Get flash to fully experience Pearltrees
In order to maintain great lawn it is important to ensure proper moist. Usually this is achieved with water sprinklers. These may be turned on manually or with sprinkler timer that can be purchased in any garden store. But these offer pretty limited functionality.
Pick up a pen and draw a sketch. There, that was easy – however crude, you can get out an idea. Sketching with paper is still the fastest way for most of us to imagine something. But between that immediacy and the end result, you need prototypes.
Those of you who have read this blog before will know that I do most of my work using Processing , an open-source programming language that was specifically created for artists and designers. It’s easy enough that you can learn the basics a day or two, but powerful enough to use for any number of applications, ranging from interactive installations to architecture to generative visual systems, and beyond. I’ve used it to visualize huge sets of data, to design a 1000 square-metre playground, and to create hundreds of small digital ‘sketches’. Over the last few months, Processing has gained yet another appealing attribute – you can now use it to quickly and easily create apps for mobile devices that use the Android operating system .
From Processing The primary goal of this project is to make it foolishly easy to create Android apps using the Processing API. Once you have Processing on your machine (and the Android developer tools), you can simply write a line of code, hit Run (Ctrl-R or Cmd-R), and have your sketch show up in the emulator as a working Android app. Select Run on Device (Ctrl-Shift-R or Cmd-Shift-R) to have it run on an Android device that you have plugged into your machine. That's good stuff! Note that this code is incomplete and contains bugs.
This photo has notes. Move your mouse over the photo to see them. <a href="../..
Ever wanted to reprogram Arduino without a Computer? Have a look at the [ Teague Labs ] tutorial. The Computerless Arduino consists of two major components; an Arduino-compatible microcontroller loaded with a realtime code interpreter, and a stand-alone 5 button LCD display to display port values and manipulate code. The display can be connected to the Arduino via a 4-pin port at any time to peek at In/Out values, view the current code, and make changes as desired.
A very interesting feature of Arduino is the great avalaibility of library that make the developer work very simple and fast. Make a Web Server, a Web Client or post a Tweet haven’t difficulty. Try to do the same application with the Microchip’s Stack TCP/IP…. It’s not impossible but for beginner developpers is of course hard. With the Ethernet shield or WiFi shield you can connect your application to the internet world, get information, send email, post data… Post data?
I am a big fan of the Arduino platform. For those who aren’t familiar with the Arduino, it is a microprocessor development environment & ecosystem. You can visit their site for more info. I started playing with the Arduino and soon discovered the ATtiny microprocessor chip, which is a much smaller cousin to the ATmega series which is used in the Arduino.
This is a program to stabilize a multicopter (copilot), runs on microcontroller like Arduino or Teensy++ and only a wii motion plus, no other electronics needed. These project started April, 2010. Supported are planes, tricopter, quadricopter (+ and x config), hexacopter (penta and coaxial). The self-leveling capability helps when doing FPV (first person view). 19 Oct 2011
The Flying Machine Arena (FMA) is a portable space devoted to autonomous flight. Measuring up to 10 x 10 x 10 meters, it consists of a high-precision motion capture system, a wireless communication network, and custom software executing sophisticated algorithms for estimation and control. The motion capture system can locate multiple objects in the space at rates exceeding 200 frames per second. While this may seem extremely fast, the objects in the space can move at speeds in excess of 10 m/s, resulting in displacements of over 5 cm between successive snapshots.
Tue, Sep 1 2009 Posted by Jonathan Oxer Finishing off the "Touch Control Panel" project today for the book I wrote a simple app in Processing that displays the status of virtual buttons on the touch screen.
This calculator allows you to do an approximate conversion between millicandelas (or candelas) and lumens for an LED where you know the beam angle. The reason it's approximate is because the specs don't usually include information about how the luminous intensity (in candelas) was measured. This calculator is perhaps most useful in comparing the light output of LEDs with different beam angles.
NB : This page refers to a deprecated product. Information on the current Wireless Shield can be found here Overview The Xbee shield allows an Arduino board to communicate wirelessly using Zigbee. It is based on the Xbee module from MaxStream .