I am assuming that a TTL-to USB (such as the one I posted) should do the trick...

Re: Datei auf SD mit Text füllen

Posted: 15 Feb 2013 01:48 AM PST

Also fehlt vermutlich die Ausgabe von

Code:

Serial.println("Initialisierung fehlgeschlagen!");

Schliess den Serial Monitor an und drück danach die Reset-Taste ...

Funktioniert der cardinfo Beispiel-Sketch ...

Bau mal ein delay in setup() ein...

EE Bookshelf: Stability Testing a Switching Mode Power Supply

Posted: 15 Feb 2013 01:41 AM PST

Switching power supplies can offer much better efficiency than linear supplies, but they're also a bit trickier to get working and require more components and more precise component selection. How do you evaluate switching more power supply circuits? In reality there are a lot of parameters to test often requiring specialised equipment — things like a DC load to test efficiency, special probes for your scope, etc. — but there's a good article at Scope Junction on the topic: Stability Testing A Switching Power Supply.

The articles assumes you have access to some fairly high end equipment (a network analyser, etc.), but it's an interesting read just to see some of the real world considerations that you need to keep in mind with commercial design and how much testing really goes on (or should go on) in the manufacturing process.

Some manufacturers do this better than others. I have vivid memories of working as an apps engineer being tasked with helping a Japanese company using a brand new and complex MCU in their product. Every time I saw an email from them in my inbox (daily) I winced because I knew it would be another incredibly precise question involving very specific values or test conditions and I'd have to call up the chip design team to get the test parameters and see what was up … it was never much fun, but it did instill in me a lot of respect for the testing efforts they went through, and sometimes they were right and identified one or two issues that got past the validation team MCU side. It was a wakeup call for everyone, but a good one. Testing matters, and often testing can be as much or more effort than initial product development.

Have any horror stories where you wish you had put more effort into testing yourself or had to compromise because of deadlines and it ended up biting you in the back-end? Post them up in the comments below!

Re: Datei auf SD mit Text füllen

Posted: 15 Feb 2013 01:20 AM PST

Quote

nur bekomme ich keine Statustexte auf dem seriellen Monitor angezeigt

Gar keine ?

D.h. weder
SD Karte Initialisiert
noch
Entferne templog.txt...

Was passiert, wenn vorher eine Datei templog.txt mit Inhalt exist...

Re: Arduino as ISP

Posted: 15 Feb 2013 01:16 AM PST

Where did you get the ATtiny core from (the extension for the IDE because the standard, downloaded version of the IDE has no support for ATtinies)? Looks like the new items in boards.txt weren't installed correctly.

Re: attiny85

Posted: 15 Feb 2013 01:13 AM PST

salve michele

quindi basta dire al codice i nomi delle porte , nel caso nel pilotaggio lcd ( i famosi 6 fili di caollegamento )li posso collegare tranquillamente al tiny84 per esempio

pin 3 data -___ ( i 4 data per pilotare lcd)
pin 4 data __...

ATMega 16u2 standard driver issues

Posted: 15 Feb 2013 01:12 AM PST

Hi there,

I'm new to this. Thanks for creating such a great forum. Has been lots of fun learning my way around Arduino so far.

FYI:
Using a work laptop with admin privileges atm, running Windows 7.
Have flip and Arduino installed

I built a midi instrum...

Eingangswiderstand "Analog Input Pins"

Posted: 15 Feb 2013 01:12 AM PST

Hallo,

würde gerne einen Drehpoti an einen analogen Input Pin anschleßen.

Um dessen korrekten Widerstand zu berechnen, benötige ich den Eingangswiderstandswert der Analogpins.

Kan leider nirgends was dazu finden.

Gruß Chris

Beer Maker Builds a Raspberry Pi Tap List for His Home Brews #piday #raspberrypi @Raspberry_Pi

Posted: 15 Feb 2013 01:00 AM PST

Raspbeery

A great story about a hobbyist, a Raspberry Pi, some Linux tutorials, and some … beeeer! From WIRED Design:

The Raspberry Pi has a reputation for being beginner-friendly, but even slightly buzzed hackers have been able use the mini microprocessor to improve their microbrews. Now one tinkerer is using his board, plus a 7-inch Sony touchscreen and a little PHP coding as the perfect high-tech setup for for his home-brew tap list.

Created by a hobbyist beer maker who goes by the name "SchrodingersDrunk," the setup can give a garage operation the high-end brewpub makeover for about $35. And while the project's creator wants to keep his identity secret, he has shared the code on GitHub….

While there aren't many write ups on creating a beer board, the Raspberry Pi that Schrodinger chose as the brain of the project runs Linux, which offered him loads of PHP and Python tutorials as well as a dedicated community that loves debugging offbeat projects. Beyond that, he relied on tenacity and online research. "As a non-coder, non-graphic designer getting a website built that is visually appealing and easy to edit from anywhere was quite the task," he writes. "Really, my strength lies in having strong 'Google-fu' and being able to adapt working snippets of code to my particular needs."

Re: Rotary encoder together with arduino for measuring angle

Posted: 15 Feb 2013 12:55 AM PST

Absoloute rotary encoders are expensive, I would suggest what you need here are three simple tilt switches mounted at the appropriate orientation.
Otherwise go for an accelerometer.

Re: DS1307

Posted: 15 Feb 2013 12:54 AM PST

MERCI pour ces réponses!

Bon y reste pas mal de truc à débroussailler encore mais je comprend un peu mieux des petits truc qui me coince.

Une phrase ma interpellé celle-ci:

Quote

Le DS1307 est particulier dans le sens où se serait ridicule d'avoir plu...

Modify sketch to accommodate second light sensor

Posted: 15 Feb 2013 12:52 AM PST

Hi,
I have not been able to modify this code, originally contributed by Rob Tilllaart, to add a second TSL235 light sensor. In the program, digital pin 2 is counting rising edges of a square wave signal input for one second, with attachInterrupt, then ...

Uploading a file from st card to FTP server

Posted: 15 Feb 2013 12:49 AM PST

I am just wondering what is the best/easiest way of uploading a file to an FTP server using the SDfat Library

what I would like to do is upload a log text file that stored in the root of the SD card and is name for eg (unit 1000 / month02/ day15) 1000...

Re: Impulsi radio - radio pulsanti

Posted: 15 Feb 2013 12:49 AM PST

ok però lui non vuole mettere un arduino per ogni telecomando, o compri 5 telecomandi e ad ognuno fai registrare un tasto ad arduino oppure costruisci un cirucitino per ogni pulsante formato da un led ir e qualcosa per modularne l'impulso(credo che il ...

Re: Controller des leds avec une radio 2.4ghz

Posted: 15 Feb 2013 12:15 AM PST

Quote from: UniseV on February 14, 2013, 06:34:26 AM

Belle performance...

Je n'ai qu'une vidéo, et c'est celle de mon EPPIM en FPV :
<param name="movie" value="http://www.youtube.com/v/-s5fSU2Hqk4

Re: inviare parole ad Arduino in rete

Posted: 15 Feb 2013 12:15 AM PST

A naso, senza vedere il tuo codice, mi sa che non usi il confronto giusto fra le stringhe.
Il C non è Basic. I basic puoi fare

If val$="accendi" Then

non in C.
Se usi come stringa un array di char, e fai
if(arrchar=="accendi")
viene fatto il co...