TOPCUS 4 Channel IIC I2C Logic Level Converter Bi-Directional Module 5V to 3.3V

TOPCUS 4-Channel IIC/I2C Logic Level Converter Bi-Directional Module (5V ↔ 3.3V) Product Description The TOPCUS 4-Channel IIC/I2C Logic Level Converter is a compact bi-directional voltage level shifting module designed to safely interface 5V and 3.3V logic devices. It automatically converts signals in both directions, making it ideal for connecting Arduino, ESP8266, ESP32, Raspberry Pi, STM32, and other microcontrollers with sensors, displays, and communication modules operating at different voltage levels. Built using MOSFET-based bi-directional level shifting technology, this module supports popular communication protocols such as I2C, SPI, UART, 1-Wire, and general-purpose GPIO signals, protecting low-voltage devices from damage caused by higher voltage levels. Features 4 independent bi-directional logic level conversion channels Converts signals between 5V and 3.3V automatically Supports 1.8V, 2.8V, 3.3V, and 5V logic systems Compatible with I2C, SPI, UART, 1-Wire, and GPIO interfaces MOSFET-based design for reliable signal translation Breadboard-friendly with 2.54 mm pin spacing Compact size for embedded and DIY projects Easy to use with clearly labeled HV, LV, and GND pins