Arduino temperature and humidity station with DHT11 and 1602 LCD + I2C shield

DHT11 humidity and temperature sensor is perfect for your electronics projects. i.e. weather stations, home environment control systems, and agricultural/garden monitoring systems. 

Font Awesome icons for Power Point

Font Awesome by Dave Gandy is “the iconic font” designed for use with Twitter Bootstrap. But you can use free on any project also power point presentations. This is a simple mockup for power point. You can copy paste or drag icons from slide to any other slides in Your presentation. Font Awesome’s licensing is a combination of the SIL open font license, MIT license for code, and the CC 3.0 license – making it completely free also for commercial use.

Google fusion table and data visualization - Google Maps and Fusion Table Swipe Effect

The Google Maps swipe layer tool is used to interactively reveal layers beneath the layer being swiped. This tool makes it easy to see what is underneath a particular layer and compare data from two data-sets. To use the Swipe Layer tool, you need to create map in your Fusion Table and copy Table ID to code snippet from GitHub.

Google fusion table and data visualization - New Google Chart API and Fusion Table Info Window - Tutorial !

New Google Chart API it's great tool to work with Fusion Table and Google Maps, together in your hand it's will take yours works to the next level ! In this tutorial I will show You how to create cool map with charts based on data from Google Fusion Table. Remember Google Chart API is so simple yet so powerful that can give you some amazing features:

DEMO on GitHub

  • Rich Gallery - Choose from a variety of charts. From simple scatter plots to hierarchical treemaps, find the best fit for your data.
  • Customizable - Make the charts your own. Configure an extensive set of options to perfectly match the look and feel of your website.
  • HTML5 / SVG - Cross-browser compatibility (adopting VML for older IE versions) and cross-platform portability to iOS and new Android releases. No plugins are needed.
  • Free - Use the same chart tools Google uses, completely free and with three years' backward compatability guaranteed.
  • Controls and Dashboards New! - Easily connect charts and controls into an interactive dashboard.
  • Dynamic Data - Connect to your data in real time using a variety of data connection tools and protocol.

Google fusion table and data visualization - Info Window with tabs for Fusion Table

TabInfoWindow4FusionTable is a simple script for using a JQuery UI Tabs to display data from Fusion table on the Map. Tabs are easy to implement and can be built to work with your existing markup. Creating tabbed interfaces becomes a piece-of-cake when using the Tabs function in the jQuery UI library. It can be utilized to create completely unique interfaces without having to be a coding expert.

This guide will walk through the process of adding JQuery tabs to your map.

DEMO is available on GitHub 

Google fusion table and data visualization - jQuery layers slider - tutorial

Fusion Table Slider is a slider for Fusion Tables Layers to creating mind-blowing data visualizations with must-see effects for your webpages. It's a collaborative project on GitHub and that you're welcomed to add improvements. You are granted full rights to contribute to the project or use it as a starting point for your own project. It's build on jQuery platform, JavaScript library designed to simplify the client-side scripting of HTML.

This Tutorial will show you how to customize FuisonTableSlider to your data set and create a data visualization project with it. It will walk you through adding the fusion table layers to Google Maps API (v3) and creating your first visualization web application.
DEMO on GitHub

Google fusion table and data visualization - JQuery simple slider and Google FusionTableLayer - tutorial

Adding Fusion Tables as a layer to your Google Map is a great way to display data. One of my favorite aspects of Fusion Tables is the flexibility and ability to customize the style of the added Fusion Table layer through queries.  This tutorial is about how to make simple slider using fusion tables and Google Maps API with little support from jQuery. In this tutorial we will use JQuery User Interface that's great tool for adding jquery features. At you an chek all of the slider options. We are going to use minimum, you can check out the demo there to see all.

This tutorial is for total beginners I assume that you have some knowledge of HTML. You don't have to be an expert, just remember coding it's intelligent copy & paste.

