Univerzální GUI využívající malé inteligentní displeje připojené k Raspberry Pi

Abstract

One way to communicate with the operator is to display information on the display. The variety of available displays and their features causes problems with their implementation during design. This work addresses the design and creation of a versatile and easily extensible library that provides developers with simplicity in handling small displays in their own application. In this work I focus mainly on the operation of intelligent displays, which are connected via UART, I2C and SPI interfaces. The created library is debugged on a single-chip computer Raspberry Pi. Part of the presented solution is also a sample application showing the capabilities of the used displays.

The library has unified communications between two display brands, 4D Systems and Nextion. It also covers UART communication and is pre-configured to extend I2C and SPI communication. The library is designed to be easily extended with additional display brands and communication protocols. In the library, you can write elements and into elements and retrieve values using simple methods. This method will simplify the entire communication process with display. Next it is necessary to have a class with the required communication protocol, a class with the required display brand and also to create the appropriate configuration file.