DMD Page Loader

Show images on 2 32x16 HUB12 panels.

Hardware Requirements

• Arduino Mega 1560
• 2x 32x16 HUB12 Panels
• SD Card Module
• Rotary Encoder
• SD Card
• (optional) Buzzer

Known-working Panels

Freetronics Red LED Dot Matrix Display Panel 32x16 (Freetronics)

EEEEE P10 Red LED Panel Display (Amazon)

Features

• Auto looping images
• Fixed image
• Variable display brightness
• Settings menu
• FAT32 file system support
• EEPROM saving

DMD File Format

Byte Range	Description
0 (h0)	Page Time Multiplier
1 (h1) ... 1024 (h400)	Image Data (0 = OFF, 1 = ON)

Error Codes

Code	Description
1	SD Card could not be initialized
2	Could not open SD Card Root
3	Could not open SD Card files
4	Failed to load image