Review on Songhe 4 Channels IIC I2C Logic Level Converter 🔌 Bi-Directional Module: Efficient Voltage Shifter for Arduino Green Board (10PCS) by Patrick Biletnikoff

There are no questions from the first connection. Not much to talk about - make sure you connect the HV, LV and GND pins and the signals are bouncing up and down (3v3 <-> 5v) without error. The circuit boards are clean and have easy-to-read labels. I used the first one to switch control signals from ESP8266 (3v3) to WS2812b (5v). This design is good when you don't need to enable/disable a switch in software (e.g. delay its arrival). online until the microcontroller boots up) because unlike some other logic switches it doesn't have a pin that needs to be pulled up to turn it on - it just needs to power both sides with the appropriate power supplies. They are perfect for my projects.