question

andyalford avatar image
andyalford asked

VE.Direct not working on SmartSolar 150/70 MPPT

SmartSolar MPPT 150/70 Tr

This one is not communicating with GX on the VE.Direct.

Bluetooth is working, and the charger is operating as expected.

I checked in Bluetooth and cannot see an obvious option to turn VE.Direct on/off ????


VE.Directsmart mppt
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5 Answers
randallemarshall avatar image
randallemarshall answered ·

I checked in Bluetooth and cannot see an obvious option to turn VE.Direct on/off ????

Settings > tx port function > normal communication.

Have you checked the VE Direct cable, swapping it out for 1 of the others?

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andyalford avatar image
andyalford answered ·

Thanks for confirming that, yes I have


TX Port = Normal Communications and

RX Port = Remote On/Off


And have tried 2x VE.Direct Cables. Sadly Nothing.

2 comments
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Also check the sockets for bent or broken pins.
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Yup, the pins look perfect. And I have 3 others which are working perfectly.
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ejrossouw avatar image
ejrossouw answered ·

Which GX device? You have 4 controllers? Using an usb hub and VE.direct to usb dongles? On the first generation of Cerbo, the one usb port can only be used for powering the Touch GX due to hardware limitations.

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I have 4 controllers but I am only plugging in one at a time for this test.

The other 3 working, so I know this one is faulty.
I returned it under warranty. Thanks for your reply.


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Brent Massey avatar image
Brent Massey answered ·

I'm having the same issue @andyalford . Just started yesterday.

SmartSolar MPPT 100/30. Connected via VE.Direct cables to Cerbo GX. Bluetooth is working, and the charger is functioning as intended. But it is no longer recognized by the GX.

I have swapped cables with known good cables. All of the pins are strait, with no obvious damage.

But it still will not communicate with the GX device.



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I will let you know what the guys discover with my unit. It is back in their hands now, for testing under warranty.
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johanndo avatar image
johanndo answered ·

Original wires from Victron or DIY from YT tutorials?

Also Ve.Direct to Ve.Direct connection or via USB Port?


You may wreck your interface or your USB port if you connect the Vpp wires. I have seen really bad tutorials, hence the question.

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Victron VE.Direct USB cable only. Raspberry Pi and CCGX were used.

But I have sent the unit back under warranty now. Thanks for reply.


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Mine are all VE.direct to VE.direct cables from victron. Have been working flawlessly for months until yesterday.

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