50pcs IIC I2C TWI SPI Serial Interface Board Port 2004 LCD1602 Adapter Plate LCD Adapter Converter Module PCF8574 For Arduino

[xlmodel]-[photo]-[0000]This product comes with 50 pieces of high-quality PCF8574 LCD adapter converter modules, which is a practical serial interface conversion board specially designed for LCD1602 and LCD2004 liquid crystal displays. Equipped with professional PCF8574 chip, this adapter plate can convert the parallel data interface of the LCD screen into a simple IIC/I2C/TWI serial interface, which greatly saves the usage of mainboard I/O pins and effectively solves the problem of insufficient pins during Arduino project development. It is an essential auxiliary module for LCD screen wiring optimization and electronic DIY production. The upgraded interface board supports I2C and TWI communication protocols, with stable transmission signal and strong anti-interference ability. Compared with the traditional parallel connection method, this serial adapter module only needs 4 wires for power supply and signal transmission, which simplifies the complicated wiring steps, makes the circuit arrangement neater and reduces wiring errors. The module is preset with adjustable potentiometer, which can freely adjust the LCD screen contrast to meet different light environments and viewing angle requirements, bringing a clearer display effect. Made of high-quality flame-retardant PCB board and original electronic components, this LCD adapter features stable performance, low power consumption and long service life. The board has precise welding points, good electrical conductivity and no current leakage. It adopts compact mini size design, which is easy to install, stack and fix without taking up extra space. The wide working voltage range (5V) is perfectly compatible with Arduino series main control boards, and it can work stably for a long time without heating and signal delay. This universal LCD conversion module is widely compatible with LCD1602, LCD2004 and other common character liquid crystal displays. It is widely used in intelligent monitoring displays, DIY electronic production, student teaching experiments, industrial control display equipment, intelligent instrument panels and other scenarios. The batch packaging of 50 pieces provides cost-effective purchasing options for electronic enthusiasts, laboratory teaching, electronic maintenance and small batch production. Every PCF8574 adapter module has passed strict factory quality inspection to ensure flawless welding and stable communication. With simple wiring, strong compatibility and high cost performance, it is the best matching accessory for Arduino LCD display projects, effectively improving the efficiency of circuit development and production.