These are some great DIY projects that you can do for cheap.

With the BlueDisplay library you create the GUI for your application, e.g. Graphics, Text, Buttons, Sliders and Charts on the Arduino itself. No Android programming required! The Arduino is connected ...

Abstract: In today's world, energy efficiency and smart technologies are becoming increasingly important. Lighting is a significant contributor to energy consumption, and traditional lighting systems ...

Abstract: This article presents the design and implementation of an Internet of Things (IoT)-based remote health monitoring system for the estimation of blood pressure (BP), heart rate (HR), and blood ...