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PCA9306 Module with Arduino Uno Tutorial

C
circuitdigest

14 views • Jan 24, 2026

Description

Learn how to connect a PCA9306 Module with Arduino Uno so that devices with different voltage levels can talk to each other safely.
Read more : https://circuitdigest.com/microcontroller-projects/interfacing-pca9306-module-with-arduino-uno
Arduino Uno works on 5V, but many sensors work on 3.3V. If you connect them directly, the sensor can get damaged.

The PCA9306 module solves this problem by converting voltage levels automatically.

#arduino #arduinouno #PCA9306 #tutorial #I2C #interfacing

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