Drew Fustini @ Element14 shared Adafruit 8×8 LED matrix controlled by BeagleBone Black:
Similar to my previous post on Interfacing BeagleBone Black with Adafruit 7-segment LED display, I have hooked up the Adafruit 8×8 LED matrix with I2C “backpack”. This means the matrix is connected with just 4 wires (3.3VDC, GND, SDA, SCL) to the BeagleBone Black (e.g. BBB) which is mounted on the Adafruit BeagleBone Black Proto Plate.
And like with the 7-segment LED “backpack”, the Python module that Adafruit wrote for the Raspberry Pi works with the BeagleBone Black as well (hooray for the common abstraction of Linux and Python).
I shot a video of it running the Adafruit_8x8.py example program. (above)
Featured Adafruit Product!
Adafruit Mini 8×8 LED Matrix w/I2C Backpack – Red: What’s better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8×8 matrix or a 4-digit 7-segment display. Matrices like these are ‘multiplexed’ – so to control 64 LEDs you need 16 pins. That’s a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there’s a lot of wiring to set up and they take up a ton of space. Here at Adafruit we feel your pain! After all, wouldn’t it be awesome if you could control a matrix without tons of wiring? That’s where these adorable LED matrix backpacks come in. We have them in two flavors – a mini 8×8 and a 4-digit 0.56″ 7-segment. They work perfectly with the matrices we stock in the Adafruit shop and make adding a bright little display trivial. (read more)