把“网页画好的点阵数据”搬到 UNO、STM32 或其它平台

#include <Adafruit_NeoPixel.h>

// 16x16 / 256 灯矩阵：GPIO27 -> 330R 电阻 -> DIN
#define LED_PIN       27
#define MATRIX_WIDTH  16
#define MATRIX_HEIGHT 16
#define NUM_LEDS      (MATRIX_WIDTH * MATRIX_HEIGHT)

Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);

uint16_t xy(uint8_t x, uint8_t y) {
  // 本项目灯板按 Z 字形 / 横向走线整理；如果显示反了，再改这里。
  return y * MATRIX_WIDTH + x;
}

void setup() {
  strip.begin();
  strip.setBrightness(20);   // 256 灯先低亮度测试，不要一上来满亮
  strip.clear();
  strip.show();
}

void loop() {
  strip.clear();
  strip.setPixelColor(xy(4, 4), strip.Color(0, 180, 255));
  strip.setPixelColor(xy(11, 4), strip.Color(0, 180, 255));
  for (uint8_t x = 5; x <= 10; x++) {
    strip.setPixelColor(xy(x, 10), strip.Color(255, 120, 0));
  }
  strip.show();
  delay(1000);
}