Item description for Songhe 4 Channels IIC I2C Logic Level Converter Bi-Directional Module 3.3V to 5V

New
Take the high voltage (5V) and low voltage (3,3V) for example
5V connects to HV pin;3.3V connects to LV pin;Ground from the system connects to GND pin.
The level converter is very easy to use, it needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using.