Arduino
Get flash to fully experience Pearltrees
Ovidiu Predescu's Weblog: Arduino Tiny Web Server - part 2
Update (December 30, 2010) : Latest version of Arduino TinyWebServer: arduino-tinywebserver-20101230.zip . Update (December 8, 2010): The below picture of the required Arduino hardware is obsolete. Look at this newer post for updated information on the new hardware. In part 1 of the Arduino Tiny Web Server I presented some hardware modifications and changes to the Arduino Ethernet shield and the Adafruit Data Logging shield.
This module integrates the sensor MMA7455L (produced by Freescale), able to detect the movement on three axes, and then in every direction. The chip offers the possibility to select three different sensitivity (± 2g, ± 4g, ± 8g) and makes available, on an SPI bus and the I ² C-Bus, the data detected by allowing a more easily read by …
Open source electronic projects
Learning Examples | Foundations | Hacking | Links This document explains how to create a library for Arduino. It starts with a sketch with a sketch for flashing Morse code and explains how to convert its functions into a library. This allows other people to easily use the code that you've written and to easily update it as you improve the library.
LibraryTutorial
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Photoduino | The opensource camera controller based on Arduino . [ via ] This is the eagerly awaited 3.0 version of Photoduino. Photoduino is an open source camera controller based on the Arduino platform which you can use to automatically take pictures with your DSLR camera.Home Monitoring System Details
This is my attempt at an home monitoring system, in true geek fashion, its not off the shelf, its assembled from reasonably cheap and recycled stuff. At its heart is an Arduino microcontroller and a tiny server running a Ubuntu Linux operating system. This page is not intended as an 'Howto' but as a catalyst for your own ideas.
Little Bird Electronics | Welcome
It has been a CRAZY couple of weeks, with wacky Christmas hours, messed up delivery times, the fun of Christmas feasting....and most importantly: We got into Startmate! So - what does getting into Startmate mean? Myself, Marcus and our friend Mark are working on a new project to "create the building blocks for the internet of things" and we called it Ninja Blocks.
You can use Arduino with Ethernetshield to fetch temperatures over network. I have created an little sketch for Arduino. This sketch has got an "telnet" server. If you connect to the IP address of the arduino, you will get the temperature from all connected DS1820 sensors. The DS1820 sensor is build in the 6.2 inch female plug. I have only two sensors connected, but you can connect more sensors to the One Wire Bus.
arduino - Jonas Genannt
Practical Arduino: News
When whittling down the list of projects for Practical Arduino I never expected the Weather Station Receiver project to be one that gained so much attention. To be honest I was dubious about whether enough people would build it to justify its inclusion, but felt that even if it wasn't built very often it was still worthwhile as an example of how to do signal timing analysis and bitstream decoding. I'm glad we put it in, because it seems to be one of the more popular projects! Reader Kelsey Jordahl contacted me yesterday with details of a modified version that reads data from a La Crosse TX4U system, using the circuit from Practical Arduino but with modified software to deal with the different data format. Kelsey's system logs the data and generates nice-looking graphs that are displayed online. For more information (including the modified source code) check out:
KMtronic: A range of relays - USB, RS232, RS485 and LPT relay
A general purpose USB Relay controller for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay controller allows a PC to control a single external device using simple RS232 commands.
You can not drive a solenoid directly from your Arduino. It requires more current than you can provide and produces destructive voltages when it is switched off. There is a simple solution. Solenoids take a lot of power The solenoid I was testing with is a 12 volt solenoid the size of my thumb.
playground - SolenoidTutorial
The most fun you can have (after blinking LEDs) is using sensors to detect whats going on in the world and act on that information. However, all sensors have their own methods of interfacing. That can make them a real pain to work with: some need pull-up resistors, some need certain power supplies, some use lots of power, some don't.
Learn how to use electronic sensors
Wiring ALPHA 1.0
Wiring is an open-source programming framework for microcontrollers. Wiring allows writing cross-platform software to control devices attached to a wide range of microcontroller boards to create all kinds of creative coding, interactive objects, spaces or physical experiences. The framework is thoughtfully created with designers and artists in mind to encourage a community where beginners through experts from around the world share ideas, knowledge and their collective experience. There are thousands of students, artists, designers, researchers, and hobbyists who use Wiring for learning, prototyping, and finished professional work production. » Roadmap include support for multiple hardware architectures "Cores"Libraries
Reference Language | Libraries | Comparison | Changes Libraries provide extra functionality for use in sketches, e.g. working with hardware or manipulating data. To use a library in a sketch, select it from Sketch > Import Library .Reference Language | Libraries | Comparison | Changes Looking at the board from the top down, this is an outline of what you will see (parts of the board you might interact with in the course of normal use are highlighted): Digital Pins 0-1/Serial In/Out - TX/RX (dark green) - These pins cannot be used for digital i/o ( digitalRead and digitalWrite ) if you are also using serial communication (e.g. Serial.begin ) . USB (used for uploading sketches to the board and for serial communication between the board and the computer; can be used to power the board) (yellow)
Board
x10
Removed directly from the arduino.cc website, the only mod, was the pins i chose... the code is attached, instructables won't let me paste it onto here for some reason... To use similar, but not equal keypads, just grab your continuity tester, and press those buttons, you will easily find wich pins are for the rows, and wich are for the columns.