PCA9306 I2C Bidirectional Voltage-Level Translator Breakout Board Module (Logic Level Converter)

Alright makers and electronics tinkerers, if you've ever tried to connect a 5V Arduino to a 3.3V sensor over I2C, you know you need a level shifter.

This little breakout board is built around the PCA9306 chip, and it's perfect for that job.

It's a bidirectional I2C-bus voltage-level translator.

Basically, it lets you safely connect components running at different voltages (like 5V and 3.3V) so they can talk to each other without letting the magic smoke out.

It's a simple, unbranded board, but it uses the standard PCA9306 IC.

Just wire it up between your devices, and it handles the translation automatically.

A must-have for any workbench when you're mixing and matching components from different voltage logic families.