Domoticz

alryaz wrote:Hello! I'm kinda new here, and I'm coming from a different background (Hass.io), and I bought a single phase one for myself just to play around and do some automatic submissions on the side.

I have a ESP8266 version, and I think I managed to break the protocol of this small thingy.

I'll set up a GitHub repository very soon, with an addon for HASS and a separate descriptive explanation of the API (I'm currently reverse-engineering their app, which appeared to be an embedded webview with almost readable JavaScript with all the fields available through the 10000 UDP port).

I might be in need of someone who has dual- or triple-phase DDS238-4. Please, PM me (or e-mail) if you're the one!

Gaudi wrote: ↑Tuesday 15 October 2019 13:29

alryaz wrote:Hello! I'm kinda new here, and I'm coming from a different background (Hass.io), and I bought a single phase one for myself just to play around and do some automatic submissions on the side.

I have a ESP8266 version, and I think I managed to break the protocol of this small thingy.

I'll set up a GitHub repository very soon, with an addon for HASS and a separate descriptive explanation of the API (I'm currently reverse-engineering their app, which appeared to be an embedded webview with almost readable JavaScript with all the fields available through the 10000 UDP port).

I might be in need of someone who has dual- or triple-phase DDS238-4. Please, PM me (or e-mail) if you're the one!

Thank you very much for your report.
Unfortunately I have the single phase meter, but can help you in doing some tests with my units if needed.

Regards

1. Cloud connection to devices
2. Better understanding of Hekr's send-receive datagram
3. Find more devices with different APIs

import asyncio
from time import sleep

from api import API
from device import Device
from helpers import load_protocol_definition

async def main():
    application_id = "<REDACTED>"
    power_meter_device = Device(
        device_id="<REDACTED>",
        control_key="<REDACTED>",
        address="<REDACTED>",
        device_protocol=load_protocol_definition('power_meter'),
        application_id=application_id
    )
    power_meter_device.authenticate()
    print(power_meter_device.command('queryDev'))
    # There's still some timeout happening at this stage. The following sleep ensures no problems occur.
    sleep(5)
    print(power_meter_device.command('queryData'))

if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

1. Force close "Wisen" application
2. Run packet sniffing on "Wisen" application
3. Open Wisen application
4. Swipe open the sidebar menu and open "Settings"
5. Select "LAN settings" option and flick the switch to "on" position
6. Go back and open your device !!!ENSURE IT LOADS PROPERLY FOR MAXIMUM COMPATIBILITY!!! (in some cases, however, loading won't occur; just check sniffer's output for anything on port 10000 for your meter's IP address; if there's data sent and received, you're good to go)
7. Open sniffer application and search for entries resembling "<meter's IP address>:10000" using UDP
8. There should be json-encoded datagrams which contain a "params" dictionary with "ctrlKey" ("control_key"), "appTid" ("application_id") and "devTid" ("device_id") keys. These are the ones you need. "address" is the IP address of your meter, obtaining it should be self-explanatory.
9. Fill those in, run the example above.

alryaz wrote:

Gaudi wrote: ↑Tuesday 15 October 2019 13:29

alryaz wrote:Hello! I'm kinda new here, and I'm coming from a different background (Hass.io), and I bought a single phase one for myself just to play around and do some automatic submissions on the side.

I have a ESP8266 version, and I think I managed to break the protocol of this small thingy.

I'll set up a GitHub repository very soon, with an addon for HASS and a separate descriptive explanation of the API (I'm currently reverse-engineering their app, which appeared to be an embedded webview with almost readable JavaScript with all the fields available through the 10000 UDP port).

I might be in need of someone who has dual- or triple-phase DDS238-4. Please, PM me (or e-mail) if you're the one!

Thank you very much for your report.
Unfortunately I have the single phase meter, but can help you in doing some tests with my units if needed.

Regards

So, as I promised, here comes the GitHub repository: https://github.com/alryaz/python-hekr
The initial commit is as barebones as it gets, however it does seem to work with local devices.
My primary goals now will be to establish the following:

1. Cloud connection to devices
2. Better understanding of Hekr's send-receive datagram
3. Find more devices with different APIs

I currently test with the following code (async is not necessary, however I will aim to make the library async-compatible):

Code: Select all

import asyncio
from time import sleep

from api import API
from device import Device
from helpers import load_protocol_definition

async def main():
    application_id = "<REDACTED>"
    power_meter_device = Device(
        device_id="<REDACTED>",
        control_key="<REDACTED>",
        address="<REDACTED>",
        device_protocol=load_protocol_definition('power_meter'),
        application_id=application_id
    )
    power_meter_device.authenticate()
    print(power_meter_device.command('queryDev'))
    # There's still some timeout happening at this stage. The following sleep ensures no problems occur.
    sleep(5)
    print(power_meter_device.command('queryData'))

if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

There are number of attributes that have to be retrieved before running this code (the "<REDACTED>" ones).
These can be obtained via (for instance) installing a packet sniffer application such as HttpCanary Free Trial.
Once it's installed:

