Logic level shifter

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

This bi-directional module works with 2.8V and 1.8V devices and can be transmitted bi-directional between high logic voltage and low logic voltage with 4 channels.

Each logic level converter can convert 4 pins on the high side into 4 pins on the low side, with two inputs and two outputs for each side.