Things to change for 28SOICv4 1) Find new ceramic resonator that runs at 4 MHz that's really small. (done) 2) Make pads of whatever resonator is used BIG enough (done) 3) Put USB connector and SOIC chip on one side, and all other components on other side. (done) 4) Find a better (i.e. taller) switch (done) 5) Make LED footprint pads same as 1206 (not done)