Local cloud service for sureflap connect pet/cat door and feeder

I’m looking to reverse engineer the sureflap cloud backend.
So far I have built a docker compose that spins up a web server to simulate the hub api calls and a mqtt server backend to simulate the aws iot endpoint.
I’ve decoded them majority of messages and writing code to push to home assistant as sensors.
Currently the repo is private but plan to release it public once the code is in a better state.
Anyone else interested in helping with building the component which I suggest we call “surepetlocal” or something similar.


Great idea!

I don’t have many skills in this area but will help out with testing and data.

I have 3 flaps, 2 feeders and three hubs.

100% love this idea
I have 1 catflap and 3 feeders, let me know if anything i can do to help at all

Seems like a great idea!

I have 1 cat flap, and 4 feeders, and would be happy to test / help in anyway I can!

Me to i have 1hub and 1 feeder tks for the idea
Please hurry

Happy to help with testing.
Hub + 2 feeders and 2 cats here !

Does anyone have a H004 serial number hub? There seem to be 10 revisions from H001 to H010. If so I wouldn’t mind if you could PM me your serial number and the mac address of the hub.

Nope, sorry … mine is H008!

So it appears it might be easier to reverse the air protocol and build a custom gateway. Anyone else with a CC2531 that ideally has the external antenna as then you should be able to pick up the Miwi traffic from the hub and the door / feeder and interested in running a docker image to sniff traffic.


I have a working system that runs on a Pi and communicates with my SurePet Feeder. It publishes the readings to MQTT.

The Repo is:


@peterl Happy to help testing. I have a H009 Hub

If you still need information for a H004 hub, I have this revision.


Do you still need someone to help with a pet door? I see the above github repo only works with the feeders currently. Would love to move my door over to mqtt locally. Cloud is more down than up for me for some reason.

I have a feeder and pet door. So am working on both. Need to confirm everything is the same with the cat flap. But so far it looks to all use the same messages.
The hardware required will probably end up being something very similar to this project. With just a esp32 or 8266 and the MRF24J40. https://doc.riot-os.org/group__boards__esp32__mh-et-live-minikit.html

1 Like

I like the idea of the ESP with MRF24J40 more than a Pi3. Really excited.

I do like the MH-ET LIVE MiniKit setup, but can’t find it anywhere. Looks like we either email that email address on that site or look at the easier obtainable arduinos.

Is this the easiest (not cheapest though) combination that will work?

wifi-ble-click (esp32-wroom-32) + bee-click (MRF24J40MA)

Or should I look at this esp with this socket board on to which I then put the MRF24J40 which seems to be very easily accessible.

I have just published my first initial cut of the Wemos ESP32 Arduino code with the MRF24J40 radio controller.

My focus is similar to Mark having a local hub as the constraints of re-using the existing hub were such that I couldn’t easily use it.

Currently the code segfaults every few minutes due to an issue with the interrupt handler which I think should be fairly easy to solve and plan to do that over the next few days. I also have python code I am working on to take all the messages off the MQTT topic that the Wemos Hub puts on and converts them into Home Assistant messages. The code is incredibly rough but will commit it when I am feeling happier with it.

I have also fabricated the PCBs for the MRF24J40 to plug into the Wemos and have included the gerber file from Gunar Schorcht which I found here: https://doc.riot-os.org/group__boards__esp32__mh-et-live-minikit.html

Questions and feedback or idea

1 Like

Do you think in future a CPL and BOM can be included to make it easier to let jlcpcb do the SMT assembly? Just asking for others, for now I will print and diy.

Unfortunately JLCPCB doesn’t support the MRF24J40MA so you can’t have them do it for you. But the MA is a single PCB that solders directly only the fabricated PCB so it is a super simple job to solder on. I have sourced the MAs from rsonline or Ali and they are a standard component which is slightly on the more expensive side for Zigbee radios.

However if you don’t mind opening your hub or perhaps you bricked it there is one inside there too. :wink:

Added further documentation to the feeder message decode the feeder messages:

And the issue I have around the calculation of the CRC value of the frame and if it is an xored value or not, plus there are two digits I am not sure about for the xor key that I would like to figure out.