I recently made a robotic arm project with 4 X MG996R Servo and 3 X MG90S Servo, i screwed in 2 wires to the positive and negative of the barrel jack (with a 3d printed bracket), can i plug in 5V 10A without damaging the board?
It will more than likely not work; the spec is that you need at least 7V on the barrel.
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If you connect 5V to the barrel jack it probably won't work because the barrel jack needs 7V to work.
If you want to draw enough current for a servo, or worse 4 servos, from the Arduino then that will cause problems as best, with possible damage at worst.
If you are asking if it's OK to use a power supply rated for 10A to power your Arduino then that's OK. This seems to be common misunderstanding with people new to electronics: the device takes the current it wants, as long as the power supply can meet that demand then that's OK. You plug a 5W table lamp into a mains socket capable of supplying 3kW (or whatever it is in your part of the world) and the lamp does not explode, it take the power it needs.
If none of that helps then please clarify your question.
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I have all of the servos on a mini breadboard. The servos are all connected by 2 wires which are attached to screws i screwed on the barrel jack with a 3d printed bracket. I was planning on powering the jack so the wires can draw the power directly and power all the servos
At a minimum, post a photo of this bracket arrangement, as words are inadequate. A schematic of your project would also help.
Breadboards are not designed for high current/power components like motors. You will probably melt the breadboard!
Route power directly from the PSU to the motors, using thick wires.
Stick to using the Arduino for control and keep any heavy stuff separate.
For more finished projects, use screw terminals, preferably with leaf wire protection.
For prototyping, a collection of Wago cage clamp blocks are useful. Easy to connect and release.
A lot of PCB tracks won't take heavy power and soon part company from the board, or worse.
Check this for wire size requirements.
https://www.powerstream.com/Wire_Size.htm
On the other hand: if you short-circuit a 2A supply, your board might survive. If you short-circuit a 10A supply you will incinerate the tracks...
- Always power your motors or inductive loads with an external power supply.
Most hobby servos work between 4.8-7.2V - Powering heavy loads with the Arduino can/will damage the Arduino.
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thank you guys for the help, if i want to connect 4 mg996r servos and 3 MG90S Servos, what should i connect to? i searched on google and i saw a potential option which was a Power Distribution Module.
Links to both your power supply, and this "power distribution module". Last post.
Have you addressed the problem that you cannot power the Uno with 5V at the barrel jack or that powering servos through a breadboard is at best undesirable ?
yea haha ive decided to power it separately