Logic Level Converter bi-directional is a small device that safely 5V signals to 3.3 Sales and 3.3V to 5V at the same time. This logic level converter ook Works with 2.8V and 1.8V. Each level converter has the possibility for Converting 4 pins on the high side to 4 on the low side, met with two inputs and two outputs for each side.
Logic Level Converter bidirectional is very easy to use. The board must be powered from the two voltages sources (high voltage and low voltage) die your system use. High voltage (5V for example) the "HR" pin, low-voltage (3.3V for example) 'LV' and from the system to the "GND" pin.