Control Liftmaster LA400 Gate Opener via HA?

Great to hear you resolved your issues.

Is the ratgdo working as expected when the expansion board installed and open & close limits wired to ratgdo board?

I couldn’t tell, as I was stuck on that error right away. It did Open just fine and reported open, so it seemed to work well. But, of course then no closing. So I spent the next few hours hassling with that

At this point, I’m wondering if I have the right expansion board. It “worked” so I assume it was, but I don’t think it is. I bought Liftmaster K1D8080-1CC

But now finding that board on other websites, it says “The expansion board (K1D8080-1CC) is compatible only with pre-2016 Liftmaster operators with model # ending in ‘V’ or ‘VDC’.”

Well, mine is not! I got mine in 2019. I think I actually need K1D8387-1CC, which says “K1D8387-1CC is a UL325 Expansion Board. For use with various LiftMaster Commercial Swing and Slide Gate Operators; manufactured after 2016”

So thats $120~ down the toilet. If anyone on here needs a K1D8080-1CC, let me know! I will give it to you for the cost of shipping or whatever

I have the k1d8080-1cc with my la400 and it works fine.

Did yours come with a piece of paper telling you check the colors of you power wires on the board? There are 3 versions of the la400 and they changed the power wiring. My board is all green with green connectors.

You can see my power is red black black red in my pic. Some boards are red black red black.

Found a copy online

My power wires are correct, but if you have the green board, I bet its pre 2016 right? I have the Red/Pink board with was after 2016

Apparently, that means I need the K1D8387-1CC

I really don’t know how I didn’t catch that first time around, live and learn I guess!

board generations

https://www.gatecrafters.com/product_detail_31697_15241.aspx

if you have red board it requires photo eyes to ensure nothing is blocking. Not sure if when you add the add-on board you have to maybe move the photo eyes ? I have no idea.

I think you are right though and you need the board that is for 2016+.

I tried connecting my LA400 as described in @Chmynard 's diagram to no avail. The status reports unknown and the gate does not open/close. I do have 2 control arms, could that be the issue?






Is your ratgdo flashed to the dry contact mqtt firmware?

Yes. The ‘front gate’ is added as a device under the MQTT integration. In fact, when I unplug the RATDGO, the controls ‘grey out’ as they likely lose connection.

I do have two operators whereas all the diagrams show a single operator.

Nevermind. I got it, I had the configuration set in correctly. Works perfectly! This is amazing! Thank You @HamBandit and @Chmynard

1 Like

Well now you can help me LOL

When you open the gate, does it then show the open status? I was having an issue where it would go from opening to closed

Perhaps my connections were bad!

I had a similar symptom when I took mine off to re-install it for a youtube video. After re-seating the wire from the RATGDO inside the actuator wiring harness it worked. Maybe give that a shot!

Edit: Screenshot of Open -

Let me know if not allowed but I made a video on this. I call out this thread specifically so we might see some new folks looking for help. Maybe this will help the more visual people. I tried to add a section on the Relays / expansion board but without having one it’s not great…

Thanks, I actually watched and referenced the video. Thanks for making it

Maybe my gate opener being newer than some of yours means something is different, because I cannot get the “Open” status at all. It all works fine, but I never get an open status

I wired some stranded THWN into some wagos so I could easily reconnect things, no luck. Multimeter confirms continuity all the way through

The new add-on board is supposed to get here today, so fingers crossed that solves my problem.

I just installed the ratgdo 2.5 board with a LA400 gate opener and I have the exact same issue. The status never updates to ‘Opened’, it stays stuck at ‘Opening’. ‘Closing’ and ‘Closed’ work just fine.

1 Like

Well, I hate to say it, but I’m glad I’m not the only one!

When my add-on board arrives, I will report back

Same issue here as well, can’t get open to show as a status. Switches between opening and closing status when the gate is opening, but finally always shows closed whether open or closed.

Got the add-on board, working perfectly!

Now I just need to figure out how to get it into HomeKit as a gate, and not as a garage door. Should be easy enough. Here are some pictures. Copied @bigdvette and it just worked, no problems

Its not very neat, but we have a lot of storms in the area so I wanted to get it done quickly. Will come back on the weekend and make it neat and tiny and put the ratgdo in its 3D printed case

I’m curious to know.

Does anyone have a drive up sensor that opens the gate ?

I have one and I’ve noticed that when I drive up to my gate and open the gate, the sensor does not update the status in HA.

As much as I hate to buy another Chamberlain product, I guess I’ll get the add-on board just so I can be completely done with them. Thanks for figuring this out!