Adafruit RGB Matrix + Real Time Clock HAT for Raspberry Pi

OK we're onto the fun part now! Be sure you have completed the Assembly step before continuing, the soldering is not optional. Before connecting any cables, however, it makes sense to get the soldering out of the way if needed. If you're using a 64x64 RGB matrix and either a Bonnet or a Rev C HAT, use your soldering iron to melt a blob of solder on the bottom solder jumper so the middle pad is 'sh