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Sim800H EAGLE library / footprint

SIM800H is a complete Quad-band GSM/GPRS solution in a LGA type which can be embedded in the customer applications.
SIM800H support Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power consumption. With tiny size of 15.8*17.8*2.4 mm, it can fit into slim and compact demands of customer design.  Featuring Bluetooth, FM and Embedded AT, it allows total cost savings and fast time-to-market for customer applications.




Product details

Download Library for Eagle Cadsoft

Beagle Bone linux images

What is BeagleBone Black?

BeagleBone Black is a low-cost, community-supported development platform for developers and hobbyists. Boot Linux in under 10 seconds and get started on development in less than 5 minutes with just a single USB cable.


Processor: AM335x 1GHz ARM® Cortex-A8

  • 512MB DDR3 RAM
  • 4GB 8-bit eMMC on-board flash storage
  • 3D graphics accelerator
  • NEON floating-point accelerator
  • 2x PRU 32-bit microcontrollers


  • USB client for power & communications
  • USB host
  • Ethernet
  • HDMI
  • 2x 46 pin headers

Software Compatibility

  • Debian
  • Android
  • Ubuntu
  • Cloud9 IDE on Node.js w/ BoneScript library
  • plus much more






The following link hosts all beagle-bone images and is actively maintained.It includes flasher and SD card images of angstrom, debian and ubuntu builds. Those who wish to compile the kernel from source may also do so.

Android DPI Calculator


Android Screens Densities

Enter values for the source dpi and the utility will fill in others.

Density-independent pixel (dp)
A virtual pixel unit that you should use when defining UI layout, to express layout dimensions or position in a density-independent way.

By Martin Cohen

MultiChoiceAdapter Android

Example ImageMultiChoiceAdapter is an implementation of ListAdapter which adds support for modal multiple choice selection as in the native Gmail app.

It provides a functionality similar to that of the CHOICE_MODE_MULTIPLE_MODAL ListView mode, with two additional benefits:

  • It’s easier to use, as it keeps count of the selected items, updates their background accordingly and handles checkboxes transparently.
  • It is compatible with every version of Android from 2.x. Of course, this implies that your project must use either ActionBarSherlock or the support library’s ActionBarCompat.

A version of the library that works with the stock action is also provided, for those apps with minSdkVersion=11or newer.


Try out the sample application:

Android app on Google Play

Or browse the source code of the sample application for a complete example of use.

Download from GitHub

FunDapter – Simplify Adapter creation Android

Simplify Adapter creation for your Android ListViews. FunDapter takes the pain and hassle out of creating a new Adapter class for each ListView you have in your Android app.

It is a new approach to custom adapter creation for Android apps. You get free ViewHolder pattern support, field validation so you don’t get bit by trivial bugs and best of all – you get to keep it DRY!

Download from GitHub

MapNavigator Library Android

Easy to use library to get and display driving directions on Google Maps v2 in Android. This library gives you directions and displays the route on the map.

Download from GitHub


ActivitySplitAnimation Android

A utility class to create split Activity animation made by Udi Cohen from Any.DO.

You can also read the post about this library on Udi’s blog.

Download from GitHuball


FlipImageView Android

A small android library allowing you to make a flipping ImageView easily, by extending FlipImageView.

This lib is based on the FlipAnimator by coomar.

Sample App

Download from GitHub

by Antoine Merle

iOS Libraries and tools for developers [iPhone iPod iPad]

2D Game Engines

3D Game Engines









Read more

Android Libraries and tools collection

A collection of free and opensource libraries and tools for developers that can prove to be very helpful.