I was playing at connecting wires to 'get the feel of it' when I accidentally connected the servo connector red wire to the arduino 5V pin while the arduino is connected to my comp, (and hence powered). I did not connect a battery to the ESC though.
Did I just effectively ran 5 V through my BEC and risk damaging it?
What I only managed to find online is I shouldn't have done that when the battery is connected because I will burn out my Arduino. But since I didnt have my battery connected to the ESC, will my BEC get damaged instead?
I couldn't check my ESC now because I don't have any suitable batteries with me right now and I have to wait till Monday to get my batteries. Just thought I can find a quicker answer here.
What happens when I connected my unpowered servo connector power wire to the powered arduino 5V pin?
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$\begingroup$ Should be fine. If I remember correctly, the inputs to the ESC (more or less) control power mosfets. Putting input to a mosfet without power should not hurt it. $\endgroup$ – combo Sep 18 '17 at 18:00
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$\begingroup$ @combo Great answer. Why not make it a real answer so we can up-vote it? $\endgroup$ – Ben♦ Sep 19 '17 at 15:46
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$\begingroup$ Sure, just felt a bit too brief to be considered a real answer. $\endgroup$ – combo Sep 19 '17 at 18:25
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Should be fine. If I remember correctly, the inputs to the ESC (more or less) control power mosfets. Putting input to a mosfet without power does not hurt it.
