background preloader

Tutoriels Arduino - Ethernet + SD

Tutoriels Arduino - Ethernet + SD
Whatsit? We just got the latest version of the Arduino Ethernet shield with a MicroSD card slot and I promised Bill Greiman I'd try out the latest version of his SdFatLib library so I decided to code up a simple Webified file browser. Its a quicky project and demonstrates what you can do, but it isn't 100% perfect so you should be ready to modify it if you'd like to do other stuff, 'K? This is a good beginning to a logging web-monitor, or remote storage system. Get familiar Initializing Micro-SD card on an Ethernet shield The latest Arduino Ethernet shield comes with a handy MicroSD card slot so that you can store and retrieve data through the shield. Be sure to have the very latest version of SdFatLib , as you'll need some of the newer capabilities! First thing to note is that the SS (Slave Select) pin for the card is digital 4 (although as of the writing of this mini-tutorial, the schematic hasn't been updated, you'll have to trust me!) uint8_t r = card.init(SPI_HALF_SPEED); To: List files Related:  neurocomdray

Système Adafruit apprentissage Introducing Bluefruit EZ-Link The ultimate serial Bluetooth link & wireless Arduino programmer We are excited to add another product to our growing Adafruit Bluefruit line, this time its the Bluefruit EZ-Link: the best Bluetooth Serial Link device ever made. Like you, we have purchased all sorts of Bluetooth serial link modules, with high expectations - we just wanted something that worked! But nothing ever did exactly what we wanted: there was always some configuration modes to wade through, and using one of those other modules to reprogram an Arduino is impossible. Adafruit 2.8" Color TFT Touchscreen Breakout v2 Color! Add some jazz & pizazz to your project with a color touchscreen LCD. Wireless Music Veto Button for your Office Exercise your right to skip songs in the office! This project uses the comically large "big red button" to cast your negative vote for the music that's playing on Spotify. Adafruit NeoPixel Überguide Connecting a 16x32 RGB LED Matrix Panel to a Raspberry Pi

LED Orb 2.0 : Une sphère POV RVB en rotation à base de LED Voici une réalisation électronique DIY très poussé, c’est un système de type gyroscope qui utilise plusieurs cadrans en rotation dotés de LED RGB. Ce montage dispose de 3 axes de rotation qui permette d’afficher une sphère électroluminescente à l’aide de la technique POV (Persistance of Vision) Ce qui m’a d’abord impressionné dans cette réalisation c’est le coté amateur de la chose, mais en regardant les détails, on s’aperçoit que le concepteur a dû bien ce prendre la tête avec certains détails comme l’équilibrage des pièces en rotation, ainsi que la transmission de données à l’aide de balai sur les différents axes. La structure est réalisé en bois, et les ensembles en rotation sont réalisé avec de petites tiges métalliques soudés à l’étain, plus artisanal que ça, on ne peut pas. La plupart des pièces ayant servit à la conception proviennent de récupération sur des vieux appareils électroniques HS, comme des magnétoscopes. Et voici le fonctionnement en vidéo : via :

Realisations Electronique > Réalisations Dernière mise à jour : 07/04/2019 Dernière page ajoutée ou mise à jour : Régulation simple pour moteur 001 Feuille de route - Avertissements - Droit à l'erreur ? - Conventions schémas - Débuter en électronique - Les typons proposés Mélangeurs audio Préamplificateurs audio (ligne, guitare, micro, cellule MD, ...) Préampli ligne 001 - Entrée symétrique, sortie symétrique, gain de quelques dB.Préampli ligne 002 - Stéréo, entrée asymétrique, sortie asymétrique, gain de quelques dB.Préampli guitare 001 - Simple, basé sur un AOP, et sans correction de tonalité (pour débutants)Préampli guitare 002 - Un peu plus évolué, possédant deux sorties symétriques indépendantes (pour débutants avertis). Amplificateurs audio Transport / Commutation / Interphonie / Réglages audio Distributeur audio 001 - Distributeur audio stéréo 1 entrée, 3 sorties, asymétrique. Correcteurs, compresseurs, filtres, limiteurs audio Correcteurs de tonalité Filtres Compresseurs et limiteurs Interfaces

NRF24L01-2.4GHz-HowTo Having two or more Arduinos be able to communicate with each other wirelessly over a distance opens lots of possibilities:Remote sensors for temperature, pressure, alarms, much moreRobot control and monitoring from 50 feet to 2000 feet distancesRemote control and monitoring of nearby or neighborhood buildingsAutonomous vehicles of all kinds These are a series of 2.4 GHz Radio modules that are all based on the Nordic Semiconductor nRF24L01+ chip. (Details) The Nordic nRF24L01+ integrates a complete 2.4GHz RF transceiver, RF synthesizer, and baseband logic including the Enhanced ShockBurst™ hardware protocol accelerator supporting a high-speed SPI interface for the application controller. The low-power short-range (200 feet or so)Transceiver is available on a board with Arduino interface and built-in Antenna for less than $3! NOTE! Many users have had trouble getting the nRF24L01 modules to work. Range?? On the left is the low-power version, with it's built-in zig-zag antenna.

Plugins - freedomotic - Extension Freedomotic grâce à des plugins - Immeuble Cadre distribuée et Home Automation What is a plugin Freedomotic is an application extensible through plugins. Plugins are simple classes within a .jar Java package. The communication between the plugin and Freedomotic is automatically managed via a Message Oriented Middleware. Plugin folder structure Freedom API This API defines four types of plugins: Sensor: extends the class it.freedoom.api.Sensor. How to make a non-Java application communicate with Freedomotic Till now we have talked about how to extend Freedomotic with Java plugins. Plugins features

L'indice World Famous d'Arduino & Freeduino connaissances Débuter avec Arduino! - Chapter Zero «tronixstuff Hello world! Updated 24/11/2012 Please join with us as we learn about electronics and the Arduino! Together through this series of tutorials I would like to share with you a journey of learning, exploration and fun with the Arduino system, and make some enjoyable, useful, interesting, useless and practical things. These posts will be published on a regular basis, on top of the other non-micro controller posts. So let’s get started… There are over fifty chapters in this series, however you should start here (chapter zero). Getting Started with Arduino (Massimo Banzi) and also assume a basic knowledge of electronics. If you would prefer an off-line method of learning, or would like a great book on the topic – consider my book “Arduino Workshop” – it’s the best book on the market for a complete beginner to learn about Arduino. First of all, let’s breakdown the whole system into the basic parts. So, we have hardware and software. Now for the Arduino itself. Great! How did you go? Exercise 0.1

arduinoscope - oscilloscope et la sonde logique à l'aide arduino et le traitement I saw the wonderful arduino/processing scope, and thought of many improvements, including: logic analyzer mode that shows 1's and 0's clearly. pause frame save frame configurable pin-count use as many pins as will fit on screen (tested with 12 at 800x800, seems ok) use scope class in your own thing, easy to reuse, and setup any kind of GUI shows volts, based on scaling settings Arduinoscope is very much a DIY sort of tool. It makes it easy to set it up however is useful. It can be used a lot of different ways (see Usage for more info) If you just want a simple oscilloscope, using arduino, put the arduino sketch on your arduino, and run the pre-made application zip (in downloads to the right) for your platform. I have started work on a new version hosted on github: At some point, once the 2 GUIs are complete, this will replace this version.