Add support for the FastCon technology #669

felipediel · 2022-03-19T22:57:22Z

Proposed change

Add support for the FastCon technology. SP4 devices can now communicate with sub-devices.

Credits

@stevendodd helped us integrate the S3 hub recently. It's the same protocol.

Type of change

Dependency upgrade
Bugfix (non-breaking change which fixes an issue)
New device
New product id (the device is already supported with a different id)
New feature (which adds functionality to an existing device)
Breaking change (fix/feature causing existing functionality to break)
Code quality improvements to existing code or addition of tests
Documentation

Additional information

This PR fixes issue: fixes Add support for FastCon meshed devices #645
This PR is related to:
Link to documentation pull request:

Checklist

The code change is tested and works locally.
The code has been formatted using Black.
The code follows the Zen of Python.
I am creating the Pull Request against the correct branch.
Documentation added/updated.

felipediel · 2022-03-19T23:04:24Z

How to test

Build the environment

Linux

python3 -m venv venv
source venv/bin/activate
pip3 install git+https://github.com/felipediel/python-broadlink.git@fastcon

WIndows

python3 -m venv venv
source venv/Scripts/activate
pip3 install git+https://github.com/felipediel/python-broadlink.git@fastcon

Run the code

python3

The Python Interpreter is open. Let's write some code and check the response.

>>> import broadlink as blk
>>> device = blk.hello("192.168.0.16")  # Example IP address
>>> device.auth()
>>> subdevices = device.get_subdevices()
>>> did = subdevices[0].get("did")
>>> device.get_state(did)
>>> device.set_state(did, pwr=1)
>>> device.set_state(did, pwr=0)

OMVMMG · 2022-03-22T12:48:12Z

Hi @felipediel ,
when running: did = subdevices[0].get("did")
I get an error
Traceback (most recent call last):
File "", line 1, in
IndexError: list index out of range

felipediel · 2022-03-22T15:08:40Z

Thank you! I forgot to mention, you need to have a sub-device connected to the device to test.

OMVMMG · 2022-03-23T10:45:28Z

I have 2 devices and one of them must be connecting as a sub-device as it doesn't respond to ping but I can control it thorugh Home Assistant and the Broadlink app, which woulod indicate it's part of the FastCon mesh. However, in the Broadlink app it doesn't specifically appear as a sub-device.

stevendodd · 2022-03-23T12:12:29Z

@OMVMMG what type of sub devices do you have?

If you would like to test with:
https://hub.docker.com/r/stevendodd/s3-rest-api or https://github.com/stevendodd/python-broadlink/tree/Add_S3_REST_API perhaps we can get more information

Instructions here: https://community.home-assistant.io/t/broadlink-s3-hub-support/319832/18?u=stevendodd

Noticed you are potentially using an SP4 device .. I'm not sure how that works but you might just be able to add the device ID into the Python library under an S3 hub for testing

felipediel · 2022-03-23T14:33:57Z

I have 2 devices and one of them must be connecting as a sub-device as it doesn't respond to ping but I can control it thorugh Home Assistant and the Broadlink app, which woulod indicate it's part of the FastCon mesh. However, in the Broadlink app it doesn't specifically appear as a sub-device.

If you can control it with Home Assistant, it's not a subdevice, we don't support this feature yet.

OMVMMG · 2022-03-24T11:04:07Z

If you can control it with Home Assistant, it's not a subdevice, we don't support this feature yet.

I can control one of them, as soon as I integrate the second device I lose control of the other.

stevendodd · 2022-03-24T11:33:50Z

Are you using the process I described to create a Docker image?

ovionlogis · 2022-03-24T17:56:36Z

@felipediel hi
I have four devices SP4L-EU, one main and three others are connected through it.
I was unable to get a list of subdevices, I am attaching the logs that I could get

state = {"count": step, "index": index}
print(state) # {'count': 5, 'index': 0}
packet = self._encode(14, state)
print(packet) # bytearray(b'!\x00\xa5\xa5ZZ\xa1\xc7\x0e\x0b\x15\x00\x00\x00{"count":5,"index":0}')
resp = self.send_packet(0x6A, packet)
print(resp) # b'Z\xa5\xaaUZ\xa5\xaaU\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>\xe9\x00\x00\x8ba\xee\x03m\x94e8\x00\xb0C\xa0\x01\x00\x00\x00\x96\xcf\x00\x00\xfe\x10X\x995\xd2\xbcp\xe7\xe9\x8b\x1b\xc2\x95F\xd9\xec3\x07\x11\xe5\xf2\xc2\x93\x7fn \x02(\xb1\x1d@AM\x8c\xe7\xbf\x82\xf5h\x85heZ\xaa\xdd\x9b\x92^\x9dB5\xb7\xaf\x18\xddu\xa6\xb7Ez\x843E'
e.check_error(resp[0x22:0x24])
resp = self._decode(resp)
print(resp) # {'status': 0, 'total': 0, 'index': 0, 'list': []}

Is there anything else I can help?

felipediel · 2022-03-25T19:28:28Z

Thank you! Maybe the communication is a bit different. I will do some research.

