In this topic you can find developments and Apps related to Windows, Android or iOS mobile devices, using Visual Studio and platforms like Xamarin.

In this series of articles I will do a bit of DIY to build a video surveillance and alarm system against home thefts, using relatively cheap materials and a program that will notify to your mobile phone in case of detecting intruders and allow you to take photographs of them to be able to immediately notify the police and provide them those photos. Rapid identification of thieves can be crucial for you to recover all our possessions quickly.

[Read More...]

In this second article in the series on the ThiefWatcher homemade video surveillance system, I will explain the different protocols that the application uses to interact with its different components, which can be replaced by different new ones allowing a large number of combinations. There is a protocol to communicate with the camera, another to trigger the system, another to alerting the user remotely, and, finally, a protocol to exchange photographs and messages to manage the server from client devices.

[Read More...]

With this article I finish the series dedicated to the ThiefWatcher solution, a homemade video surveillance system that is triggered when some intruder enter your home, alerts you by calling to the mobile phone and allows you to obtain at the moment pictures that you can use to help the police quickly identify the thieves and increase the chances of quickly recovering your stolen belongings. In this last article I will explain the App that is used as a remote client of the system.

[Read More...]

Dropbox is one of the most popular applications for sharing and storing files in the cloud. In a desktop computer it is very easy to use it, since it is integrated into the file system and the folders are just like any other folder in the system, so that they can be managed using the usual file management API. From a mobile device, however, it is necessary to use the Dropbox API to manage and access the files. In this article I will show you how to use it in a PCL Xamarin Forms application.

[Read More...]