current sensor help...ACS712

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antlerhanger
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current sensor help...ACS712

Post by antlerhanger » Fri Apr 12, 2019 12:59 am

So I built a openxvario (works great) and wired a ACS712 current sensor to it . My question is do I just hook the +red into the ACS712 lugs from the 3s battery or do I use red and black..Seems to me only red because of ground loop ..Any help will be appreciated

THANKS
Allen

I'm using a x8r receiver with latest fw on 9xr pro


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kalle123
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Re: current sensor help...ACS712

Post by kalle123 » Fri Apr 12, 2019 6:15 am

Have a look here

https://www.helifreak.com/showthread.php?t=758263

He is using an ACS 758, but ACS 712 should be wired in the same way.

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jhsa
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Re: RE: current sensor help...ACS712

Post by jhsa » Fri Apr 12, 2019 6:35 am


antlerhanger wrote: My question is do I just hook the +red into the ACS712 lugs from the 3s battery or do I use red and black..Seems to me only red because of ground loop ..Any help will be appreciated
If.you.connect red and black to the sensor, you don't get a ground loop, you get a short citcuit and lots of smoke, and probably fire as well :) ;)

Just the positive passes through the current sensor.

João




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antlerhanger
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Re: current sensor help...ACS712

Post by antlerhanger » Fri Apr 12, 2019 2:34 pm

Thanks so much for your help . I actually built it last night the right way . I was just confused by some of the pics out there but then I realized what I needed to do . So no smoke yet ( Yet is the key word ) . Thanks again for your help

Allen

jhsa I still need to build the internal power switch for the rf modules .. have all the parts just need to solder up..I'm sure I will be picking ur brain

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jhsa
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Re: current sensor help...ACS712

Post by jhsa » Fri Apr 12, 2019 2:50 pm

No Prob.. Glad to help :)


João
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