An implementation of CheerLights using an Adafruit USB+Serial Backpack.
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For background on CheerLights see:

The USB+Serial Backpack will need to be connected to a computer with Internet access via USB.

The Perl script will loop forever (well, until you kill it, or it dies) and request the file at which will tell it the current color. The Perl script then prints the message (in the appropriate color) to the Adafruit USB+Serial Backpack.

On the Perl side you will need the Device::SerialPort and LWP::Simple modules.

The script will cycle through all the colors.

The script will clear the text from the display.

This code is released under the GPL.

Pete Prodoehl Twitter: @raster