This thesis presents the development of a device designed to overcome certain drawbacks of infrared remote control. While being used in every household, infrared remote controls require a clear sight of the target, and due to different protocols, nearly every device needs a specific remote control to operate.
The device presented in this thesis is intended to help resolve these problems. By incorporating an infrared and Bluetooth communication module, commands for various appliances can be sent using an arbitrary mobile device, providing a user-friendly way of remote control.
The thesis gives an overview on the design of different hardware modules of the device focusing on low power consumption. Beside the communication modules, the dual power supply circuitry and supplementary elements for interfacing a microcontroller are presented in details. Along with functional design, PCB plans are also summarized.
The second part of the thesis deals with software design, including the development of the embedded software modules implementing infrared and Bluetooth communication and the Android mobile application for controlling the device. Operation of the remote control device is demonstrated by real-life tests.