Hello im new in the forum and as the title says my goal is to make a shield that allows me to control multiple servos at least 5. So im using a arduino UNO and as far as i know i only need a power supply that can support enough energy for the servos and then put ground of the arduino and the power suply together, so im planing to use an AC DC adapter output: 5VDC - 5A. so do i need something else for this shield or am i missing something specially for the power supply becouse im struggling with this electronic things. (Sorry if i made some english mistakes).
Arduino, power supply and all servo grounds must be commoned. And of the course the servo signal wires will need to be connected to digital pins.
Whether 5V 5A will be enough for the power supply will depend on exactly what servos you use and how many of them. With no idea of what sort of project you're talking about no-one can be more definite. I know of servos that need more power than that for a single servo but they're not very common.
Steve
I built an Atmega 328 on stripboard to control 3 small servos (which will never have a heavy load) and I had assumed that a 7805 voltage regulator would be sufficient for both the Atmega 328 and the servos.
It worked fine with my servos but when the friend I made it for tried his servo it would not work. I eventually discovered that his digital servo was drawing more power (probably just for an instant at startup) so I added a second 7805 so that the servos can't interfere with the Atmega 328. Now it works fine with 3 digital servos all working at the same time.
...R
Thank you Steve and Robin for your answers so this servos im not quite sure were to find their datasheet, becouse they are borrowed, and they are called U-Servos, so when i google this servos it seems these are from a company that makes robotic arms know as UFactory. but funny fact it appears they have a shield specifically for this servos and this shield works with 5V-5A (lol) so i hope it doesn't appear any problem.