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FAQ › Storage & Memory › ESP32 I2C: Pins, Addresses, Scanner

// i2c · faq ESP32 I2C: Pins, Addresses, Scanner Filed under: ESP32 · I2C · Updated August 2026 Two wires, dozens of devices, one bus. This covers why should you use i2c for the esp32 board, how to find i2c port esp32, running both hardware buses, and the scanner sketch that solves most address m

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