Interfacing PCA9306 Module with Arduino Uno Interface PCA9306 module with Arduino UNO. Complete wiring diagram, pinout, code & troubleshooting. 5V to 3.3V I2C level shifter tutorial for sensors.

Learn how to interface the PCA9306 I2C level shifter with Arduino Uno to safely connect 5V boards with 3.3V I2C sensors using simple wiring and code.
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