TFT with Mega and Uno at the same time.

Projects General Guidance
1

I'm not sure what the pins on the bottom of the tft screen are called but I have all of them connected to the mega like they're supposed to be. I also have a motor shield on the mega. Now I want to connect the 3.3V and the RESET to the connections of an Arduino Uno. Would that be okay? How would I program something like that? Would I use tx and rx?

Question #2 -Can I power other Arduino boards from their 5v pins? For instance power a nano by plugging 5v of the nano into 5v of the mega or uno?

I didnt plan on using the tft like this but if it's possible it could be useful to have on a device like a rover, that moves around and collects data if you don't have it already going to your computer somehow.

WIN_20160516_15_29_41_Pro.jpg

WIN_20160516_15_29_09_Pro.jpg

2

not sure of that the problem is in your question 1. yes, you can connect the pins from board A to board B. if you need better data exchange between the two boards, I might suggest I2C - using pins 4/5 (on the uno, not sure on mega). if the TFT blocks those pins, thats another challenge, but can be handled.

for Q2 - yes.