Thread Tools
Jul 16, 2019, 07:35 PM
Registered User
Thread OP

G-RX8 with FrSky Battery Voltage Sensor (FBVS-01)

How do I setup the FrSky Battery Voltage Sensor (FBVS-01) with the G-RX8 receiver in Opentx?

I've used the multi-cell sensor just fine but can't seem to get this one going. I did find a Youtube video that said to only use the red wire to keep from having a ground loop on a different receiver. Is that good advice.?
Sign up now
to remove ads between posts
Jul 16, 2019, 09:12 PM
Sagitta Fanboy
The FBVS-01 isn't a sensor per se, it's a voltage divider. So it works differently from a real S.Port sensor.

It needs to be plugged into the Ain port on the G-RX8's S.Port header, you shouldn't need a ground wire unless you have a fully isolated BEC/ESC (which is unlikely)
Jul 17, 2019, 01:33 PM
Alt+24=↑ Alt+25=↓ Use num keys
Miami Mike's Avatar
Originally Posted by mawz
... you shouldn't need a ground wire unless you have a fully isolated BEC/ESC (which is unlikely)
And if it doesn't work with just the red wire connected because you have a fully isolated BEC/ESC (which is unlikely) then you'll need to figure out why it's set up that way, but don't just add a ground wire because if you do that then you'll no longer have a fully isolated BEC/ESC.
Dec 11, 2019, 03:01 PM
Registered User
Thread OP
Thanks so much for the reply. I read it a shortly after you posted, but forgot to thank you.
Dec 22, 2019, 09:33 PM
Sailplane Mafia
gquiring's Avatar
I made a video on the G-RX8 receiver for setup. If you skip to 7:09 it will help explain the voltage sensor hookup.

FRSky G-RX8 receiver bind setup howto (11 min 25 sec)
Dec 22, 2019, 10:38 PM
Registered User
Thread OP

Thank You

Thank you for the useful information. I'll try that hookup as soon as the holidays slow down.

Merry Christmas and Happy New Year!

Quick Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion D4r-ii + vario. Can I add FBVS-01 voltage sensor too? ratbird911 FrSky 1 Apr 25, 2017 05:12 PM
Discussion Frsky FBVS-01 Voltage Sensor for beginner sooner2k1 Multirotor Drone Electronics 2 Mar 03, 2015 07:06 PM
Discussion FRSKY FBVS-01 voltage question Charlie6017 Multirotor Drone Electronics 6 Nov 24, 2014 11:35 AM
Question Will this "FrSky Lipo Voltage Sensor FLVS-01" work with the TARANIS CyberCrash Radios 3 Nov 01, 2014 05:02 PM
Discussion FBVS-01 Frsky Sensor Help Charlie6017 Multirotor Drone Electronics 0 Apr 26, 2013 08:28 PM