The LCM1602K-NSW-BBW is a module with an LCD display manufactured by Longtech. It is RoHS compliant and is designed to provide a high-quality product with long-lasting performance. The module features a large 16x2 display, with a viewing angle of 180° and a contrast ratio of 10:1. It is also equipped with a backlight, which can be adjusted from 0 to 4 volts. The module can be powered by a DC voltage of either 3V or 5V, and the data interface is based on I2C. The module includes an inbuilt set of fonts and instruction set, but custom symbols and fonts can also be used with it.