Introduction to SPI:SPI stands for Serial Peripheral Interface, it allows high-speed synchronous data transfer between the ATmega16 and peripheral devices (or between several AVR devices). It has the following properties: Full-duplexThree-wire Synchronous Data Transfer Master and Slave OperationHow It Works:The Master initiates the communication cycle when pulling low...
SPI : Connecting Three Slaves To a Master Microcontroller Using ATmega16