Serial Peripheral Interface (SPI)
makerSerial Peripheral Interface (SPI) is a synchronous serial communication protocol used for short-distance communication, primarily in embedded systems.
expanded
SPI is a full-duplex communication protocol used to connect microcontrollers with peripherals such as sensors, SD cards, and shift registers. Its application allows for synchronous data transfer over short distances, typically within a single circuit board, where precise timing and high-speed data transfer, up to several megabits per second, are required. SPI operates through a master-slave architecture where one master device can control multiple slave devices via separate chip select lines.
examples
Connecting an MCP3008 analog-to-digital converter to a Raspberry Pi using SPI
Common in maker projects where analog sensor data needs to be read by a Raspberry Pi for processing, providing fast and efficient data transfer.
Interfacing a ST7735R-based color LCD with an Arduino using SPI
Utilized in projects requiring display capabilities, allowing the Arduino to send image data to the screen quickly for rendering via SPI.