Zaptec app for Homey?

The issue is solved (should be) in the authentication on the charger or delayed charging in the functionality of the car. As a work around, you can stop the charging immediatly when the car is plugged in and charging. Then resume it (start) on your desired time.

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You can set the power limit to 0 and use flows or virtual devices to increase the power limit at a specific time to start charging your car. My electricity grid provider offers different electricity tariffs depending on the time. I have used flows to set the power limit to 0 for high tariffs and only start charging at the low tariff - fully automatically. I have also built a virtual device so that I can raise the power limit at the touch of a button if I do want to charge at a high tariff. Does this idea help?

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@pwad , is it possible to add the temperature and humidity in the app?

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Kind regards
Marius

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Hi @rh_rh . To me it is unclear whether I can set the max charging current per phase independently on a Zaptec Go? Or is this only possible with a Pro? I don’t own a Zaptec yet so unfortunately I can’t test it myself.

I have a Zaptec go wallbox in use. I can change the amperage with Homey with Flows. However, unlike the Zaptec Pro, the Zaptec go cannot switch between 3-phase and 1-phase charging. This means that the minimum charge must be 3x 6A. I have heard that Zaptec is considering integrating the switch to 1-phase charging in a new generation, but my generation cannot yet do this.

If you want to use this function for PV surplus charging, I would recommend that you choose a wallbox that already supports this function natively. Zaptec does not offer its own function for this.

Thanks @rh_rh. The answer is still not 100% clear however. The main question is about this Then-card:
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How does it work on a Zaptec Go (as stated in the card)? I understand that all values must be >6A. Can I set 3 different values for Current P1/P2/P3? And will the Zaptec Go then actually respect that?

So if I call the card with 6/8/10 and will it then actually charge 6A on P1, 8A on P2 and 10A on P3?

Oh, sorry for this misunderstanding…

I checked this. No, this does not work with my Zaptec go. It only reacts If I change the value for all 3 phases. My recommendation is, to ask Zaptec directly, if this “new generation” of Zaptec go is released. I’m pretty sure, they said, that this is possible with this new generation.

Are you charging with 3-fase? Then it should work. If you are charging with 1-fase, then it can not, and will not ever work.

What is this new release? Nothing to be found on the Zaptec homepage.

I received this information from Zaptec Switzerland when I exchanged information with them as part of the Homey app development preparation. I don’t know whether they will actually implement this new Zaptec go. The intention was, that the Zaptec Go would also have a different relay, similar to the Zaptec Pro.

@Marius_Stensrod @rh_rh Thank you for the answers. Your answers seem contradictory however. I don’t have a Zaptec yet. And I will connect on 3 phases. I’m planning to get the GO model (not the Pro). I just want to be sure that setting the charger to charge on different ampères on each of the 3 phases is possible. Did you both actually test it on a GO model? I hope you can clarify this a bit further.

You can connect the Zaptec Go as in 3-phase or 1-phase connection, the distribution system is alså a key-factor, it it is IT, TN(-C-S) or TT. As a example, i have ha Zaptec Go charger, connected 3 phase on IT. But i fo not own a car that support 3 phase charging on IT, so it charges on 1-phase. When chargin on 1-phase you have to change the charging current in all of the phases to the same value. If i haf a car that supported 3-phase charging, ofcourse it will accept the different current setting in a certain degree, it also depends on the car.

I am new in the world of Homey. I have a Zaptec home charger and I am looking for a solution to charge my car when there is a surplus of power available from my solar panels. I also have a Growatt inverter and a Homewizard P1 meter. Does anybody know if that is possible with Homey?

Welcome to Homey!

It looks like there is a Homey App for your smartmeter. Together with the Zaptec app and the Chronograph app (timer…) you should have everything you need to build suitable flows.

There are various implementation options. Here are the basics how I solved it. Maybe there is a better documented idea somewhere else in the forum…

I have created a Boolean variable (true/false) that enables charging with PV power. If there is a certain surplus on my smart meter, I start a timer for 10 minutes. If the surplus is not exceeded, the variable is set to “yes” after 10 minutes. If the surplus is not reached, the timer is stopped and the whole process starts again. I made good experiences with this so that the charging process does not constantly start and stop on cloudy days.
Once the charging process has started (triggered by the variable), I again have a timer that runs as soon as I purchase additional electricity. Here, too, I stop the timer as soon as I have enough PV power again. This prevents charging stopps for each mini cloud. Otherwise my variable will be set to false and the charging stopps (and the whole procedure starts on step 1).

In another flow, I control the amperes used for charging, the greater the PV surplus, the greater the charging power. Here, however, I only make corrections every 10 minutes, as I don’t want to change the charging power too often. This is apparently not good for the Zaptec relay.

Hope this gives you a first idea? Once you have built the base, you can then expand it.

Is there a plan, or possibility, to add some data of the Sense module and/or Xemex P1MB-module?
I have this combination of modules installed for load balancing. And they use my one and only P1-port and since installation of my zaptec then I can’t use my old P1-reader by Homewizard anymore.

If my Zaptec configuration can share data on my energy of my homeuse it would be great. I don’t want to buy an active p1 splitter if the data is already available via the Sense or Xemex.

Hi Bastiaan,

My main issue is that I don’t have any Sense module to develop against. So I can only develop by “guessing” and get someone to verify it. However, I’m currently quite short on time.

Something that would speed things up would be if you dared to share your credentials with me so that I can test out the API with an account with a Sense connected. Or if you feel technical, you can send me a dump of the response from this API endpoint. You’d need to authenticate first at the top right.

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@pwad , any interest of implementing this? If the answear is “NO”, i accept it of course. The reason of the question is that Zaptec do have a aggressive temperature algorithm, so it would be very interesting and useful to se the internal temperatur/charging current in “homey insight”.

Kind Regards
Marius

Thanks @pwad
I’m not a fan of sharing my credentials.

I’ll ask a technical friend with this, to share a dump.

Hi,

The temperature sensors you listed there are for the pro/home charger. I added Internal sensor 6 for those and picked sensor 5 (only available) for Go charger. Also humidity for both. They’re in the beta release for the app. Zaptec | Homey

Do test it out. Again, I have no charger of my own currently so I’ve only implemented it purely on reading the API documentation.

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Thanks! Works like a charm, except a factor issue. It reads 3.01 degrees in the Homey app, when it should be 30.14 degrees. The humidity is working as it should. ZaptecGo.