Im trying to build a machine that would be carried by a drone and drop balls at an interval. Ive done a lot of research but Im still new to this, Im planning on using arduino nano to control the 2 servos I need to operate the dropper. My question is, can I power the arduino and the servos with the same 7.4 volt Lipo battery? It looks like the arduino itself can take the 7.4v with the onboard voltage regulator, but it looks like that it will only output 5v which is not enough to power my serovs (need 6v-7.4v).
1) Can I just split the positive lead from the battery before it gets to the arduino to run the servos?
https://www.dropbox.com/s/p7qqquu15aflcrt/Wiring%20Pattern%201.png?dl=0
2) Ive seen some places people say not to trust the onboard voltage regulator, any thoughts on that, I could add one before the arduino, but that adds weight which Im trying to avoid if I dont need it.
Ive done the math and it looks like the single battery will be enough power the servos and arduino for the time period I need (like 10 mins), but one of the servos is pretty big and under load can take about 3A, would this sudden draw of power interupt the arduino if the servos were split off the positive lead before the board?
Thanks so much for your help!