viernes, 15 de marzo de 2013

Arduino by Davis: “Replacing Google Reader with a Raspberry Pi #piday #raspberrypi @Raspberry_Pi” plus 19 more

Arduino by Davis: “Replacing Google Reader with a Raspberry Pi #piday #raspberrypi @Raspberry_Pi” plus 19 more

Link to Arduino by Davis

Replacing Google Reader with a Raspberry Pi #piday #raspberrypi @Raspberry_Pi

Posted: 15 Mar 2013 03:00 AM PDT

TTRSS

With all the talk about the upcoming end of Google Reader, here's a project to replace the app with a Raspberry Pi! Tiny Tiny RSS running on a RasPi:

Tiny Tiny RSS now running beautifully on my Raspberry Pi (using NGINX, PHP-FPM, MySQL):

Read more.

998Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new "Adafruit Raspberry Pi Educational Linux Distro" ? It's our tweaked distribution for teaching electronics using the Raspberry Pi. But wait, there's more! Try our new Raspberry Pi WebIDE! The easiest way to learn programming on a Raspberry Pi.

We now have Raspberry Pi Model B with 512MB RAM in stock and shipping now!

meowPi – a @Raspberry_Pi program that emits a meow when a trip wire is activated #piday

Posted: 15 Mar 2013 02:55 AM PDT

Meowpi

c0nrad/meowPi. Stuart writes -

meowPi is a Raspberry Pi program that emits a meow when a trip wire is activated.

I used the adafruit tutorials all the time, so I figure I should at least try to give back. The git link I posted is a tutorial/code for building a trip wire using an HC-SR04 ultrasonic module.

Re: Libreria per lettura analogiche differenziali

Posted: 15 Mar 2013 02:46 AM PDT

Sbaglio o Leo ha fatto una libreria per questo caso?  smiley-wink smiley-sweat

Should I replace my board or there is something wrong with my code

Posted: 15 Mar 2013 02:45 AM PDT

Hi.. Recently I am trying to build a secret knock and sms based door lock.. but when I implement the sms the secret knock is not very responsive ? What should I do.. my board is Arduino Duemilanove w/ Atmega328 and Icomsat 1.1...

Should I replace Ardu...

Re: [Solved] LCD crashes on characters with first/last 4 bits = 1111

Posted: 15 Mar 2013 02:45 AM PDT

Hi

Could you please put the image of the connection of this project because i faced problems and i want to make the connection like yours 

Re: Port Manipulation Encoder

Posted: 15 Mar 2013 02:45 AM PDT

Ma per controller cosa intendi?

Re: DHT22 Quale codice ?

Posted: 15 Mar 2013 02:38 AM PDT

Il sensore è digitale non analogico e usa il protocollo 1-wire.
Dovresti usare un analizzatore di stati logici per verificare il passaggio di dati dal sensore all'Arduino, con un semplice tester non puoi.

XBee Wireless Kit and Arduino Pro, issues interfacing

Posted: 15 Mar 2013 02:16 AM PDT

Hi there, I am very inexperienced with wireless. I bought this https://www.sparkfun.com/products/9897 XBee Wireless Kit Retail. I soldered the headers to the shield and mated it with my Arduino Pro 328 - 3.3V/8MHz. I plugged in the modules into the shi...

Re: 12864 ST7920 LCD + Universal Serial Digole: UART/IIC/I2C/SPI Adapter

Posted: 15 Mar 2013 02:14 AM PDT

Same with me I bought same interface and 128X64 and cannot make it work my rtc on Ic2 is working great but the lcd remains blank , in the manual it is written that you have to make a configuration to activate the controller you have in our case ST7920 ...

Re: Problemas para ligar Placa Arduino MEGA com bateria 9v

Posted: 15 Mar 2013 02:13 AM PDT

Como estas a ligar?
Com 9V deve funcionar para alimentar o Mega.Ja tentaste com outra fonte sem ser a bateria?
Podes sempre tentar com um transformador de 12V mas tem de ser rapido pois o regulador onboard aquece um pouco com essa tensao.
Os leds na pl...

