Hello, I have read that it is necessary to use capacitors together with my servo motors to stabilize the current, but I don't know what their capacity should be, is there any way to calculate it? My sevomotors have a nominal voltage of 4.8V and use 50mA.
How are the servos being powered ?
From the Arduino 5V pin would be the wrong answer
From an external source, using a breadboard. With the same I power Arduino
Really, where did you read that? With a proper power supply for the servos, caps are not necessary. They may be necessary to prop up a marginal power supply.
And like @UKHeliBob said, do not expect the Arduino 5V to drive a servo. That might, temporarily, work for one unloaded micro servo, but that's it.
I don't know where you have read that but it is wrong in most cases. If you have a suitable power supply for the servos then no additional capacitors are normally needed.
Do you have any particular reason to think that YOUR servos need capacitors? Are they doing something wrong?
Steve
50mA? I doubt that.
Even a small SG-90 servo already has a stall current of ~650mA.
The supply must be able to deliver those short peaks.
Leo..
And the servo will pull the stall current, briefly, every time that it starts to move.
Budget 1A per servo for small servos, and this will increase for larger or more
powerful servos.
We are talking about hobby servos here, not servomotors, which are normally
something else entirely: https://en.wikipedia.org/wiki/Servomotor
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