Meant for usage with Arduboy and drawImage. This tool compiles a full folder of png files into a single assets.h file of character arrays in PROGMEM suitable for passing to the core libraries drawBitmap function.
Requires Ruby 2.0+.
gem install chunky_png
# clone git repository and put img2ard.rb in your path
Yes, I need to convert this to a Ruby gem, but so much to do.
cd source_folder
ls assets
./img2ard.rb
cat assets.h
After compiling all your assets will be locating in assets.h and ready for use in your sketch.