3DV4 CNC Shield V4 + Nano 3.0 + 3pcs A4988 Reprap Stepper Drivers Set for Arduino

If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. the bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel.