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Adafruit 15x7 CharliePlex LED Matrix Display FeatherWing - Red

The Adafruit 15×7 CharliePlex LED Matrix FeatherWing in Red adds a bright, compact 105-LED grid to any Feather board. The onboard IS31FL3731 driver handles all the charlieplexing over I2C, with 8-bit (256-level) PWM dimming on every individual LED — no complex wiring needed.

The driver chip includes RAM for 8 separate frames of display memory, allowing you to set up animations and flip between them with a single command. Since it communicates over I2C, only the SDA and SCL pins are used, leaving the rest of your Feather's GPIO free for other peripherals.

Key Features

  • 15×7 LED Matrix – 105 red charlieplexed LEDs
  • IS31FL3731 Driver – I2C control with individual 8-bit PWM dimming
  • 8 Animation Frames – Onboard RAM for storing and switching display frames
  • Works with Any Feather – Shared I2C bus leaves other pins free
  • 3.3V Operation – Direct compatibility with Feather boards

Also Available

Ideal For

  • Scrolling text and status displays on Feather projects
  • LED animations and lighting effects
  • Data visualisation and bar graphs
  • Wearable electronics with visual feedback

Package Contents

  • 1× Adafruit 15×7 CharliePlex LED Matrix FeatherWing – Red
Note: Feather board not included. Soldering required for assembly.

Specifications

  • LED Grid – 15×7 (105 LEDs)
  • LED Colour – Red
  • Driver – IS31FL3731
  • PWM Resolution – 8-bit (256 levels) per LED
  • Animation Frames – 8
  • Interface – I2C
  • Operating Voltage – 3.3V
  • Form Factor – Adafruit FeatherWing

The Adafruit 15x7 CharliePlex LED Matrix Display FeatherWing - Red appears in the following collections:

SKU AF-3134