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Arduino sample library

I2C Scan 22

Find I2C device addresses for sensors, displays, and expanders.

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Source code and build tools are available in the protected platform workspace.

How it works

Discover I2C addresses on the board SDA/SCL bus.

  1. Wire SDA and SCL using the board-specific map.
  2. Share GND between all I2C devices.
  3. Run the scanner and open Serial Monitor.
  4. Use the printed address in later sensor/display sketches.

Connections

PinConnect toNote
SDA / SCLI2C sensor, OLED, RTC, or expanderUse the board-specific SDA/SCL pins from the mapping table.

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