Quadcopters

Is there any way of wiring a credit card reader to a phone so people can use a phone with out geting change from there wallet.
I am asking because I do not have a clue how to create some thing like that

Ia there any way of wiring a credit card reader to a phone so people can use a phone with out geting change from there wallet.
I am asking because I do not have a clue how to create some thing like that

Ia there any way of wiring a credit card reader to a phone so people can use a phone with out geting change from there wallet.
I am asking because I do not have a clue how to create some thing like that

I'm looking to make a follow-me quad, does anyone have any walkthroughs on making one? For the record, I'm very technical both electrically and software wise.

Hi. I have made some parts like camera brackets and antenna holders for my quads so far. I've used PLA for some of it, and PETG for the more exposed parts. But even PETG breaks pretty easily in hard crashes. How do you think Polymaker PolyMax PLA (which is a strong PLA type) holds up? Is it tough enough for a frame? Is it stiff enough for a frame?