LK204-25-R

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LK204-25-R Application Field and Working Principle

The LK204-25-R is a character LCD module from Crystalfontz America Inc. The module has a glass size of 20.3 x 4.2 mm with a viewing area of 18.13 x 3.43 mm. It is considered a 2x20 character LCD module, which means it has two lines with a total of twenty characters. The viewing angle is 12 o’clock for easy viewing.

The LK204-25-R is very easy to use with its integrated driver IC, Samsung KS0066U or equivalent. Along with that, this module also offers 5x8 = 40 dots that give it a resolution of 320 x 64. There is also a backlight which is optional.

The LK204-25-R is used in many different applications. This LCD is mostly used in electronic metering applications such as voltage and current meters. It can be used in medical equipment, point of sale (POS) systems, security systems, industrial control panels, and many more.

This module is mainly used as an indicator to display numerical or alpha-numeric information. It requires a power supply of 5v and a logic voltage of 3.5v. It is also I2C compatible and has a wide temperature range of -20°C to +70°C.

The working principle of the LK204-25-R is fairly simple. The graphics and characters are stored in ROM (read-only memory) and displayed on the panel. The ROM can’t be altered and contains an integrated, fixed set of characters. The module also has an integrated driver IC which controls the voltage of the panel and the current of the LED backlight.

The module can be connected to either a 4 bit or 8 bit interface. When using a 4 bit interface, the processor sends 4 bits of data one at a time. In an 8 bit interface, the processor sends 8 bits of data at once. The data is then stored in the RAM (random access memory). The chip then reads the data and translates it into something readable on the LCD display.

To conclude, the LK204-25-R is a character LCD module which is used in many applications and can be connected to either a 4 bit or 8 bit interface. It has an integrated driver IC and an optional backlight. The module is mainly used to display numerical or alphanumeric information and requires a power supply of 5v and a logic voltage of 3.5v.

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