1. Force close "Wisen" application
2. Run packet sniffing on "Wisen" application
3. Open Wisen application
4. Swipe open the sidebar menu and open "Settings"
5. Select "LAN settings" option and flick the switch to "on" position
6. Go back and open your device !!!ENSURE IT LOADS PROPERLY FOR MAXIMUM COMPATIBILITY!!! (in some cases, however, loading won't occur; just check sniffer's output for anything on port 10000 for your meter's IP address; if there's data sent and received, you're good to go)
7. Open sniffer application and search for entries resembling "<meter's IP address>:10000" using UDP
8. There should be json-encoded datagrams which contain a "params" dictionary with "ctrlKey" ("control_key"), "appTid" ("application_id") and "devTid" ("device_id") keys. These are the ones you need. "address" is the IP address of your meter, obtaining it should be self-explanatory.
9. Fill those in, run the example above.

Current protocol definitions are incomplete (some specific features are currently missing, such as firmware version checking, connectivity status, diagnostics, etc.), and socket connectivity is far from being robust (I might need assistance with that as I'm not really familiar with python's sockets at this stage). However, I made myself an auto-generator based on archives available on Hekr's hosting which extracts fields necessary for DDS238-4W operation and puts them as "power_meter.json" file in the "protocols folder". I took the liberty of converting some of the fields' names into more human-readable format (such as "total_energy_consumption"). Original field defiitions are also provided, albeit in a formatted variation.

Gaudi wrote:Thnk you for the information.
I am following the steps listed in your post, but am unable to capture the packets to extract the information.
Upon opening Wisen, I get an Unknown Error. I can go ahead and enable LAN, and see the meter information, but returning to HTTPCanary app there are no entries with local IP.
Is there any other way to grab such packets?

Regards

ittchmh wrote:Just received my meter with WiFi
Not tested/opened yet.
I will try to use COM sniffer - https://www.compuphase.com/electronics/rs232split.htm
Then custom firmware could be build to integrate this meter with other smart home software
I use HASS, not Domoticz.

Also I will try to use WireShark to capture traffic
I'm using Mikrotik AP, so traffic capture not an issue.

Also if internal ESP8266 communicates via RS485 this https://community.openhab.org/t/dds238- ... face/81463 would be good starting point for custom firmware

• custom ESP8266 module

• ESP8266 communicates via COM

ittchmh wrote: ↑Monday 18 November 2019 12:42 Just opened my meter
As I understand they use:

• custom ESP8266 module

• ESP8266 communicates via COM

I will try to sniff COM data

WiFi can be replaced with ESP8266-01 for custom firmware tests

Gaudi wrote: ↑Monday 02 December 2019 14:30
Hi, any updates on updating the firmware/making it work with Domoticz?

Thank you!

rodgon81 wrote:Hello, for all those who have this meter. I share some libraries that I develop through reverse engineering to this module.

With these libraries you can fully control the module. To program the module unfortunately it is necessary to disassemble it and flash the esp8266 inside.

For now, i share with you the librarys for those who have knowledge programming and some electronics, maybe you can make a plugin in ESPeasy or Tasmota or other.

I currently have a full firmware that connects with home assistant in my case, through MQTT, that saves history through nodered in an influexdb database with grafana. But that, still works well, but has work to do.

My English is not good, so use Google translator.

https://github.com/rodgon81/SmartMeter238
https://github.com/rodgon81/JSmartMeter238

I hope these libraries serve someone as they have served me.

Gaudi wrote: ↑Wednesday 04 March 2020 1:56

rodgon81 wrote:Hello, for all those who have this meter. I share some libraries that I develop through reverse engineering to this module.

With these libraries you can fully control the module. To program the module unfortunately it is necessary to disassemble it and flash the esp8266 inside.

For now, i share with you the librarys for those who have knowledge programming and some electronics, maybe you can make a plugin in ESPeasy or Tasmota or other.

I currently have a full firmware that connects with home assistant in my case, through MQTT, that saves history through nodered in an influexdb database with grafana. But that, still works well, but has work to do.

My English is not good, so use Google translator.

https://github.com/rodgon81/SmartMeter238
https://github.com/rodgon81/JSmartMeter238

I hope these libraries serve someone as they have served me.

Hi Rodrigo, great work.
!
I do speak Spanish and am willing to test your code and collaborate.
Please feel free to contact me so we can further discuss and post findings here.

Regards