Arduino by Davis: “Re: Alimentación data logger arduino MEGA” plus 19 more

Re: Alimentación data logger arduino MEGA

Posted: 11 Apr 2013 03:51 AM PDT

Hola, yo estoy intentando hacer lo mismo que tu pretendes hacer, uso un duemilanove y compre dos de estos supercap que la verdad que con uno que son de 4f con el consumo del arduino y la plaquita de una controladora l298+l297 para motores paso a paso, ...

Re: Why won't interrupts fire?

Posted: 11 Apr 2013 03:50 AM PDT

For a start do not try to use Serial in the interrupt code.

Re: glcd from dx.com

Posted: 11 Apr 2013 03:49 AM PDT

Ok, i see your problem. Nevertheless: Please measure the voltage at Vout. If it is negative you will probably need two suitable resistors to get the correct negative voltage which must be applied to v0.

In general: By applying some different voltage, y...

Re: Multi tâche avec arduino UNO R3 - Scheduler ??

Posted: 11 Apr 2013 03:49 AM PDT

Utilise un client SVN (subversion) tel que TortoiseSVN pour windows et télécharge le code source directement depuis les serveurs du projet :
http://code.google.com/p/duinos/source/checkout

Ensuite tu suit la procédure de base.
Le fichier boards.txt act...

Re: help svp pour creer une boucle avec comparaison a un int

Posted: 11 Apr 2013 03:46 AM PDT

Bonjour,

Il faudrait revoir les bases du C

Code:

for(int i = 0; i < 30; i++) {
// Le code à répéter 30 fois
}

Re: Arduino Ethernet e valori falsificati

Posted: 11 Apr 2013 03:11 AM PDT

Io mi riferivo alla ram non alla flash, le variabili pin possono essere messe nel setup e risparmia 12 byte, le altre 15 var dichiarate come int le potrebbe modificare in byte recuperando altri 15 byte.

Purtroppo negli esempi c'è il brutto vizio di met...

Re: Calcolare la distanza percorsa con il GPS,va bene così ?

Posted: 11 Apr 2013 03:08 AM PDT

Quote from: ratto93 on Today at 04:47:30 AM

Quindi a rigor di logica se programmo il micro con le stesse lib però su AVR studio scavalco il problema ?
Non uso la due per due motivi

primo non l'ho ancora presa, seco...

Re: ABC - Arduino Basic Connections

Posted: 11 Apr 2013 03:07 AM PDT

Quote from: PaoloP on Today at 05:05:00 AM

Potresti fare anche una scheda per i valori delle resistenze SMD.

Anche se credo siano poco utilizzate dai maker occasionali.

Infatti.
Ho in cantiere una serie ...

help svp pour creer une boucle avec comparaison a un int

Posted: 11 Apr 2013 03:07 AM PDT

bonjour
je debute avec l arduino
j expose mon probleme : je voudrais commander 4 relais de la facon suivante
-etat initiale : tous les relais au repos
-appuie sur un BP : le relais 1 passe a 1 pendant 1 minute
au bout de 1 minute l...

Re: Debounce a push button

Posted: 11 Apr 2013 03:05 AM PDT

Thanks for the edit

Oculus Rift Teardown

Posted: 11 Apr 2013 03:00 AM PDT

While not "3D printing" as much as "3D," this teardown of a developers Oculus Rift kit is nonetheless equally exciting — have yesterdays' dreams of virtual reality headsets finally been solved for the contemporary world? Check out the iFixit Oculus Rift Teardown!

Let's face it, the year is 2013. Where are our flying cars? Why isn't deep space travel a thing yet? Why hasn't virtual reality become, well, reality? The Oculus Rift seeks to fill that lack of virtual reality in our lives. Still in its early developmental stage, the Oculus Rift promises to deliver VR gaming to the yearning public. Join us as we take a peek inside the Oculus Rift and its hardware.
Step 1 — Oculus Rift Teardown

Before we begin, we want to make it clear that this is the developer edition of the Oculus Rift, included in the developer kit. It is essentially an early prototype of the consumer version.

While not much is known in terms of tech specs, here's what we've gathered so far:

Resolution of 1280 x 800 pixels, with 640 x 800 per eye.

Horizontal Field of View greater than 90 degrees.

Diagonal Field of View greater than 110 degrees.

Head tracking accomplished with 1000 Hz absolute 9DOF orientation sensor (includes gyroscope, accelerometer, and magnetometer).

Currently available for PC only.

We also found out it comes in a handy case that holds over one billion cables/adapters (our professional estimate)….

Read the complete teardown at iFixit.
OculusRiftInside

Re: Cheapest way to Program Arduino?

Posted: 11 Apr 2013 02:41 AM PDT

I don't have your shield or GPS.

But to make examples from different programs together you must first understand line by line how each works.

SD must first initialize the card.
Then open a file. -- I think that SDFat lets you have multiple open files.....

GPS module and Ethernet ENC28J60 on Atmega328

Posted: 11 Apr 2013 02:41 AM PDT

Hi. I start to make simple project for telemetric data for my RC car. I make core on Atmega328P-PU(http://www.hobbytronics.co.uk/image/data/tutorial/arduino-hardcore/atmega328-arduino-pinout.jpg) .
I connect ENC28J60 to 10,11,12,13 pins of atmega.
I ...

