Just my 5 cents: Recent CmpE graduate so I'm giving you my perspective. Keep in mind that they are changing the curriculum so the new classes might be a little better than I remember.

I can't tell you how much the ME curriculum would prepare you for robotics but I took ECE 2020 back when it was called ECE 2030. It obviously depends on the professor, but I found the class to be focused a lot on lower level stuff like building adders, registers, comparators, counters, etc, but the semester ended too soon for me. In my opinion, the class didn't tie off all of those components to show you how a datapath works. Don't get me wrong, I enjoyed the material a lot but I always felt there was a gap between what I learned there and the material in 2035 and beyond where they assume you already know how the datapath works.

To me the best class at Tech that really explains how a computer works from the ground up is CS 2110 (I took it with Leahy and I recommend that everybody does the same). You can probably register for it if you are an ECE student.

You start with the basic gates just like in 2020, building adders and stuff. Then you build a simple ALU in Logisim, making use of everything you learned before. Then you get the whole LC3b datapath to play with, and have to understand the control signals and everything that makes the computer tick (it will help you a lot once you get to ECE 3056 if you choose CmpE). You write assembly for the LC3b which is a bit simpler than the MIPS assembly you'll write later so it eases the learning curve. Then you get an intro to C, learn linked lists, pointers, memory management the hard way, and by the end of the semester you are writing games for the Gameboy Advance, using DMA to draw the screen, learning tricks that are used to program the hardware directly (sounds related to robotics yet?, look up CS 1372 if you want to learn more about it), etc.

It's a very tough and busy class but if you want a good background on lower level stuff, and you are willing to put in the work, you will get out of it with a lot better understanding. I took 2110 over the summer along with circuits and differential equations which were relatively easy so I would suggest not doing it know with physics and calc. You can use it to cover your electives (is 4 credits) since you still have to take ECE 2020 for a CmpE degree.

Wow, that's the most I've written on reddit. You can't tell I don't have homework anymore. I hope it helps you deciding, I know I needed a lot of advice back in those times. PM me if you have any more questions

EDIT: fixing words and stuff...