Itead has developed the Nextion touchscreen displays for Human Machine Interface (HMI) applications. The Nextion TFT board requires only one serial port to communicate. The Nextion editor has mass components such as button, text, progress bar, slider, instrument panel etc. to enrich the interface design. The drag-and-drop function ensures that you have to spend less time in programming. With the help of this WYSIWYG editor, designing a GUI is a piece of cake.