What is SPI?
SPI is a synchronous serial communication protocol commonly used for data transfer between microcontrollers and external devices.The Serial Peripheral Interface (SPI) is a communication protocol widely utilized for data transfer between microcontrollers and small peripherals, including shift registers, sensors, and SD cards. It employs distinct clock and data lines, along with a select line to identify the specific device for communication. It operates on a master-slave architecture, where the master device controls the communication process and the slave device responds to the master’s requests. How does the Serial Peripheral Interface (SPI) work? Device Selection: The master device (typically a microcontroller) activates a specific slave device by controlling one or more chip select (CS) lines. Clock Signal: The master generates a clock signal (SCK) that synchronizes data transfer. The clock frequency determines the speed of data transmission. Data Transmission: 1.Master S
