Can I take 5v off the servo input for LED volt meter

General topics and discussions about the VESC and its development.
rogerd
Posts: 17
Joined: 21 Dec 2015, 15:46

Can I take 5v off the servo input for LED volt meter

Postby rogerd » 24 Dec 2015, 10:37

I want to add a simple LED volt meter for my battery pack. I assume I can take 5v (to power the LED) from the same pin that is on the servo connector powering my receiver?

joe90
Posts: 49
Joined: 15 Dec 2015, 16:52

Re: Can I take 5v off the servo input for LED volt meter

Postby joe90 » 25 Dec 2015, 13:33

I think so
I used this 5v to power a cooling fan
5v output is rated at 1.5A
as long as your load is below that it should be ok
Michel Cote
Twin v4.7 + SK3 6374 149KV
Bicycle
2500W peak/unit on 12S

hexakopter
Posts: 86
Joined: 24 Dec 2015, 15:24
Location: Germany

Re: Can I take 5v off the servo input for LED volt meter

Postby hexakopter » 26 Dec 2015, 09:43

One shouldn't forget that the integrated switching mode buck converter isn't there just for external load, the top priority is to power VESC parts like the STM32. So I wouldn't put a external load of 1.5A on it. I think with 1A load you have enough "safety current" and 1A isn't that little.
That are just my own thoughts what I would stress my VESC when I have one. :)

rogerd
Posts: 17
Joined: 21 Dec 2015, 15:46

Re: Can I take 5v off the servo input for LED volt meter

Postby rogerd » 27 Dec 2015, 16:23

Hey Joe - what fan did you use - just some generic 5v pc fan? I'm looking at active cooling for mine...


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