Before I ask my question, here are the references you may need for any of the components I am about to mention: - Servo Motor: Tower Pro Micro Servo 9g SG90 Datasheet: http://www.ee.ic.ac.uk/pcheung/teaching/DE1_EE/stores/sg90_datasheet.pdf - 6 AA Battery Holder: http://a.co/gnoSyRJ (Amazon link)
I am planning on building a robotic arm which will use 4-5 servos, with an operating voltage of 4.8-6V, but I don't want (and probably cannot) to power these directly from the 5V pin of the Arduino. I've heard how 9V batteries are bad, so I bought a 6 AA battery holder (linked above), and am going to connect it to one side of the breadboard (directly to the power rails). Now since 6 AA batteries are going to produce 9 Volts, I am unsure if just connecting the servos directly to these rails would be safe. Of the many Youtube videos I have seen for a robotic arm, most people just directly connect a 9V battery to the micro servos. But this doesn't make sense to me, since the operating voltage is 4.8-6V. So should I directly connect the servos or not? Or would I need a 5V regulator of some sort. (I don't have one, but I know where to find one).