Inter-Integrated Circuit

Inter-Integrated Circuit (I2C) is a synchronous serial communication protocol that allows multiple devices to communicate over just two wires: a data line (SDA) and a clock line (SCL). It uses a master-slave architecture where one device controls the communication timing and addressing. I2C is commonly used to connect microcontrollers with sensors, displays, memory chips, and other peripherals in embedded systems due to its simplicity and ability to connect up to 127 devices on the same bus.