The master pulls the SDA line low while SCL remains high.
Data is sent in 8-bit bytes, most significant bit first, with each byte followed by an ACK/NACK bit.
The master sends the 7-bit unique address of the target slave, followed by a R/W bit (0 for write, 1 for read). I2C Overview
Multiple masters can control the same slave, and multiple slaves can reside on the same bus.
The master releases the SDA line to high while SCL is high, signaling the end of transmission. Advantages and Limitations Understanding I2C The master pulls the SDA line low while SCL remains high
I2C communication is master-controlled. The master initiates, manages, and terminates communication, generating the clock signal.
Each slave device has a unique 7-bit (or 10-bit) address, eliminating the need for complex Chip Select (CS) lines used in SPI. Multiple masters can control the same slave, and
SDA and SCL are connected to a voltage source via pull-up resistors, allowing devices to pull the lines low without creating short circuits.