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  • Author Author: fustini
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Adafruit 8x8 LED matrix controlled by BeagleBone Black

fustini

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Similar to my previous post on Interfacing BeagleBone Black with Adafruit 7-segment LED display, I have hooked up the Adafruit 8x8 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 :

image

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 image):

https://github.com/adafruit/Adafruit-Raspberry-Pi-Python-Code/blob/master/Adafruit_LEDBackpack/Adafruit_8x8.py

 

I shot a video of it running the Adafruit_8x8.py example program:

 

Adafruit 8x8 LED matrix controlled by BeagleBone - YouTube

 

I'm looking forward to putting this display to use in a project.

 

Cheers,

Drew

http://twitter.com/pdp7

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  • Hi Drew,

     

    Nice demo.

    I was wondering when someone would begin mixing and matching Shields, Capes and what ever between various MCU devices.

    Almost all of them support the basic interface requirement.

    All you need to do is build an interface cable to match up the pins and then modify the software accordingly.

     

    DAB


Comment

  • Hi Drew,

     

    Nice demo.

    I was wondering when someone would begin mixing and matching Shields, Capes and what ever between various MCU devices.

    Almost all of them support the basic interface requirement.

    All you need to do is build an interface cable to match up the pins and then modify the software accordingly.

     

    DAB


Children
  • in reply to DAB

    I really like it when modules use standard interfaces like SPI or i2c.  I also like how Adafruit has developed Python GPIO library (PyBBIO) to act the same as the Pi GPIO library (RPi.GPIO) so that their Raspberry Pi Python examples work accross both.  And for I2C, Pi and BBB use the same Python module smbus.