bouni/max-cube-protocol

A attempt to write down the protocol of the eQ3 / ELV MAX! Cube

max-cube-protocol's Issues

Wallthermostat temp always 0

When I read the L message of my wallthermostat, the value for the temp is always 0. I decoded the results of my cube and they were different from the described values here. Attached you can find my results.

I figured out, that I need to use other bytes of the message when reading from the wallthermostat.
It is bytes 8 and index 12 for normal thermostats and 20 and 24 for wallthermostat (starting with 0).

Maybe someone can verify? My Cube is using firmware 1.1.3.

So for me, I used this code: (Testing for >128 because I only want the upper bit)

if (deviceType == EQ3MAX_DEV_TYPE_WALLTHERMOSTAT) { deviceStatus.temp = (payload[8]>=128 ? 25.5 : 0) + payload[12] / 10; } else { deviceStatus.temp = (payload[20]>=128 ? 25.5 : 0) + payload[24] / 10; }

decoded_254.txt
decoded_275.txt
decoded_280.txt
decoded_340.txt

How about reading actual temperature values at the rooms!?

Hi there,

Thanks a lot that hard work here, impressive reverse engineering.
I was wondering if there is a way to capture actual temperature readings from one of the devices (Room therm. or Wall therm.)? That can be great input for our own systems/projects. And then we can be sure that the temp value is reached to the expected degree at a room.

Thank you very much for any possible feedback in advance.

Hobbyist

S Message: Date Until month parsing wrong?

While testing against my cube I noticed that parsing the month of a date seems of. My cube responded to a holiday setting with this datetime payload response (as ints)

[29, 145, 3]

which was equivalent to 2017-Jan-29 1:30

This means, that the explanation is wrong by one bit for the month.

It might be just my cube and its age/firmware, but I figured it's worth asking.

R message

Looks like an R message permit the cube to reboot:

https://github.com/openhab/openhab2-addons/blob/43726b47c78a61040f09f2ef3f337d6742962153/addons/binding/org.openhab.binding.max/src/main/java/org/openhab/binding/max/internal/command/UdpCubeCommand.java#L81

disable the duty circle.

it is possible to disable the duty circle.
This is annoying especially during testing.
thanks in advance chris

MAX Cube loses all configuration

I use your component through Home Assistant (the Homegear component is based on your code).
As you can see from this discussion, with it the MAX Cube gets reset and loses all configuration
https://community.openhab.org/t/max-cube-looses-all-settings-with-openhab/8537/50

It seems that a solution is to reduce polling to 5 minutes and not less.

IS it possible to have this with your code?

Thanks

Setup failed for maxcube: Component failed to initialize.

My eQ-3 Max!|Cube works fine
but if I try to connect with my Home Assistant v. 0.80.3 with Hassio it give me the following error:

ERROR (MainThread) [homeassistant.setup] Setup failed for maxcube: Component failed to initialize.

I put in configuration.yaml

maxcube:
  gateways:
    - host: 192.168.1.222
      port: 62910

What's wrong?

L message doesn't look the same as described here

Hello,

I am using a Wemos D1 board to connect to the cube and try to read the messages sent. I cannot seem to request only the L message, so I tried to read the entire message sent by the cube on connect, because the L message is sent by default. But what I get doesn't look the same as described here. Please have a look below:

