Bagua Lamp | Lighting Design | Lichuang Panel Printing

Write an introduction. I made a Bagua lamp that stops randomly. The program is very simple and can be used to learn.
The panels were printed very well at Galicon! ! !
Effect: https://www.bilibili.com/video/BV1YW4y1R7Gu/?spm_id_from=333.337.search-card.all.click
 
 
The program is as follows:
// Define the corresponding relationship between the 74HC595 chip pins and the Arduino pins #define DS 8# OE 7#define STCP 6#define SHCP 5
// Define the data to be output byte data[] = { 0b11111110, 0b01111111, 0b10111111, 0b11011111, 0b11101111, 0b11111101, 0b11111011, define 0b1111 0111,};


void setup() {randomSeed(analogRead (0)); // Initialize the 74HC595 chip pin pinMode(DS, OUTPUT); pinMode(OE, OUTPUT); pinMode(STCP, OUTPUT); pinMode(SHCP, OUTPUT); pinMode(2, INPUT_PULLUP); // Close Output enable digitalWrite(OE, LOW);

        for (int i = 0; i < 8; i++) { digitalWrite(STCP, LOW); shiftOut(DS, SHCP, MSBFIRST, 0xff); digitalWrite(STCP, HIGH); } }

void loop() { // High-speed loop for 3 seconds if (digitalRead(2) == 0) { int stop = random(8); // Define at which light to stop for (int a = 0; a < 11; a++) { for (int i = 0; i < 8; i++) { digitalWrite(STCP, LOW); shiftOut(DS, SHCP, MSBFIRST, data[i]); digitalWrite(STCP, HIGH); delay(a * 10); } if (a == 10) { for (int a = 1; a < 6; a++) { for (int i = 0; i < 8; i++) { digitalWrite(STCP, LOW); shiftOut( DS, SHCP, MSBFIRST, data[i]); digitalWrite(STCP, HIGH); delay(a * 100); } } for (int loop_end = 1; loop_end < 9; loop_end++) { if (loop_end == stop) { digitalWrite(STCP, LOW); shiftOut(DS, SHCP, MSBFIRST, data[stop - 1]); digitalWrite(STCP, HIGH); break; } else { digitalWrite(STCP, LOW); shiftOut(DS, SHCP, MSBFIRST, data[loop_end - 1]); digitalWrite(STCP, HIGH); delay(600); } } } } }}