Introduction - If you have any usage issues, please Google them yourself
Lantern simulation program to achieve the following development board left to right are four buttons S1-S4, top to bottom eight lights L1-L8, press S1 key 8 small LED lights to flicker 1HZ frequency, press S2 key 8 parity alternately illuminate light interval 0.3S, press S3 button, L1-L4 and L5-L8 lights alternately illuminate interval 0.2s, press S4 button turns off all the lights.