HiLetgo 10pcs 4 Channels IIC I2C Logic Level Converter Bi-Directional 3.3V-5V Shifter Module for Arduino

in this video I'm going to show you how we can use this logic shifter module this module is used if we have to interface 5 volts from this Arduino board in which the pins are all 5 volts to some modules that requires 3.3 volts like this sh t 21 temperature and humidity sensor which operates on 3.3 volts this will be handy on that on my application I will not use that sensor the temperature limited sensor but this module that I have here which is a blood pressure monitor sensor I already have the lines ready the negative positive the SDA and SEL which are I squared C lines that's why this will be handy because I squared C bizarre bi-directional you use this level shifter if you need a bi-directional lines if not a voltage divider from your 5 volts to 3.3 might be enough you will connect the ground here which is the negative and the LV for the positive that's L D stands for low voltage th