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Archive for the ‘sd’ Category

Apr
06

Arduino Project: Data Logging with DS3231 RTC, SD card module and Arduino Nano DIY data logger

arduino, datalogger, DS3231, RTC, sd Commenti disabilitati su Arduino Project: Data Logging with DS3231 RTC, SD card module and Arduino Nano DIY data logger 

Arduino Project: Data Logging DS3231 SD card module and Arduino Nano DIY data logger

Arduino Project: Data Logging with DS3231 RTC, SD card module and Arduino Nano DIY data logger - [Link]

Nov
09

SDWebServer – enc28J60 and Arduino

arduino, ENC28J60, sd, SDWebServer, webpage Commenti disabilitati su SDWebServer – enc28J60 and Arduino 

webserver-1

Luca Dentella build an ethernet shield based on the ENC28j60 driver from Microchip.

SDWebServer is a complete webserver that can retrieve static elements from an SD card (including a user-defined default webpage) and can also create dynamic pages. This is the latest post in my tutorial about using ENC28j60-based shields with Arduino.

SDWebServer – enc28J60 and Arduino - [Link]

Mag
06

Time to Expand your Yún disk space and install Node.js

Announcements, arduino, Arduino Yún, node.js, sd, Yun Commenti disabilitati su Time to Expand your Yún disk space and install Node.js 

ArduinoYun

Following the announcement of the new Yún image, we are happy to announce two new features of the Arduino Yún.

  • The first feature allows you to use a micro SD card as a replacement for the Yún’s internal flash memory. We have a tutorial that demonstrates how using this expands your Yún’s free disk space from the original 7 Megabytes to the available Gigabytes of your SD card.

Having more disk space allows you to make more complex projects, like activating webcams and saving pictures taken with it. In addition, by using an external SD card you avoid using the internal flash memory, thus extending the life of your Yún.

To upgrade your Yún to access this feature, follow the tutorial. Report back to the Arduino Yún forum if you have any issues or questions.

  • The second new feature is the availability of Node.js as an installable package.

In order to install Node.js on your Yún, use the Arduino IDE to upload the YunSerialTerminal example or access your Yún via SSH.

Be sure your Yún has access to the internet, then type the following commands:

opkg update
opkg install node

And voilà! You’ve got Node.js on your Yún.

Try it out with the following command: 

node -e "console.log('Hello_Yun')"

If you are a Node.js fan, you probably want to use your favourite modules. Unfortunately, not every Node.js module is “pure javascript”, so some modules won’t work on the Yún. We are solving this by preparing packages for the most common native Node.js modules. We have already prepared node-serialport (opkg install node-serialport) and noble is on the way. If you miss your favourite module and want it added to the list, please consider joining us in developing the Yún.

Mar
13

Playing WAV sound files with Arduino

arduino, arduino nano, instructable, sd, WAV Commenti disabilitati su Playing WAV sound files with Arduino 

PlayWAVfile

This instructable illustrates a simple circuit to play wav sound files stored in an SD card using arduino Nano V3.0. [via]

Playing WAV sound files with Arduino - [Link]

Ott
19

Arduino compatible WiFi Shield with multiple functions

arduino, indiegogo.com, sd, SRAM, wifi Commenti disabilitati su Arduino compatible WiFi Shield with multiple functions 

20131017115537-wifishield-1-619

A multifunction WiFi Shield that will boost your Arduino systems.

Have you ever wanted to include WiFi functionality into your Arduino system but been scared away by the shear cost and complexity of it. Not to mention that you normally want to have a few other things in there such as maybe an SD card to be able to give those web pages some flare, a real time clock maybe and what about some non volatile SRAM memory to store all that real time sensor data that you have to take good care of.

Arduino compatible WiFi Shield with multiple functions - [Link]

Ago
19

Rescuing an SD card with an Arduino

arduino hacks, data recovery, sd, sd card, SDIO, SPI Commenti disabilitati su Rescuing an SD card with an Arduino 

SD

A few days ago, one of [Severin]‘s SD cards died on him, Instead of trashing the card, he decided to investigate what was actually wrong with the card and ended up recovering most of the data using an Arduino and an immense amount of cleverness.

SD cards can be accessed with two modes. The first is the SDIO mode, which is what cameras, laptops, and other card readers use. The second mode is SPI mode. SPI is slower, but much, much simpler. It turned out the SDIO mode on [Severin]‘s card was broken, but accessing it with an Arduino and SPI mode worked. There was finally hope to get files off this damaged card.

[Severin] used a few sketches to dump the data on the SD card to his computer. The first looked at the file system and grabbed a list of files contained on the card. The second iterated over the file system and output all the files in hex over the serial port. With a bit of Python, [Severin] was able to reconstruct a few files that were previously lost forever.

Even though the SD card was completely inaccessible with a normal card reader, [Severin] was able to get a few files off the card. All the sketches and Python scripts are available on the Githubs, ready to recover files from your broken SD cards.


Filed under: Arduino Hacks
Gen
23

Data-logging made simple with Arduino

data logger, logger, logging, projects, prototyping, RTC, sd, shield, tutorial Commenti disabilitati su Data-logging made simple with Arduino 

One of the best capabilities provided by Arduino regards its very high modularity, which helps users to quickly translate ideas into physical artifact, as practically demonstrated by Mauro, which shows on his blog how to build a simple data-logger by properly combining different shields. By using few additional components (mainly resistors and buttons) a fully-functional data logger can be easily implemented.

More information can be found here.

[Via: Mauro Alfieri's blog]

Muy buenas a todos! Tras un largo letargo de duro trabajo dónde no hemos tenido tiempo de nada, volvemos de nuevo con la serie de video tutoriales. Esta semana publicamos un nuevo capítulo de la serie “Arduino Tutorials”, esta vez se trata del capítulo número 7, el cual nos introduce en el mundo de las [...]
Nov
08

Arduino MP3 Jukebox

arduino hacks, digital audio hacks, jukebox, mp3, sd, vs1002d Commenti disabilitati su Arduino MP3 Jukebox 

Here’s an inexpensive Arduino-based MP3 Jukebox (translated) which [Jose Daniel Herrera] put together.

He spent some time making sure that it looked great sitting on a shelf with his other audio equipment. This started with a wooden box which is some reused packaging. We’re not familiar with the ‘iNFUSiONES’ product; perhaps it’s tea or tobacco? At any rate, to this he added a custom face plate to host the character LCD, rotary encoder, two buttons, and to act as a grill for the two speakers.

The speakers and their accompanying amplifier circuitry were pulled from a portable speaker set. He combined them with a VS1002d MP3 decoder module, SD card breakout board, and the Arduino itself. In addition to the overview post linked above, there is also a collection of assembly photos, and a post discussing the way he arranged the code for the control systems (translated). See and hear the unit in action in the clip after the break.


Filed under: arduino hacks, digital audio hacks


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