Arduino by Davis: “Re: Double Modulo” plus 19 more

Re: Double Modulo
Re: [Tuto] ds1307 Arduino Processing mise à l'heure NTP
Re: expected unqualified id before 'if'
Int to char*...
Re: Help using templates.
Re: Arduino UNO R3, replace 328 or the entire board?
Re: Pilotare cella di Peltier a 15A
Re: IR Sensors Read, Compare, and Output Code?
Re: Arduino UNO R3, replace 328 or the entire board?
Re: Diodo Led Laser
Re: Ventola Per simulare il vento in Laboratorio
Re: Chinese Pcb Manufacturer Reccomendation.
Re: Timer Interrupts on Due
Re: Arduino UNO R3, replace 328 or the entire board?
Re: Help with Sketch
DIY Rodarte-Style Illuminated Pumps #WearableWednesday
Re: Working with Relay Brick
Re: Building an addressable LED strand with WS2801 (custom pcb)
Re: shifter register
Re: 16x2 lcd

Re: Double Modulo

Posted: 28 Nov 2012 01:14 AM PST

danke mit long funktioniert es.

Re: [Tuto] ds1307 Arduino Processing mise à l'heure NTP

Posted: 28 Nov 2012 01:13 AM PST

Bonjour,
deja pour commencer je ne metrise pas vraiment la creation de programme pour l'arduino mais en glanant de droit et de gauche j'arrive a metre en place des programmes qui fonctionne et dans le cadre de mon projet pour controler la temperature ,...

Re: expected unqualified id before 'if'

Posted: 28 Nov 2012 01:11 AM PST

Code:

for (i = 0; i <= x-2; i++)
{
vitread[i] = Serial.read();
}
vitesse = atoi(vitread);

atoi takes a null-terminated string; is your string null-terminated?

The IDE has a handy-dandy fe...

Int to char*...

Posted: 28 Nov 2012 01:10 AM PST

I am having some problems at conversing formats.

I have a function(getFecha()) (non created by me but I have to use it) which returns timestamp in char*. This is the format:

year, month, date, day, hour, minute, second

09:10:20:03:17:35:00

And I want ...

Re: Help using templates.

Posted: 28 Nov 2012 01:10 AM PST

He's trying to send the compiler into a loop.

Re: Arduino UNO R3, replace 328 or the entire board?

Posted: 28 Nov 2012 12:37 AM PST

I think it might have been digital pin 7 or 8.

Re: Pilotare cella di Peltier a 15A

Posted: 28 Nov 2012 12:37 AM PST

Come ha affermato il buon Uwe non conviene accendere e spegnere l'alimentatore.

Io aggiungo che toglieresti energia anche alla pompa di raffreddamento che, invece, è bene che sia sempre in funzione.

Re: IR Sensors Read, Compare, and Output Code?

Posted: 28 Nov 2012 12:34 AM PST

Quote

could result in a negative numbers and thus greatly changing the indifference in comparison.

Difficult to see how the result of an abs operation could return a negative value, but I'm ready to be surprised.

Re: Arduino UNO R3, replace 328 or the entire board?

Posted: 28 Nov 2012 12:33 AM PST

Which pin did you short, do you think?

Re: Diodo Led Laser

Posted: 28 Nov 2012 12:28 AM PST

Quote from: Iz2rpn on November 27, 2012, 05:28:23 PM

ratto93: Direi di creare un post dedicato hai laser in megatopic

Potremmo aprire un topic dedicato interamente alla costruzione di quella macchinetta, no ?
così poss...

Re: Ventola Per simulare il vento in Laboratorio

Posted: 28 Nov 2012 12:23 AM PST

Ho comprato alla METRO un ventilatore con telecomando ad IR che tra le altre funzioni ha proprio quella del "vento".

In pratica, ha tre velocità fisse e se si imposta la velocità più alta, premendo il tasto "wind" cicla qualche secondo su ogni velocità...

Re: Chinese Pcb Manufacturer Reccomendation.

Posted: 28 Nov 2012 12:20 AM PST

There are plenty of Chinese fabrication houses. Personally I use iTeadStudio which gives me 10 boards at 5cm x 5cm for $9.90 (for all ten). Or 10 boards of 10cm x 10cm for $24.90 (for all ten). A similar one would be SeeedStudio, same prices.

Re: Timer Interrupts on Due

Posted: 28 Nov 2012 12:18 AM PST

Quote

Thank you for your detailed answer.
Can somebody explain the following code?
I want to use it to execute a function after every XY CPU counts:

TC_Configure(tc, channel, TC_CMR_WAVE | TC_CMR_WAVSEL_UP_RC | TC_CMR_TCCLKS_TIMER_CLOCK4);
...

Re: Arduino UNO R3, replace 328 or the entire board?

Posted: 28 Nov 2012 12:17 AM PST

Yes, I select COM8 at Serial Port and Arduino Uno at Board.

Re: Help with Sketch

Posted: 28 Nov 2012 12:13 AM PST

Okay, thanks I didn't know

DIY Rodarte-Style Illuminated Pumps #WearableWednesday

Posted: 28 Nov 2012 12:00 AM PST

diyrodarteshoes

Instructables user SwitchGirl writes:

After seeing Rodarte's light-up heels, I decided to make some for myself. The task seemed simple enough. I was able to make a slipcover for the heel of my shoe with embedded light. I used the LED sequins from Aniomagic. The battery pack is from Switch Craft, the materials below account for this. You can use a different battery holder if you like, both Aniomagic and Lilypad's battery holders work well.

diyrodarteshoesillo

Every Wednesday is Wearable Wednesday here at Adafruit! We're bringing you the blinkiest, most fashionable, innovative, and useful wearables from around the web and in our own original projects featuring our wearable Arduino-compatible platform, FLORA. Be sure to post up your wearables projects in the forums or send us a link and you might be featured here on Wearable Wednesday!

Re: Working with Relay Brick

Posted: 27 Nov 2012 11:44 PM PST

ah, I get it. okay then. so can i use transistor for 220v ac lamp? I understand that it's okay to use it for a 12v dc one.

Re: Building an addressable LED strand with WS2801 (custom pcb)

Posted: 27 Nov 2012 11:40 PM PST

Can I ask what this is for? 90 pixels of 6 LEDs each, each LED potentially up to 100mA, that's 54 Amps. Not knowing what this is for, I can't decide whether this is over kill in brightness or what. But, as a comparison, I created a 160 pixel display...