Smart home management technology has been available on the market for many years and has greatly simplified the usage of home devices, such as home lighting, air conditioning, white goods etc. Nowadays such technology is called the Internet of things, which means it is possible to manage devices from a remote location, for instance, we can turn on air conditioning at home while staying at another location. The purpose of this final thesis is to present Arduino Uno technology for mobile controlling devices at home and analyse the programming of Arduino Uno devices as well as an overview of the Android Bluetooth application meant for device management via smartphone. At the beginning of the thesis, it is first explained what Arduino generally is and what it can be used for, along with its accessories, specifications, variations of linking up and similar. The second part of the thesis is based on connecting Arduino Uno with all components, which include making the electric circuit; in this case the control of the LED lamp via smartphone and the HC-05 Bluetooth module connected to Arduino Uno will be displayed. At the end of the thesis, the code for Arduino Uno is described, as well as the way Arduino Uno connects to Bluetooth, i.e. the application and steps needed to make everything functional. The conclusion describes the outcomes and the excepted further development of this technology in the future.