Pololu - 3.8. Raspberry Pi interface and level shifters
3 x / 5 x 4-Channel Logic Level Converter Shifter Level Converter I2C IIC Bidirectional 5 V ~ 3.3 V for Arduino Raspberry Pi Micro-controller, mm-trade. : Amazon.de: Business, Industry & Science
Made myself a little led controller this morning. D1 mini, logic level converter and buck converter for either 5v or 12v setup. Flashed with wled and setup with mqtt and home assistant. :