All character LCDs will have 16 pins among which 8 are data pins through which data or commands are passed into the LCD registers. The main advantage of using a character LCD instead of a seven segment display and other multi-segment LEDs is that there is no limitation in displaying special & custom character animations and so on.
The choice for the module depends on the requirement. Several other LCD modules are also available like 20×4 dimension LCD which can display 20 characters per line and 4 such lines would be available. The module will consist of 2 rows each with 16 columns which can display 16 characters. Character LCDĪ 16×2 character liquid crystal display (LCD) module is the most basic electronic display module which is widely used.
This article explains 4 bit LCD interfacing with PIC Microcontroller. A character LCD can be configured in 8 bit or 4-bit mode in which 8 data pins and 4 data pins are used respectively this feature allows efficient use of the digital I/0 pins of the microcontroller. In the previous chapter, we discussed how a character LCD is interfaced with a PIC microcontroller in 8-bit mode.
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