The I2C Connector Module Board, equipped with the PCF8574 I2C chip, is designed to facilitate the conversion of I2C serial data to parallel data for LCD displays. This module is compatible with 16×2 and 20×4 character display modules that support 4-bit mode. It allows up to 8 modules on a single I2C bus, providing flexibility and expandability. The module also features a controllable backlight via a jumper and an adjustable display contrast through an onboard potentiometer, making it a versatile addition to any project.
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