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Elecrow

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An Arduino Uno shield that makes it easy to drive a 16×32 RGB LED matrix panel with a HUB75 connector. Instead of wiring up 12 individual jumper wires, this ...

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An Arduino Uno shield that makes it easy to drive a 16×32 RGB LED matrix panel with a HUB75 connector. Instead of wiring up 12 individual jumper wires, this shield provides a matching 2×8 IDC connector for a clean, reliable connection between your Arduino and the panel.

The shield also includes a DS1307 real-time clock (RTC) chip with a CR1220 coin-cell battery holder, useful for time-based display projects such as clocks and timed animations.

Key Features

  • HUB75 IDC Connector – 2×8 pin header matches the LED panel's input connector
  • 12 Digital I/O Pins – Full colour control of the RGB matrix
  • DS1307 RTC On-Board – Real-time clock pre-wired to A4 (SDA) and A5 (SCL)
  • CR1220 Battery Holder – Keeps the RTC running when power is off
  • 5V Operation – Powered directly from the Arduino
  • Adafruit Compatible – Works with the Adafruit RGBMatrixPanel library

Ideal For

  • Driving 16×32 RGB LED matrix panels from an Arduino Uno
  • LED clocks and timed display projects (using the built-in RTC)
  • Scrolling text, animations, and colour displays

Package Contents

  • 1× RGB LED Panel Driver Shield
Note: This shield is for the Arduino Uno form factor. The 16×32 RGB LED matrix panel and CR1220 battery are sold separately.

Resources

Jargon buster

Plain-language definitions for the technical terms used above.

HUB75
HUB75 is a common connector and signalling standard used by many RGB LED matrix panels. If a controller supports HUB75, it can plug into compatible matrix panels without custom wiring, but you still need to match the panel size and power requirements.
IDC connector
An IDC (insulation-displacement contact) connector clamps onto a flat ribbon cable to carry many signals at once in a neat, keyed bundle. When a product uses an IDC connector it can be joined to a matching ribbon cable without wiring each signal separately, and the keying helps prevent reversed connections.
LED
A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
RGB
Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
RTC
A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
Shield
An add-on board that plugs into a main controller board to give it extra features such as sensing, motor control or communication. Knowing a product supports shields helps you judge whether it can connect neatly into an existing maker-board setup.
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