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Open source sprinkler timer controller for your garden. In order to maintain great lawn it is important to ensure proper moist.

Open source sprinkler timer controller for your garden

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. If you need really flexible device, then check out this open source sprinkler valve controller. It have few nice features like Ethernet connectivity so you can schedule timer via web interface. World-leading distributor of electronic, industrial and maintenance, repair and operation products.

Getting Started with Processing for Android. Pick up a pen and draw a sketch.

Getting Started with Processing for Android

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. The Processing language has long been one of the easiest ways to sketch an idea in code – best after you’ve first put pen to paper, but as an immediate next step (and for ideas you just can’t draw). Built in Java, the creation of Ben Fry and Casey Reas and a broad community of free software makers, it runs on Mac, Windows, and Linux. Processing & Android: Mobile App Development Made (Very) Easy.

Creating apps for Android with processing is ridiculously easy.

Processing & Android: Mobile App Development Made (Very) Easy

How easy? Let’s get a from-scratch Android app working on a device in 25 minutes (15 of those minutes will be spent installing software). ** You don’t need to have an Android device to do this tutorial, since we can see the app that we’ll build in a software emulator. Android. From Processing The primary goal of this project is to make it foolishly easy to create Android apps using the Processing API.

Android

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. DIY Drones. Arduino Shield List. Boarduino - Breadboard-compatible Arduino Clone.

Blog » Blog Archive » Computerless Arduino. Teague Labs. How send data from Arduino to Google Docs Spreadsheet. A very interesting feature of Arduino is the great avalaibility of library that make the developer work very simple and fast.

How send data from Arduino to Google Docs Spreadsheet

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? In this post I want explain the best way found by RobertMParker to send data on Google Spreadsheet. HLT wiki/Arduino A Ttiny 4585. Program an ATtiny Using an Arduino. I am a big fan of the Arduino platform.

Program an ATtiny Using an Arduino

ARDUINO. BaronPilot Arduino based copilot autostabilizer with Nintendo Wii component (tricopter, quadcopter) 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.

BaronPilot Arduino based copilot autostabilizer with Nintendo Wii component (tricopter, quadcopter)

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 Look at the new quadricopter shop . 21 Jan 2011. ETH - IDSC - Flying Machine Arena. The Flying Machine Arena (FMA) is a portable space devoted to autonomous flight.

ETH - IDSC - Flying Machine Arena

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. ARDUINO. Nintendo DS touch screen controlling a Processing app. 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.

Nintendo DS touch screen controlling a Processing app

I've defined polygons on the touchscreen as buttons and put an underlay behind the screen to show their location, and the coordinates are sent 10 times / second to the host. The Processing app then displays the buttons and shows whether they are on or off. Candela (millicandela) to lumen conversion wizard. This calculator allows you to do an approximate conversion between millicandelas (or candelas) and lumens for an LED where you know the beam angle.

candela (millicandela) to lumen conversion wizard

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. To briefly explain the math the wizard does, it simply applies the conversion 1 candela = 1 lumen/steradian. To do this, it converts the beam angle you supply into a solid angle in units of steradians. The likely thing for a manufacturer to do is to list their luminous intensity spec in the most favorable way possible.

Adafruit Industries. Arduino - HomePage. ArduinoXbeeShield. 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. News. Otto Marketing - The Wireless, RF and Connector People. The World Famous Index of Arduino & Freeduino Knowledge. Digital Temperature Sensor Modules for Linux. Arduino Daily.