The bi-directional logic level converter is a small device, which can safely steps down 5V signals to 3.3V and steps up 3.3V to 5V at the same time.
This level converter works with 2.8V and 1.8V devices, it can bidirectionally transfer with 4 channels between high logic voltage and low logic voltage.
Each logic level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.
How to use it:
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.
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.