We currently have the following products in stock:

4-digit shield

ShieldStudio 4-digit shield V1.0 :


ShieldStudio 4-digit shield is a 4-digit LED matrix display shield for:

  • Arduino – Uno and  Decimilia and compatible clones.
  • Not pin compatible with Arduino Leonardo – But if you request a headerless board the 4 pins used could be wired individually to any I2C port. +5 an gnd required.
  • Netduino

It has a built in character map and LED multiplexing that minimizes processor loading and code space.  The driver chip uses is  MAX6953 from Maxim IC which supports the following features:


  • Arduino compatible shield
  • 140 LEDs – 4 1.5 inch(3.8cm). Red 5 x 7 Matrix Displays
  • Low power – No external power required. Power sourced from Arduio.
  • Easy to use – requires very little code space.
  • Easy to program – Library with advanced function available from our downloads section.
  • Fast response – 400kbps 2-Wire Interface Compatible with I2C 2.7V to 5.5V operation
  • Uses MAX6953 driver chip
    • Built-In ASCII 104-Character Font
    • 24 User-Definable Characters Available
    • Automatic Blinking Control for Each Segment
    • Low-power shutdown 70uA mode
    • Display Blanked on Power-Up
    • Test mode that forces all LEDs on.
    • LED drivers are slew-rate limited to reduce EMI.

ShieldStudio Library: See downloads section

I like it.  How can I get one? See our store