Arduino by Davis: “primi passi...” plus 19 more

primi passi...
Re: Wave/mp3player+15 led scanner on a 328p-pu?
Re: Boolean memory size
Re: demultiplexer inputs
Re: Boolean memory size
Re: Zwei Arduinos Seriell verbinden
Re: Intel Hex Format
Re: Write in the eerpom of ArduinoUno a code RFID (ID20)
Re: Funzione GET x prendere valori dall'url di una pagina HTML
Re: leggere stringa da serial monitor
Re: IR Led
digitalPinHasPWM on the due?
Re: How to use Arduino 1.5.2 on Debian Wheezy 64bit?
compiling but not working
Re: Primo esperimento - arduino bloccato
Re: (Help)My Ethernet Shield suddenly stopped working
Re: leggere stringa da serial monitor
Re: iComSat v1.1 HELP
Re: Pilotare Motorino Hard disk
Re: standalone arduino - MOSFET PWM

Posted: 24 Mar 2013 03:15 AM PDT

Salve amici,
da qualche giorno sto iniziando i miei primi esperimenti con arduino, per quanto riguarda la parte Hardware non sto trovando molte difficoltà, ho un pò di problemi con la programmazione.

Sto cercando di creare un semplice codice che attivi...

Re: Wave/mp3player+15 led scanner on a 328p-pu?

Posted: 24 Mar 2013 03:12 AM PDT

I'm still trying to get to grips with the various code but, Cant the tlc5940 be triggered but having the arduino just out put this one line after the other?
[code]
1,1,1,1,1,1,1,2,1,1,1,1,1,1,1; Step 1
1,1,1,1,1,1,2,3,2,1,1,1,1,1,1: Step 2
1,1,1,1,1,2,...

Re: Boolean memory size

Posted: 24 Mar 2013 03:11 AM PDT

Try something like:

Serial.print(sizeof(boolean));

This will print the number of *bytes* used for booleans.

Re: demultiplexer inputs

Posted: 24 Mar 2013 03:10 AM PDT

How many loads are you trying to drive, and what type of loads are you trying to use? You probably need some combination of a demux/switch and a power amp, but there are combined single chip solutions that may suit you.

Re: Boolean memory size

Posted: 24 Mar 2013 03:08 AM PDT

A boolean takes up one byte in C++ (zero or not zero for false/true); you can use bit fields in C/C++ that take up single bits; eight of them (one bit each) take up a single byte again.

kind regards,

Jos

Re: Zwei Arduinos Seriell verbinden

Posted: 24 Mar 2013 03:07 AM PDT

Hallo Jurs,

danke schonmal für die Info.

Hab das mal so angepasst:

Sender:

Code:

void setup()
{
  Serial.begin(9600);
}

void loop()
{
  // send data
  Serial.print(0b11010101);
  delay(1000);
}

Empfänger:

[code]
byte val;

void setup()
{
Serial...

Re: Intel Hex Format

Posted: 24 Mar 2013 03:06 AM PDT

Quote from: Addi on March 23, 2013, 04:54:24 PM

Bei Arduinos liegt der Vorteil darin, dass nur eine Textdatei für avrdude erzeugt werden muss,
und kein Nativer Code wie bei einem "echten" Compiler, z.B. gcc.

Die Dat...

Re: Write in the eerpom of ArduinoUno a code RFID (ID20)

Posted: 24 Mar 2013 02:49 AM PDT

Hello, thanks everyone for help me..

it's a resume:
I have an ArduinoUno + ID20 and I am trying:
- Turn on a led(pulse-pin13) when a tag1 is read and then save it in EEPROM in position 10 to 29 (it is ok

)
- when a second tag2 is read save it in EE...

Re: Funzione GET x prendere valori dall'url di una pagina HTML

Posted: 24 Mar 2013 02:45 AM PDT

Ti allego i file della classe, almeno è meglio per te.

Quando poi nello scheck la richiamo scrivo questo:

#include <EEPROM_TCP_IP.h>
......
.....
EEPROM_TCP_IP eeprom_tcp_ip;

richiamo la funzione:
eeprom_tcp_ip.tcpSetup(ArrayTCPIP);

Ma mi genera quest'...

Re: leggere stringa da serial monitor

Posted: 24 Mar 2013 02:44 AM PDT

Quote from: leo72 on Today at 04:03:14 AM

Quote from: MauroTec on March 23, 2013, 07:54:48 PM

Quote

caricare il tutto su una stringhetta e lavorarla non vi piace?

Si mi piace. Però...

Re: IR Led

Posted: 24 Mar 2013 02:42 AM PDT

To Runaway Pancake:

I'm using this LED http://www.datasheetcatalog.org/datasheets2/94/94284_1.pdf

I have this one with a 100 ohm resistor.

To mjkzz:

Looking around I saw that the MOSFET could be a solution, but I had not a clue how to implement it and...

This posting includes an audio/video/photo media file: Download Now

digitalPinHasPWM on the due?

Posted: 24 Mar 2013 02:38 AM PDT

The macro digitalPinHasPWM seams to be missing on Arduino 1.5.2

Can it be defined for the due?

Re: How to use Arduino 1.5.2 on Debian Wheezy 64bit?

Posted: 24 Mar 2013 02:06 AM PDT

Quote from: cmaglie on March 20, 2013, 06:13:47 AM

probably installing the "ia32-libs" debian package may solve the problem.
@OutOfLine, please confirm if this fix works for you.

unfortunately no, aptitude leaves me...

compiling but not working

Posted: 24 Mar 2013 02:06 AM PDT

hello,
I'm trying to develop a small, led-based, reaction time test.
The code compiles, but nothing happens.
I'm sure that the setup is correct, with leds and buttons etc. each at the right place...
I have three buttons and three leds.
One button to e...

Re: Primo esperimento - arduino bloccato

Posted: 24 Mar 2013 02:05 AM PDT

ok provo a fare un programmino per vedere se i tasti funzionano, il display è saldato sulla shiled!!

Re: (Help)My Ethernet Shield suddenly stopped working

Posted: 24 Mar 2013 02:03 AM PDT

Try this test code. It checks the SPI connection to the ethernet shield. If the IP shows in the serial monitor as 192.168.2.2, then that part is working. If it shows anything else, like 0.0.0.0, then that part is failing. Check the pins (especially the...