SoftwareSerial Signal FIFO

Posted: 11 Apr 2013 02:40 AM PDT

Hello,

I am reading information from an Maxbotix LV-WR1 through a SoftwareSerial connection.

Unfortunately, the result is delayed. I guess that I only read the next Data transmitted but not the last.

Here is the part of my software where I am re...

Re: Audio out with Due

Posted: 11 Apr 2013 02:39 AM PDT

Hello,
Just put the DAC1 output of your Due to the + of your amplifier, and the - to the ground. You can put a 500 Ohm resistor between DAC1 and amplifier to be sure not to harm your Arduino.
If you want to make a sine wave out, look at RC Arduino : ht...

Re: ArduinoDue Scheduler

Posted: 11 Apr 2013 02:39 AM PDT

Lo scheduler inserito nell'Arduino Due è di tipo cooperativo, significa che il SO non esegue nessun controllo sulla durata di un task ed il passaggio da un task all'altro è lasciato al programmatore.

Lo scheduler della Due si basa su un delay modificat...

Arduino goes to Shenzen: the Hollywood of hardware products

Posted: 11 Apr 2013 01:29 AM PDT

Last week-end we just had a good time at the Maker Faire of Shenzen, hosted in the wonderful OCT District.
We were invited by Eric Pan from Seeedstudio (thanks Eric for the good time!). The Maker Faire has been a priceless experience to get in touch with the chinese maker community, as well as networking with different Chinese and Chinese-based maker companies creating interesting contents & products.

We finally inaugurated our very first official Weibo account, and shared chinese materials about Arduino. You could come and play with the Esplora as well as code your very own interface, Thanks to our friend Federico Musto and Anna Kao for the help. and Maling and Terry who volunteered for us in the booth giving Arduino goodies and pins to a ton of interested chinese makers and curious. Zack Smith, working now in the HAXLR8R, joined us for some help to test his chinese language. There has been many speeches and presentations (as well as an Arduino workshop held by Guo Haoyun, the chinese translator of Getting Started With Arduino), and all of a sudden I understood I have to learn chinese (!).

The guys of Haxlr8r showed us their cool creations: Haxlr8r is a startup incubator taking cool ideas and startups from around the world and helping them developing and fine tuning their own product (solve all the puzzles in developing a project, 3 to 6 month) for production here in China. They are based closed to the world famous SEG Electronics Market, widely portrayed from Bunnie Wang in this post and from Evil Mad Scientist here.

On Sunday (totally drained out from the previous day) we teamed up with the Trasfabric "Hacked Better" workshop, we visited Chaihuo Makerspace in OCT where Tom Igoe, Zack Hoeken Smith, Gao Lei, Eric Pan (Seeedstudio) talked about maker movement and DIY culture in China, with Silvia Lindtner (ISTC & Fudan University) and Anna Greenspan (NYU Shanghai), organizers of the workshop.
I had the cool opportunity to sit back and listen to many interesting facts and odd metaphors, joining the informal panel. The main idea which came out is looking at the city of Shenzen like the place to be for producing (open) hardware right now, perfectly represented in a cool metaphor of Eric:
Shenzen is the Hollywood of hardware products, where big companies are just like the big Majors: that's where independent, low-budget movies come out. (movies = products, boards).
Zack and Eric, as well as Tom, talked about the the value of Brand, both as Market Identity and Responsibility. Zack: It looks a bit like a recipe. Hambuger. Everybody makes an hamburger. You can go to McDonald / Burger King or in the finest place. You can make it yourself. What are you hungry for? Basically open sour(c)e hardware can get everybody be the very personal cook of themselves, or at least acknowledges, with different tools and know-hows, the audience (maker movement, kids, any of us).
What are you hungry for?
P.S. please keep an eye on the Transfabric blog to a more comprehensive and less informal sum-up of the workshop, I'm just the one who loves Cinema, Hamburger and Open Source Hardware.

Re: Mouse.move macht Probleme oder habe ich einen Denkfehler ?

Posted: 11 Apr 2013 02:07 AM PDT

Quote

Alles darüber wird zu -128 bzw 127

Nein, "schlimmer" :

byte x = 300; ist das gleiche wie byte x = 172;

char x = -300; ist das gleiche wie char x = -44;

--> Überlauf wird abgeschnitten. Bei Bytes : 256 == 0 , oder --mit Vorzeichen-- ...

Re: Costruire un Segway con Arduino

Posted: 11 Apr 2013 02:07 AM PDT

Buongiorno a tutti, sono uno studente del corso di Industrial Design allo IED di Torino.
Ho cominciato la mia tesi con Alstom, azienda francese specializzata nel trasporto ferroviario, il briefing chiedeva una bicicletta pieghevole per il loro treno (...

ArduinoDue Scheduler

Posted: 11 Apr 2013 02:06 AM PDT

Ciao a tutti,

ho inserito la libreria http://arduino.cc/en/Reference/Scheduler nel mio progetto,
ma non ho capito come interagisce con il loop (main) e gli altri task.

ho notato che se eseguo un progr...