https://home.roboticlab.eu/ 2026-04-04T13:23:10+00:00 https://home.roboticlab.eu/ https://home.roboticlab.eu/_media/wiki/logo.png text/html 2020-07-20T09:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://home.roboticlab.eu/en/examples/display/lcd?rev=1595235600&do=diff LCD screen Necessary knowledge: [HW] User Interface Module, [LIB] Alphanumeric LCD, [LIB] Graphic LCD, [LIB] Delay Theory LCD screens, which are used with microcontrollers, can be divided mainly into a two parts: a text or alphanumeric LCD and a graphic LCD. Alphanumeric LCD is liquid crystal display, with the purpose of displaying letters and numbers. In basic LCD is used liquid crystal which is placed between transparent electrodes, and which changes the polarization of the passing li… text/html 2020-07-20T09:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://home.roboticlab.eu/en/examples/display/lcd_alphanumeric?rev=1595235600&do=diff Alphanumeric LCD Necessary knowledge: [LIB] Alphanumeric LCD, [LIB] Delay, [PRT] Periodic interrupt Theory Alphanumeric LCD is liquid crystal display, with the purpose of displaying letters and numbers. In basic LCD is used liquid crystal which is placed between transparent electrodes, and which changes the polarization of the passing light in electrical field. The electrodes are covered by polarization filters, which assure that only one way polarized light can pass the screen. If the liqui… text/html 2020-07-20T09:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://home.roboticlab.eu/en/examples/display/lcd_graphic?rev=1595235600&do=diff Graphic LCD Necessary knowledge: [HW] User Interface Module, [LIB] Graphic LCD, [LIB] Delay, [PRT] Alphanumeric LCD Theory Graphical LCD liquid crystal display is a display which allows displaying pictures and text. Its construction is similar to the alphanumerical LCD, with a difference that on the graphic display all pixels are divided as one large matrix. If we are dealing with a monochrome LCD, then a pixel is one square segment. Color displays’ one pixel is formed of three subpixels. Eac… text/html 2020-07-20T09:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://home.roboticlab.eu/en/examples/display/segment_display?rev=1595235600&do=diff 7-segment LED display Necessary knowledge: [HW] User Interface Module, [LIB] 7-segment LED Display, [LIB] Delay [PRT] Light-emitting Diode Theory 7-segmented LED number-indicator is a display which consists of 7 LEDs positioned in the shape of number 8. By lighting or switching off the corresponding LEDs (segments), it is possible to display numbers from 0 to nine as well as some letters.