Chapter 10

Using Liquid Crystal Displays (LCDs)


In microcontroller-based systems we usually want to interact with the system, for example, to enter a parameter, to change the value of a parameter, or to display the output of a measured variable. Data is usually entered to a system using a switch, a small keypad, or a fully blown keyboard. Data is usually displayed using an indicator such as one or more LEDs, 7-segment displays, or LCD-type displays. LCDs have the advantages that they can display alphanumeric as well as graphical data. Some LCDs have 40 or more character lengths with the capability to display data in several lines. Some other LCDs can be used to display graphical images. This chapter describes the use of LCDs with the Nucleo-F411RE ...

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