Arduino by Davis: “Re: Projet d'un héliostat pour un débutant” plus 19 more

Re: Projet d'un héliostat pour un débutant

Posted: 17 Dec 2012 01:31 AM PST

oui, mais c'est bien plus compliqué niveau calculs, et ça ne tient absolument pas compte de l'albedo (réflexion sur les nuages et l'environnement) et de l'environnement direct des capteurs (ombres portées par exemple) et donc ça ne maximise pas réellem...

Re: Controlling 172 electromagnets with bipolar option

Posted: 17 Dec 2012 01:31 AM PST

8 x 34 = 272

Re: Need recommendation on remote debug and data collection

Posted: 17 Dec 2012 01:27 AM PST

This article may be of interest http://www.ladyada.net/make/xbee/arduino.html

Re: help connecting Arduino UNO to n-ch MOSFET via Optocoupler

Posted: 17 Dec 2012 01:27 AM PST

Quote from: Grumpy_Mike on December 16, 2012, 06:54:32 PM

Quote

I did not know what exactly grumpy_mike meant with collector, so I looked on Wiki and saw that its the drain.

Wehe I said the collector I meant the colle...

Re: Help arduino nano quartz Crystal

Posted: 17 Dec 2012 01:27 AM PST

Quote from: Arduino99 on December 15, 2012, 09:34:39 PM

Ok if some people are having trouble here:
Its a arduino nano R3
I DO have a pencil Soldering iron with some soldering skills(if i cannot solder part i know someone who ca...

Example had a wrong name (02.Digital/DigitalInputPullup)

Posted: 17 Dec 2012 12:37 AM PST

+ build/shared/examples/02.Digital/DigitalInputPullup/DigitalInputPullup.ino

Example had a wrong name (02.Digital/DigitalInputPullup)  Fixes #1074

Add trivial new[] and delete[] operators (Justin R. Cutler)

Posted: 16 Dec 2012 05:30 AM PST

m hardware/arduino/cores/arduino/new.cpp  m hardware/arduino/cores/arduino/new.h

Add trivial new[] and delete[] operators (Justin R. Cutler)  Fixes #73  Fixes #883

Merge remote-tracking branch 'arduino/master'

Posted: 16 Dec 2012 05:18 AM PST

m libraries/Esplora/examples/EsploraTable/EsploraTable.ino

Merge remote-tracking branch 'arduino/master'

Fixed malloc() bug. (Paul Stoffregen)

Posted: 16 Dec 2012 05:16 AM PST

+ hardware/arduino/cores/arduino/malloc.c

Fixed malloc() bug. (Paul Stoffregen)  Fixes #857

Another Super Blinky Custom LED Christmas Tree

Posted: 17 Dec 2012 01:00 AM PST

We have seen plenty of LED Christmas trees this year, but this one is a bit unique. Instead of wrapping LEDs around a tree (or in the shape of a tree), Andrew cut a tree shape out of MDF, and filled it with Adafruit LED Pixels.

I imagine I'll be adding to the animations over the holidays and will hopefully get some video of the tree in action. In the meantime it'll be accompanying me on my holiday traveling and visiting.
I'm happy w/ the crafty look of the tree as it reminds me of a wooden tree my mom made for me some years back with traditional incandescent string lights. Next year I'll start work earlier on some fancy laser-cut versions

RGB Pixels are digitally-controllable lights you can set to any color, or animate. Each RGB LED and controller chip is molded into a 'dot' of silicone. The dots are weatherproof and rugged. There are four flanges molded in so that you can 'push' them into a 12mm drill hole in any material up to 1.5mm/0.06″ thick. They're typically used to make outdoor signs. We also have flat-backed pixels that are essentially the same, but are not as long and thin.
In Stock and Shipping Now

Re: wireless alarm laptop

Posted: 17 Dec 2012 12:58 AM PST

hi ybl84f1, thanks for the comment. i have tried using both xbee on API mode.( 1 end device, the other coordinator) and also i enable both API 2 mode. but still is not communicating in the terminal tab

. the configuration is at the attachment, i am n...

Re: Latching an output high. #[code] [/code]

Posted: 17 Dec 2012 12:58 AM PST

For example the whole of you setup function could be;-

Code:

void setup(){
for(int j = 0; j<7; j++){
pinMode(j,INPUT);
pinMode( j+7,OUTPUT);
}
}

Array led 4pin catodo comune

Posted: 17 Dec 2012 12:53 AM PST

Buongiorno a tutti!

Seguo da tempo il forum ma non ho mai avuto occasione di scrivere.. Vorrei ringraziarvi perchè il forum è una vera e propria bibbia di elettronica/software e mi hanno permesso di imparare veramente moltissimo!

Il problema che ho è q...

Re: How to read data from a 3.5mm headphone hack?

Posted: 17 Dec 2012 12:47 AM PST

I only managed 2.7 million hits for "TI84 Serial Interface", but I still haven't got to the end of them.

Re: ATMega 328P-PU on Breadboard with PL2303 USB>Serial

Posted: 17 Dec 2012 12:45 AM PST

The following link show how to auto upload, but I have no luck with that.

http://www.xappsoftware.com/wordpress/2012/...

"Hypethreading"

Posted: 17 Dec 2012 12:26 AM PST

Hey,

Is it's possible to have multiple C "subthreads"? If no, why not?
I know it is not a hardware feature ;-)

I would like to run a display, analog input and some serial data (temp&humidity sensor) every 0.2 s at the same time, without a big delay.

Controlling 172 electromagnets with bipolar option

Posted: 17 Dec 2012 12:26 AM PST

Hi,

I am a beginner in electronics and I need help on my project.

I am working on a project for which it's required to control 172 (8x34 matrix) electromagnets which are self made, the current drawn each electromagnet is 250 mA on 12 v power supply, I ...

Re: MENWIZ: yet another character lcd menu wizard library

Posted: 17 Dec 2012 12:26 AM PST

Quote from: brunialti on December 16, 2012, 02:38:36 PM

@khalid
the addVar method adds to the current _menu object a variable by a pointer setting. if you repeat the addVar method with the same _menu object the latest pointer is...