I recently got the Adafruit gfx 2.8" display, which works fine.
It's quite obvious that it requires almost all of the pins on the UNO. However, I don't understand what are the 18 avaliable "soldier ports" are at the bottom of the Adafruit shield.
Can these ports be used with sensors, ie: push button, so you wouldn't need to plug anything else into the UNO board? What do these holes do? I'm unable to find out, as it doesn't seem to be a common shield, most Adafruit shields don't seem to have those ports.
If these ports do nothing, should I saw them off - save space?