LED MATRIX
PATTERN GENERATOR

Matrix pattern generator intended for shift registers

Design grid

Click and drag to draw your pattern.

PRESETS

No saved presets yet.

ANIMATION

SCRIPT

42×11 matrix / 8 shift regs (6 col + 2 row) / MSB FIRST

COLS

ROWS

BIT ORDER

/* LED Matrix — 42×11 px — Arduino PROGMEM */
#include <avr/pgmspace.h>

#define MATRIX_ROWS      11
#define MATRIX_COLS      42
#define MATRIX_BPR       6

const uint8_t pattern[11][6] PROGMEM = {
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  0 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  1 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  2 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  3 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  4 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  5 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  6 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  7 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  8 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* row  9 */
  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }  /* row 10 */
};

/* Read helper: pgm_read_byte(&pattern[row][byteIdx]) */