The Knowlege base arranges tips and userful informations scattered on the web.
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Expo 2015 will close at the end of October. Because I enjoied it a lot, I’d like to give you some advice on Expo, Milan and Italy. First of all, buy ticket on line and grab a map once in. The Mobile application suck a bit, so I preferred a paper map (I am too …
Okey, you know Oracle. A very good database, a very old database, a very solid rock. Not famous for its error messages. I have already stumbled upon a misleading error on the old rock. This error anyway is incredible. If you try to push a very long text in a varchar2, you can end up with …
ORA-01461: can bind a LONG value only for insert into a LONG column Read More »
Another subversion repository Wellcome in 2002 subversion users! Some very old and stable customers has just discovered Subversion. Bad luck: a lot of cool open source software are on git already! You can leave them with the old-as-your-grandpa subversion system, but you can develop with git in your local directory… Migrating from SVN to git under …
After my two children grow a little, I have some spare time to play with RaspberryPi. I have bought a Raspberry Pi 2 Model B, a very neat and compact machine with 1GB of RAM, and a quad-core ARM chip on it. I was looking for an easy-to-carry unix box, and I was wrong: raspberry …
RaspberryPi 2: The perfect box for your backpack Read More »
“The most dangerous phrase in the language is, We’ve always done it this way” – Grace Hopper I am a very happy owner of a RaspberryPi Model B 2, a quad core ARMv7 computation unit for a price between 45 and 35 €. If you plug only a network cable it can be powered by …
Erlang is a great language. [2019-UPDATE] Erlang 22 is OUT, so I wanna to come to the party! On April 2015, Erlang father’s Joe Armstrong give us a very interesting lesson I want to tell about. There was a long thread titled “Erlang and Akka, The Sequel” on the erlang mailing list, reasoning about the need …
Arudino StereoSID emulates the SID sound chip of the famous Commodore 64. It is based on the Atmega8 MOS6581 SID Emulator from Christoph Haberer. Library conversion and memory optimization by Mario Patino. Stereo Effect by Giovanni Giorgi MOS6581 SID Emulator Arduino Library with stereo capability https://github.com/daitangio/sid-arduino-lib 1 forks. 15 stars. 1 open issues. Recent commits: …
L’Arduino IDE è uno strumento stupendo se non siete sviluppatori software professionisti, perché fornisce un ambiente molto semplice per sviluppare velocemente sketch e progetti Arduino. Se però siete degli incalliti programmatori C++, vorrete qualcosa di più potente, che vi consenta per es di abiliare le funzionalità C++11 del gcc-4.8.x che viene fornito con la tool …
Okey, getting emacs working on Windows is a pain, but we deserve a better editor for us(tm). I havce found a bunch of emacs alternative distributions, and this 64bit build seems a nice shot
Descrizione del corso: Introduzione ad Html5 basata su WebForms Target: certificazione corso 20480B Repository delle slide e del codice di esempio: https://github.com/daitangio/html5 Lingua: Italiano Tecnologia: Visual Studio 2013 (Trial Supported) Extra software required: SQL Express Esempi Scaricabili da https://github.com/daitangio/cqrs-journey-code Code Example speciali Localization API Documentazione Localization API
In questo secondo capitolo della serie egg box per arduino (una lampada a led costruita con 2 scatole di plastica delle uova), riscriveremo il codice in modo da utilizzare un sistema operativo real time chiamato NilRTOS e disponibile su Github; in particolare mostrerò un semplice sketch che è in grado di produrre un piccolo accordo …
Programmare Arduino è molto divertente, ed in questo articolo voglio mostrare come creare una semplicissima lampada luminosa. Questo esempio sarà anche il pretesto per mostrare differenti implementazioni software dello stesso progetto (in prossimi post) Questo progetto è volutamente molto semplice, e non si serve di nessun sensore. Trovate il codice su github: Arduino egg box …
Sometimes you are behind a http proxy, and the git:// protocol is not accessible. For instance on erlang rebar, all developers prefer the git:// protocol when listing dependency. But how to fix it if you are behind a http proxy? Ask help to git… [bash] git config –global url.https://github.com/.insteadOf git://github.com/ [/bash] Credits: http://erlang.org/pipermail/erlang-questions/2014-March/078402.html
After a bunch of time, I take back my Erlang Hammer from the sand of time. The result is ErZauker v0.0.2 the first pure-Erlang implementation of a code indexer. Er Zauker is a tiny but speedy search engine tailoring code searches. Zauker is backed by REDIS, the fastest RAM-based NoSQL engine you have never seen. The code get …
Ciao a tutti, è venerdì! Se avete due minuti di tempo, volevo indicarvi un articolo su un algoritmo non banale, molto ben descritto qui: http://research.swtch.com/sparse This is the story of a clever trick that’s been around for at least 35 years, in which array values can be left uninitialized and then read during normal operations, …
Usare la memoria non inizializzata per divertimento e profitto Read More »
