One of the first companies to focus on Wi-Fi was the AsyncLabs, who proposed a famous WiFi shield, including the appropriate libraries. What we propose is a new solution for Wi-Fi: this is a shield that the hardware was inspired by that of AsyncLabs, but in addition, we have provided a slot for microSD memory.
The basic component of the shield that we have made is a Wi-Fi module MRF24WB0MA manufactured by Microchip. The device is a Wi-Fi IEEE 802.11 RF transceiver, with a data rate between 1 and 2 Mbps, and with an internal antenna.
The WiFi shield supports both types of wireless networks infrastructure (BSS) and ad-hoc (IBSS) and is also allowed to connect to secure networks (cryptographers and are supported 64 and 128-bit WEP, WPA/WPA2 and TKIP, AES and PSK).
The library is constantly evolving, so we have provided a space where they will be published on http://code.google.com/p/wifi-shield-oe/ various versions available. http://www.open-electronics.org/arduino-wifi-shield/
Arduino WiFi Shield - [Link]
Andrea Belloni writes:
We realized this project for the “Arduino Day” in Rome 14/04/2011. For it we used two JeeNode (Arduino variant with wireless module on-board), one Rainbowduino + RGB LED Matrix and one PC with Processing. The Processing sketch generate the “plasma” animation and sends the images stream to the first JeeNode via serial port. This JeeNode receives the images and sends it to the second JeeNode via wireless link. The second JeeNode receives the images and sends it to the Rainbowduino + RGB LED Matrix via i2c. More details on the blog’s post (for the English version scroll down).
Wireless pixels - [Link]
Moser from ReiBot has developed a simple project for using an Arduino along with an LM399 and several discrete components to measure inductance. He says: [via]
So you need to make or measure an inductor, but you don’t have an oscilloscope or signal generator? Measuring inductance with a handful of cheap common parts is certainly possible. I’ve verified this method is accurate with a scope from 80uH to 30,000uH, but it should work for inductors a bit smaller or much larger.
Easily measure inductance using Arduino - [Link]
Use an Arduino with with USB HID support to control a project in Git… [via]
The project provides a device that allows for a user configurable Git hub repository to be interacted with via a series buttons, switch, and many other I/O electronics. This is very similar to the alias process in Unix.
You’ll be able to press buttons:
1. Clone reposity
2. Goto Project
3. Get Changes
4. Find New
5. Merge New
6. Show Branches
In the future yes/no, and enter buttons could be added. Lot’s of fun options.
Use an Arduino with with USB HID support to control a project in Git - [Link]
Using an ATmega 2560 and therefore the heart of Arduino, we have developed a universal remote control with GSM. This allows to control 2IN/2OUT, DTMF key, gate control and GSM thermostat activated remotely.
We have already presented several remote control with different functions. But now we want to present the best remote control ever made with Arduino.
The remote control is easier, thanks to the availability of several libraries that allow you to do anything to the Arduino microprocessor; if there is not really a specific library, you can modify an existing one. Thus was born TiDiGino, based on the chip ATmega 2560 used in Arduino Mega. Our system has connectors S.I.L. to mount any shield, each of them is in the same location where you would be in the original development platform, which enables the use of commercial and in any case the standard shield.
We said that the functions of our remote control, ie 2IN/2OUT, gate opener, key DTMF GSM and thermostat can be achieved by using special firmware, well, we could write these ourselves, but we wanted to offer our readers who know the Arduino environment do them. This is the sense of TiDiGino Contest, which you could follow our blog and that has just ended, as promised, we publish the hardware of the remote control and a few routines.
TiDiGino - the Arduino-based GSM remote control - [Link]
Please welcome ArduPilotMega 2.0! – DIY Drones. Jordi writes – [via]
APM 2.0 is the culmination of almost a year of hard work. We wanted to make it perfect and we finally have it, we are pushing the limits of AVR and Arduino. I’m sure you will love it, and it’s designed to cover all the DIY community expectations (including those that are not so DIY and are only interested for something that doesn’t require soldering skills).
ArduPilotMega 2.0! - [Link]
Arduino 1.0 now available.. David writes - [via]
Arduino 1.0 is now available from the download page
A long time coming, this release brings small but important changes to clean up the Arduino environment and language – as well as adding lots of additional features. Updates to the environment include a new file extension, toolbar icons, and color scheme as well as a progress bar on compilation and upload. The language changes include modifications to the Serial class, addition of DHCP and DNS support to the Ethernet library, a new SoftwareSerial library, multi-file support in the SD library, modifications to the Wire library and UDP class, etc. For details, please see the release notes or this blog post. We’ll be pushing the updated reference for Arduino 1.0 live in the next day or two.
This release is the product of many people (listed in the release notes). Thank you to everyone who helped us get here!
Arduino 1.0 now available - [Link]
The ACS712 is a fully integrated, hall effect based, linear current sensor. It converts the current that passes through its input pins to a proportional voltage on an output pin. He connected the output pin to an analog pin of his Arduino, and made a simple logging software that reads 1000 samples.
Current sensing with the Arduino - [Link]
How to connect a weather station WS2355 (or WS2300) to Weather Underground with Arduino:
There are several softwares that enable the publication of the weather data of a professional weather station, but they all work on PC, so we should connect the weather station to a computer and leave it on, the idea is not good because the computer takes up space and consumes a lot. At a time when we should spare the energy, its not a good thing.
The project we’re talking about instead operates as a stand-alone application and allows you to publish the weather station data independently on http://www.wunderground.com, “forgetting” the PC consumption and even the desk space.
Arduino controls the dialogue with the weather station to acquire the data and also the Ethernet interface to transfer them, by making the necessary connection to the Internet via ADSL, passing by a router pointing to the IP address of the Weather Underground site and transferring information using the TCP / IP.
Connect WS2355 (or WS2300) to Weather Underground using Arduino - [Link]