domingo, 3 de febrero de 2013

Arduino by Davis: “LED Steplight” plus 19 more

Arduino by Davis: “LED Steplight” plus 19 more

Link to Arduino by Davis

LED Steplight

Posted: 03 Feb 2013 01:58 AM PST

Two weeks ago I've finished a LED-Strip based Steplight for friends of mine.
It's based on a standalone Atmega328 running at 16MHz driving 2 ULN2803A for the 14 LED-Strips. The complete installation is driven by a 9V / 1A powersupply, consuming only 6...

Re: ***** SurferTim has been banned? *****

Posted: 03 Feb 2013 01:58 AM PST

Hooray!! I'm not banned any more, at least on my Linux box. My Windows box will not login with the banned message, but that may be a cache issue.

Re: suche rat für herstellung einer (rest)reichweitenanzeige für elektrofahrzeug

Posted: 03 Feb 2013 01:57 AM PST

Zunächst eine Frage wie gut bist du in Elektronic? Du musst für eine vernünftige Messung sowohl Strom als auch Spannung des Akkus messen können. Und da wir hier von 72Vdc reden ist dies hier auch schon gefährlich.
Ich würde alles auf Wattsekunden rechn...

Re: Problema con Arduino Due

Posted: 03 Feb 2013 01:55 AM PST

Cosa intendi x " Hai dato i permessi per il tuo utente per poter scrivere sulle porte seriali?"


-il software lo scaricato da  :  http://translate.google.it/translate?hl=it&sl=en&u=http://www.arduino.cc/&prev=/search%3Fq%3Darduino%26hl%3Dit%26client%3Du...

Re: RTC gestion du temps

Posted: 03 Feb 2013 01:51 AM PST

Re: 24v Input with critical mA limits

Posted: 03 Feb 2013 01:20 AM PST

If you are feeding the input directly to the Arduino digital input, then all you need is a 220K resistor in series with it. The pin protection diode in the Arduino will clamp the voltage to around 5.6V and the 220K resistor will limit the input current...

Re: Need some pointers on some code

Posted: 03 Feb 2013 01:14 AM PST

Thanks guys I got my switch to work  smiley

Sorry for all these basic questions but I suffer with dyslexia so takes me a bit of time.
always willing to ask and learn tho.

Iv added in a fade on the 7 segment with the help of  opensource hardware junkies.com...

Re: 2.8" TFT interface with atmega328

Posted: 03 Feb 2013 01:11 AM PST

I have downloaded the code from the link mentioned below.

http://www.ladyada.net/products/tfttouchbreakout/#connection_options

Once you go to the page there is a download option at the end of the page. I downloaded the Touch screen library, TFT LCD lib...

Re: Help in programming the Atmega1284 with maniacbug-mighty-1284p.

Posted: 03 Feb 2013 01:10 AM PST

In sec 9.4 of the 1284P d/s, it says the following, so maybe using it is the solution,
Quote
9.4 Full swing Crystal Oscillator
This Crystal Oscillator is a full swing oscillator, with rail-to-rail swing on the XTAL2 output. This is
useful for driving ...

Re: Energy saving question and RTC DS3234 Alarms

Posted: 03 Feb 2013 01:09 AM PST

That info Is on the same page - http://www.gammon.com.au/forum/?id=11497 - search for "Waking from sleep with a timer"

Re: suche rat für herstellung einer (rest)reichweitenanzeige für elektrofahrzeug

Posted: 03 Feb 2013 12:59 AM PST

hallo dani!
vielen dank auch an dich für deine ideen!!
eine energierückgewinnungsvorrichtung ist im fahrzeug nicht verbaut.

sollte ich mir alle rechenvariablen als kennfelder igendwie irgendwo ablegen und arduino holt sich dann seine faktoren aus diese...

Re: suche rat für herstellung einer (rest)reichweitenanzeige für elektrofahrzeug

Posted: 03 Feb 2013 12:54 AM PST

Hallo,

bei einem LiPo Akku lässt sich die Restkapazität Anhand der lastfrei gemessenen Akkuspannung ermitteln. So kann man sich das Strommessen sparen und Temperratureffekte müssten somit schon berücksichtigt sein.

Re: Help with Mayhew Labs Mux Shield

Posted: 03 Feb 2013 12:52 AM PST

Think you should have a good look at your digitalWriteMUX() code, it misses something smiley-wink

Additional you can extract the pin selection code, see below
[code]
int digitalReadMUX(int pin)
{
    selectMUXPin(pin);
    return (!digitalRead(14));
}

int digit...

Re: suche rat für herstellung einer (rest)reichweitenanzeige für elektrofahrzeug

Posted: 03 Feb 2013 12:45 AM PST

Wieso so kompliziert mit dem abschätzen der Reichweite. Du nimmst den aktuellen Verbrauch und mittelst den mit den also der neuer Wert des "Stromverbrauch" hat nur 20% Einfluß auf den Stromwert den du bisher hast somit machen kurze aussreisser nichts a...

Re: Lie Detector

Posted: 03 Feb 2013 12:44 AM PST

I'm not sure that this thread was very kind or welcoming to the newbie that initiated it.  Have we been as hospitable as we could to someone coming here asking for help? 

Jus...

XBee.api: easy way to send a variable size of payload?

Posted: 03 Feb 2013 12:30 AM PST


Hello,

I use this API with my XBee Serie 1: https://code.google.com/p/xbee-arduino/

I want to optimise the size of the payload sent. According what I send, I need to send only a payload of 10 bytes, or 15 bytes, or ...

I didn't find an easy way to do ...

Re: Xbee Series 2 Unicast to Multiple Units

Posted: 03 Feb 2013 12:29 AM PST

Hi,

Thanks for the reply!

@PaulS: I understand what you mean. I've yet to test that and will test it on Monday back in school. I'll post again the results without cyclic sleep. =)

@draythomp: It's my pleasure to help provide info. =) I'm trying to "bro...

Protolight: prototipo per gestire l'illuminazione da remoto

Posted: 03 Feb 2013 12:28 AM PST

Salve a tutti,
ho creato un piccolo prototipo per gestire l'illuminazione da remoto grazie ad arduino, Java e android.

1. Su arduino ho sviluppato tutta la parte server che riceve le richieste dai client che si connettono, gestisce gli eventi dei clien...

Re: Playing MP3/WAV/audio files from an Arduino

Posted: 03 Feb 2013 12:27 AM PST

>1.  Can this be done?
Yes
>2.  Would I need to use a DAC?
No, The arduino is not powerful enough to decode wav or MP3
>3.  Would it then be possible to amplify the analogue signal to output into speakers?
Yes you can use any amplifier.

There are some ...

Re: Permanent proto shield installation

Posted: 03 Feb 2013 12:26 AM PST

Dumb and obnoxious.  It probably took 30 seconds to solder on all the components on the board.  It took me over 30 minutes to remove the 2 digital I/O headers and clear the solder from the through holes.  Granted a big part of that was my cheapo Radio ...
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