User Manual

Test Example Code

We have example code ready to go for these displays. It's compatible with the Arduino Uno or Mega…but

not

other

boards like the Leonardo, nor “Arduino-like” boards such as Netduino…programming gurus

might

be able to port it to

other microcontrollers by adapting the C++ source, but as written it does some pretty low-level, non-portable things.

Two

libraries need to be downloaded and installed: first is the RGB Matrix Panel library (https://adafru.it/aHj) (this

contains the low-level code specific to this device), and second is the Adafruit GFX Library (https://adafru.it/aJa) (which

handles graphics operations common to many displays we carry).

Both libraries can be found and installed using the

Arduino Library Manager (Sketch→Include

Library→Manage Libraries…). Search for “gfx” and “rgb

matrix panel” and install the corresponding Adafruit

libraries.

Now you are ready to test! Open up the IDE and load File→Examples→RGBmatrixPanel→testcolors_16x32 (for the

16x32 panel) or File→Examples→RGBmatrixPanel→colorwheel_32x32 (for the 32x32 panel).

If using an Arduino Mega 2560, in addition to wiring changes previously mentioned, you'll need to make a small

change to each of the example sketches. This line:

The library works with a LIMITED NUMBER of boards: Arduino Uno, Mega, Zero, Adafruit Metro M0 and Metro

M4. Other boards (such as the Arduino Leonardo) ARE NOT SUPPORTED.

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