The Adafruit RGB Matrix HAT + RTC makes it easy to drive HUB75-type RGB LED matrices from your Raspberry Pi. This HAT plugs onto any Pi with a 40-pin GPIO header and includes a DS1307 real-time clock, so your Pi can keep accurate time even after reboots or power loss — perfect for clock and time-based display projects.

The HAT features built-in level shifters (3.3 V to 5.0 V) and power protection circuitry that guards against negative, over, or under-voltage from the 5 V supply. This is a mini kit requiring some light soldering to attach the headers — most beginners can complete it in about 15 minutes.

Key Features

• DS1307 Real-Time Clock – Keeps time even when the Pi is rebooted or powered down (CR1220 coin cell required, sold separately)
• Power Protection – Built-in circuitry guards against negative, over, or under-voltage from the 5 V supply
• Onboard Level Shifters – Converts the Pi's 3.3 V logic to 5.0 V for clean, glitch-free matrix driving
• HUB75 Compatible – Works with 16×32, 32×32, and 32×64 RGB LED matrices
• Chainable Displays – Connect multiple matrices for longer displays (recommended maximum 32×128)

Compatibility

• Supported Pi Models – Raspberry Pi Model A+, B+, Pi 2, and Pi 3 (any 40-pin GPIO header model)
• Matrix Type – HUB75 RGB matrices only (not for NeoPixel, DotStar, or other addressable LEDs)

Ideal For

• Time displays and clocks with accurate RTC timekeeping
• Scrolling text displays and signage
• Mini LED video walls and art installations
• Information dashboards and status boards

Package Contents

• 1× RGB Matrix HAT PCB (surface-mount parts pre-assembled)
• 1× 2×20 female socket connector
• 1× 2-pin terminal block
• 1× 2×8 IDC socket connector

Resources

• Adafruit RGB Matrix HAT + RTC Guide