Liquid Crystal Displays
Abstract
This chapter discusses the types of information which needs to be conveyed to a user by an embedded system. In particular, having previously looked at light emitting diode technology, liquid crystal displays (LCDs) are used to allow detailed messages to be visually output by an embedded system. Simple alphanumeric displays are evaluated in detail to consolidate some of the previous topics, such as modular programming and designing the hardware connections. Exposure to a detailed data sheet is also covered to interface the LCD from very basic principles. Predefined mbed libraries are used to enable simpler control methods and to allow interfacing with more complex pixel displays and color LCDs.
Keywords
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