Re: Problema sketch monitoraggio contatore Enel e fotovoltaico

Posted: 15 Mar 2013 02:12 AM PDT

Tempo di risposta elevato vuol dire 100/200ms come il tempo la lettura dell'analogRead. Se salti conteggi alla frequenza di 50 impulsi al minuto il problema è forse da un'alt...

Re: functions ::IsSMSPresent and ::GetSMS not returning next message's position?

Posted: 15 Mar 2013 02:12 AM PDT

sorry forgot to add a reset for var sms_text_final, the purpose is to add spaces before and an ending " ~ " to terminate as the LED matrix sample code requires

should be:

would putting var declaration inside checkSMS() fix the problem as shown below

[c...

Raspberry Pi Poster for Elektor #piday #raspberrypi @Raspberry_Pi

Posted: 15 Mar 2013 02:00 AM PDT

RasPiPoster

Check out this great Raspberry Pi Poster created by Gregor van Egdom:

A few weeks ago, Interactive Objects was approached by Elektor Magazine to design a poster for the popular Raspberry Pi. For those that don't know: this is a $35 hackable computer, running Linux. It's meant for education, but quickly became popular with the maker community. Basically, it's comparable to the very popular Arduino prototyping platform. While an Arduino can only perform one task at any given time, the Raspberry Pi uses a microprocessor instead of a microcontroller allowing to perform multiple tasks at the same time. Because it runs Linux, any program or code that runs on Linux can (be made to) run on a Raspberry Pi.

The poster provides some basic information about the Pi, like connectors and their functions. It's also a nice starting guide for people just getting their hands dirty with the device for the first time. After the poster ran in the current issue of Elektor Magazine, we're now free to distribute it ourselves.

Let us know what you think. Feel free to point others to it and don't forget to print out a copy for yourself!

Read more.

RasPiPosterBehindTheScenes

998Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new "Adafruit Raspberry Pi Educational Linux Distro" ? It's our tweaked distribution for teaching electronics using the Raspberry Pi. But wait, there's more! Try our new Raspberry Pi WebIDE! The easiest way to learn programming on a Raspberry Pi.

We now have Raspberry Pi Model B with 512MB RAM in stock and shipping now!

MOVED: Help with code

Posted: 15 Mar 2013 01:50 AM PDT

Re: Help with code

Posted: 15 Mar 2013 01:49 AM PDT

Hi,

sorry but this board of the forum is dedicated only to the official Arduino GSM shield (http://arduino.cc/en/Main.ArduinoGSMShield).

I moved the discussion in the proper section (Networking, Protocols, and Devices).

Re: code review

Posted: 15 Mar 2013 01:49 AM PDT

Code:
if ( sensorstate = LOW )
    {
        unsigned long currentmillis = millis();
    }
There are at least two things wrong with it!

Re: Ardunio and MySQL

Posted: 15 Mar 2013 01:49 AM PDT

Hello all,

I've been recently looking in to a project that includes an Arduino and LEDs. The idea is that the LEDs will be activated by finding strings of text located in...

Need to press reset button on Arduino + Wifi Sheild when using external power

Posted: 15 Mar 2013 01:48 AM PDT

Hi I'm creating a project for school which will allow me to turn on an led through Wi-Fi. My problem is that I noticed that when i power my Arduino + WiFi shield using USB it works fine, but when I use an external power source I need to press the reset...

Re: Open Source??......solo nel termine stretto

Posted: 15 Mar 2013 01:24 AM PDT

stenoxp stai polemizzando per il gusto di polemizzare. Questo é una cosa brutta. Non condivido la Tua opinione che Arduno dovrebbe curare di piú la documentazione in italiano. Se non sei d' accordo allora scrivi Tu una guida in italiano. Se non Ti piac...

Re: State Machines and Interrupts

Posted: 15 Mar 2013 01:23 AM PDT

Code:
    if(millis() - time1 < 2000)
    {
      digitalWrite(13, HIGH);
    }
    if(millis() - time1 < 4000)
    {
      digitalWrite(13, LOW);
      time1 = millis();
    }
If millis() - time is less than 2000 it will also be less that 4000 ...
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