Introduction - If you have any usage issues, please Google them yourself
Experiment name: SPI driver 74HC595, digital tube display experiment Function Description: With digital display data from 0 to 9999. Experimental Objective: Familiar SPI communication protocol. Master look-up table. Understanding of the human eye' s ability to distinguish the display. Learn to use SPI driver SPI devices 74HC595. Learn how to use the timer timed. Target Chip: ATMEGA128 internal 8M crystal if digital is not high enough refresh rate will be flickering.