“No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.”
—Isaac Asimov
An Overview of SPI Peripherals
The Serial Peripheral Interface bus (SPI) is a high-speed serial bus that is commonly used to interface with external memory, sensors, and many other devices. The SPI bus at the hardware level requires the following:
a Master Output Slave Input (MOSI) line
a Master Input Slave Output line (MISO) line
a clock (CLK) line
at least a single slave select (SS) line
Every slave device that communicates with the master, ...
