ofxLEDMatrix

Repository to adapt this library into Openframeworks.
The goal is to use the Adafruit Leds Matrix & bonnet with Openframeworks on raspberry-Pi 3 model B+.

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Getting Started

List of Material

item	link
Raspberry pi 3 model B+	https://www.raspberrypi.org/products/raspberry-pi-3-model-b-plus/
Matrix Bonnet	https://www.adafruit.com/product/3211
Matrix of Leds	https://www.adafruit.com/product/3649
SDCard	amazon link
Power Supply	https://www.adafruit.com/product/1466

Installs

1)Installing OpenFrameworks

Get the latest OpenFrameworks version from here(linux armV6), and follow this tutorial to get set up with the openframeworks on raspberry Pi.
Make sure you can run some of the examples before proceeding any further (for example : OF_Install_Directory/examples/3DPrimitivesExample/).

2) Installing

Get the latest version of the rpi-rgb-led-matrix from here.
Follow the tutorial on the readme page from the Let's do it section.
Make sure you can run a demo from the example-api-use section.
Just

cd example-api-use
make
sudo ./demo

Make a note of the path to the root directory of the rpi-rgb-led-matrix :

#from the root directory of the rpi-rgb-led-matrix repo :
pwd
#gives me : /home/pi/rpi-rgb-led-matrix-master
#copy into the clipboard:
# install xclip : sudo apt-get install xclip
pwd | xclip -i

3) Addon

Add this repository to your Openframeworks addon folder in :

cd OF_Install_Directory/addons/
git clone https://github.com/pierrextardif/ofxLedMatrix

Then change the path of the addons.make using the path copied earlier:

cd ofxLEDMatrix/
sudo nano addon_config.mk

Replace RGB_LIB_PATH with the path copied.

Example

Just try running the example.

Testing on other machine

Try copying the example on an other (more powerful) machine and running it, transforming the line :

//#define COMPUTERWORK

into

#define COMPUTERWORK

so the graphics can be worked on, on a faster machine ( compilation), then uploaded on the PI.

Use the Lis3dh

The example given by adafruit includes an accelerometer.
In order to use it I have included the code they have used in their example and mapped it to the movements of the ofEasyCam for zooming in/out.

Wiring

You can wire the acelerometer using this diagram :

Author

• pierre Tardif codingcoolsh.it 💾

License

This project is licensed under the MIT License - see the LICENSE.md file for details.

Acknowledgments

• Adafruit Tutorial
• Henner Zeller

Next

Adding the libray precompiled straight into the `/lib` folder of the repo (no external install).