I2C

Inter-Integrated Circuit - a serial communication protocol using two wires (SDA and SCL) for connecting multiple devices on a bus.

protocol

I2C

I2C (Inter-Integrated Circuit) is a serial communication protocol for connecting multiple devices.

Definition

I2C uses two wires: SDA (data) and SCL (clock) to create a bus where multiple devices can communicate. Each device has a unique address. Operates at standard Voltage levels (3.3V or 5V).

Key Points

  • Two-wire interface (SDA, SCL)
  • Multiple devices on same bus
  • Slower than SPI but simpler
  • Common in sensors and displays