I'm pretty new to this so bear with me. So I have an Arduino Uno and started developing a sketch. I'm noticing I may need more GPIO ports and possibly an Ethernet port.
I have 2 options - 1: get a port expander chip sold on Adafruit, and an Ethernet Shield. 2: get an Arduino Mega
So the question is, can I upload the same sketch used on the Uno and continue on with the Mega? I haven't seen much mention of the Mega so I'm not sure if it is a different animal altogether or a part of the same family.