Google fusion table and data visualization - How to insert a chart into Google Map InfoWindow

Fusion Table Info window provide you with a space to put text or HTML code you like. What is important you can choose the content of your info window based on the data in Fusion Table columns. This is starting to be fun when you include Google Charts and create interactive dynamic charts for the readers.

1. Once data has been cleaned and uploaded to Google Fusion Tables and Map view created. How you can do this was described in previous tutorials. We can start changing our InfoWindow.

2. First we need to click on Change InfoWindow layout in left column and then switch from Automatic to Custom tab.

Google fusion table and data visualization - How to create thematic polygon data map tutorial

This is my second tutorial about Google Fusion tables, this time I will show you how to  create thematic polygon data map with Fusion Table.

1. Go to Fusion Table and click Open. You can add data from Computer, Google Spreadsheet or just paste the link with data from Internet. That's really cool!

Converting external RSS Feed to GeoRSS - tutorial

GeoRSS is an emerging standard for encoding location as part of a RSS feed. For me the most interesting how it's can be utilize in humanitarian projects and natural disaster alert systems. 

Some time ago UN humanitarian aid agencies began cooperation on construction of a common alert and coordination system for natural disasters, GDACS. Information from several separate organizations are gathered, processed and republished. Echange of data is based on GeoRSS.

Let's try to build Georss from external RSS Feed and publish this as a layer on the map using Google Maps. 

TIP: You can find many Georss Feeds in Internet and add them as a layer to the map. Here is a one of the repository of natural hazards feeds.

1. We need to convert our RSS feed to GeoRSS Feed. The best way is to use special converter from

Google fusion table and data visualization - how to create cool heatmap with your data, tutorial

Google Fusion Tables is a very good modern data management web application.This is a new application from Google and still in the experimental phase. Fusion Table could be integrated with other Google tools, e.g. Google Doc, Forms, Spreadsheet, etc. and added to Google Drive and data can be imported from those tools or online into Fusion Table.

Let's try this new tool and create simple Heatmap with our data. Heatmaps display colors on the map to represent the density of points from a table.

 TIP: Google Fusion Table can be accessed under Google Drive. But first you need to add this option to your Google Drive.

Before after jQuery image effect for Blogger - floods in Philippines Landsat images

Some time ago I was searching for information about post disaster situation in Philippines after Typhoon Haiyan (Yolanda) and I found a satellite pictures showed a City of Tacloban just after Typhoon. To show magnitute of the disaster, they showed a before and after picture using Flash that let the visitor drag a slider over the images, so that you could easily see how dramatic the changes were. I immediately thought that this could be nice tool for humanitarian action teams to present situations and also changes after reconstruction process/projects.

Data visualization with CartoDB - Tutorial how to merge two tables - choropleth map

CartoDB it's in my opinion one of the best online maping platform. Functionality is perfect for data visualization it's has done a great job of making the simple tasks even easier to do. Uploading data to create an embeddable map is fairly straight forward and takes just a few minutes.

If you need to visualize data for every country and your data in a spreadsheet like Excel, CSV, you can easily merge it with other tables with geo-coordinateness and crate beautiful maps ! Just follow this steps.

TIP: When you merge two tables one with details coordinates and second only with Country Names or ISO Codes, then you don't need to proceed geocoding.

How to add custom symbols in ArcGIS Online - 8 step tutorial

ArcGIS Online provides quick and simple mapping with basic GIS functionality for free. This is great tool to start your journey with maping.  Maps can be created and viewed on-line via and share with friends or coworkers. Maps can be also embed to any website, blog etc.

Throughout this tutorial, we’ll walk you through the creation of a basic custom symbols  for our map. It’ll consist of two parts: Creation of simple map and adding a layer to the map and second adding our symbols and publishing map.

TIP: Symbols (Symbology) is one the most important component of good mapping. You can read more about this in GIS WIKI

1. First you need to login to, you will need an ESRI Global Account to save and share maps, don't worry it's free.
2. Click on the Map button in top Menu to create a new map (all your saved maps can accessed from the My Content tab).

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