Adafruit 15x7 CharliePlex LED Matrix Display FeatherWing Red

You won't be able to take your eyes off the fascinating patterns created by this Adafruit 15x7 CharliePlex LED Matrix Display FeatherWing. This 15x7 LED display can be combined with any of our Feather boards to create a beautiful, bright grid of 105 Charlieplex LEDs. It even comes with a built-in Charlieplex driver that operates via I2C.

What makes this Wing particularly nice is the I2C LED driver chip, which has the capability to drive each individual LED in a 15x7 grid using PWM, allowing you to create beautiful LED lighting effects without much pin juggling. Just tell the chip which LED on the grid you want to illuminate and at what brightness, and it will take care of everything for you. You get 8-bit (256 levels) for each individual LED.

The IS31FL3731 is a nice little chip and happily runs on 3.3V power. Inside, it has enough RAM for 8 separate images of the screen memory, so you can set up multiple frames of an animation and display them with a single command. Since it uses I2C, it only requires the SDA/SCL pins on your Feather and can share these pins with other I2C devices and sensors.

Details:

* Uses I2C address 0x74 or 0x77
* Product dimensions: 51.0 mm x 23.0 mm x 3.0 mm
* Product weight: 3.8 g.