H:LEQ0128320,0ed2a3,0113,00000000,2987aef7,00,32,110b0c,0d2d,03,0000
M:00,01,VgIDAQdMaXZpbmcxEs+qAgdMaXZpbmcyEtGvAwdMaXZpbmczEsnZAwISz6pNRVExMjkwODAwFVJhZGlhdG9yIFRoZXJtb3N0YXQgMQECEsnZTUVRMTI5MjI4MxVSYWRpYXRvciBUaGVybW9zdGF0IDEDAhLRr01FUTEyOTAyODcVUmFkaWF0b3IgVGhlcm1vc3RhdCAxAgE=
C:0ed2a3,7Q7SowATAQBMRVEwMTI4MzIwAQsABEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAsABEAAAAAAAAAAQQAAAAAAAAAAAAAAAAAAAAAAAAAAAGh0dHA6Ly9tYXguZXEtMy5kZTo4MC9jdWJlADAvbG9va3VwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEVFVAAACgADAAAcIEVFU1QAAwACAAAqMA==
C:12c9d9,0hLJ2QIDEP9NRVExMjkyMjgzKyE9CQcYAzAM/wBESFUIRSBFIEUgRSBFIEUgRSBFIEUgRSBFIERIVQhFIEUgRSBFIEUgRSBFIEUgRSBFIEUgWSBZIFkgWSBZIFkgWSBFIEUgRSBFIEUgRSBZIFkgWSBZIFkgWSBZIEUgRSBFIEUgRSBFIFkgWSBZIFkgWSBZIFkgRSBFIEUgRSBFIEUgWSBZIFkgWSBZIFkgWSBFIEUgRSBFIEUgRSBZIFkgWSBZIFkgWSBZIEUgRSBFIEUgRSBFIA==
C:12cfaa,0hLPqgIBEABNRVExMjkwODAwKyE9CQcYAzAM/wBESFUIRSBFIEUgRSBFIEUgRSBFIEUgRSBFIERIVQhFIEUgRSBFIEUgRSBFIEUgRSBFIEUgRGBVFEUgRSBFIEUgRSBFIEUgRSBFIEUgRSBEYFUURSBFIEUgRSBFIEUgRSBFIEUgRSBFIERgVRRFIEUgRSBFIEUgRSBFIEUgRSBFIEUgRGBVFEUgRSBFIEUgRSBFIEUgRSBFIEUgRSBEYFUURSBFIEUgRSBFIEUgRSBFIEUgRSBFIA==
C:01bbcf,EQG7zwUAEg9KRVEwMzA4NDEy
C:12d1af,0hLRrwICEABNRVExMjkwMjg3KyE9CQcYAzAM/wBESFUIRSBFIEUgRSBFIEUgRSBFIEUgRSBFIERIVQhFIEUgRSBFIEUgRSBFIEUgRSBFIEUgRGBVFEUgRSBFIEUgRSBFIEUgRSBFIEUgRSBEYFUURSBFIEUgRSBFIEUgRSBFIEUgRSBFIERgVRRFIEUgRSBFIEUgRSBFIEUgRSBFIEUgRGBVFEUgRSBFIEUgRSBFIEUgRSBFIEUgRSBEYFUURSBFIEUgRSBFIEUgRSBFIEUgRSBFIA==
L:CxLJ2QkAAAAAAAAACxLPqgkAAAAAAAAABgG7zwkAAAsS0a8JAAAAAAAAAA==

This exact same L message is being sent each time I connect to the Cube.
Do you know what might be the issue?
Thank you in advance.

Kind regards,
Szilard Dezso

s command temperature and time of day

Hi!

I am writing a small application that implements some of the messages in order to read the configuration of the cube and devices and to set some of them. I am most interested in setting the weekly program.
While testing it I noticed that your description for the two fields, temperature and time of day, is not accurate.
"Unlike 'temperature & mode' it seams the value must be divided by 4 to get the actual temperature"
Actually the 7 MSB from the temperature field represents temperature in Celsius * 2 while the least significant bit together with the Time of day field multiplied by 5 describe the time of the day in minutes.

It is also explicable because 24h is codded with 288 > 256. A byte is not enough to reach the highest value, 9 bits are actually used.

Regards,
Costin

S_Command : How to set the trv to eco mode

Hey all,

How does one set the trv to "eco" mode? Im a little confused at the docs

thanks

C Message

Question ; Why does the temperature produced by the valves vary so much

Hey,

more of a question than anything else. When querying the valves we get a temperature reading too, but from my experience this value can be very out, from 0.0 to sometimes 5c more or less than the real value..

Why is this?? I know the max app only reports temperature if a room thermostat is used, but is this because the inbuild valve one isnt worth using??

Also I have a theory that the MaxCube only gets the temp updates every so often, maybe when there' is valve movement? is this correct?

thanks :-)

Angelo

Battery status of thermostats and windows contacts.

Hello,

is it possible to add battery status of thermostats and windows contacts?

Lock / Unlock the thermostat

Does anyone know a command to lock / unlock the thermostat? I dont want to press the two bottons at the thermostat.

Thanks.

Cube loosing its config

Hi all,

Ive been running homeassistant and some python code (piheating) and its been working fab, BUT Ive noticed recently that since running the code I regularly see the cube die and loose all its config.

Doing some R&D i think its because we're polling the CUBE too much and wondered if this is just hearsay or theres some evidence around this..

Anyone else seen it?

Possibility to set the room temperature programmatically

I'd like to read the current room temperature from an external sensor (not from the MAX!Wall-Thermostat)
and feed it to the heating thermostat. Does the max-cube-protocol provide a way to do that?

Thanks in advance for your help!

Link Partner

Could you explain me the meaning of "link partner"?
is it known the S command to build the structure? i mean, is it known how to create rooms and add devices to rooms?
or is it the m: command? is the m: command composed as the M: answer from the Cube?