If anyone can make it work, please let me know.

felipediel · 2022-04-05T22:22:56Z

We are making progress here: home-assistant/core/pull/69338. Everyone with subdevices is welcome to help capture and decode this packet:

import socket

def discover(ip_addr):
    conn = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    conn.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    conn.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    conn.settimeout(10)
    packet = bytearray(0x30)
    packet[0x26] = 6
    checksum = sum(packet, 0xBEAF) & 0xFFFF
    packet[0x20:0x22] = checksum.to_bytes(2, "little")
    conn.sendto(packet, (ip_addr, 80))
    resp = conn.recvfrom(1024)
    conn.close()
    return resp

resp = discover("192.168.0.16")  # Example device IP address
print(resp)

unknown_bytes = resp[0x80:]
print(unknown_bytes)

So the mission is to capture and understand the unknown bytes. This part of the packet contains the MAC address and product id (2 bytes) of the subdevices.

stevendodd · 2022-04-06T18:11:52Z

@felipediel are you wanting someone to try and connect directly to a sub device? I don't think that's possible; I have to talk via the hub. The hub then sends UDP traffic to each sub device via a broadcast message.

felipediel · 2022-04-06T18:25:36Z

No, it's via hub, the devices can work as hubs too. They have subdevices that can be discovered with the function above.

stevendodd · 2022-04-06T18:44:34Z

192.168.1.99 = S3 Hub

Stevens-MacBook-Pro:python-broadlink steve$ python3 test.py (b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\xc6\x00\x00\x00\x00\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00D\x12e|M\xa6c\x01\xa8\xc0o\x029\xae\x0b\xec42573\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', ('192.168.1.99', 80)) ()

TanTrungNguyen · 2023-04-10T18:41:28Z

Would it help if we specify the DID (device unique identifier) in the integration? We can get the DID from Device Info from the Broadlink App.

Add support for the FastCon technology

ab4311e

felipediel mentioned this pull request Mar 20, 2022

Broadlink SP4M-US Integration home-assistant/core#63853

Closed

felipediel added feature breaking-change labels Mar 21, 2022

MichielioZ mentioned this pull request Sep 10, 2022

API can't communicate with device (smart light bulb) but app can (both in the same local network) #690

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Add support for the FastCon technology #669

Add support for the FastCon technology #669

felipediel commented Mar 19, 2022 •

edited

felipediel commented Mar 19, 2022 •

edited

OMVMMG commented Mar 22, 2022

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OMVMMG commented Mar 23, 2022

stevendodd commented Mar 23, 2022 •

edited

felipediel commented Mar 23, 2022

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ovionlogis commented Mar 24, 2022

felipediel commented Mar 25, 2022

felipediel commented Apr 5, 2022

stevendodd commented Apr 6, 2022

felipediel commented Apr 6, 2022

stevendodd commented Apr 6, 2022 •

edited

TanTrungNguyen commented Apr 10, 2023

Add support for the FastCon technology #669

Are you sure you want to change the base?

Add support for the FastCon technology #669

Conversation

felipediel commented Mar 19, 2022 • edited

Proposed change

Credits

Type of change

Additional information

Checklist

felipediel commented Mar 19, 2022 • edited

How to test

Build the environment

Linux

WIndows

Run the code

OMVMMG commented Mar 22, 2022

felipediel commented Mar 22, 2022

OMVMMG commented Mar 23, 2022

stevendodd commented Mar 23, 2022 • edited

felipediel commented Mar 23, 2022

OMVMMG commented Mar 24, 2022

stevendodd commented Mar 24, 2022

ovionlogis commented Mar 24, 2022

felipediel commented Mar 25, 2022

felipediel commented Apr 5, 2022

stevendodd commented Apr 6, 2022

felipediel commented Apr 6, 2022

stevendodd commented Apr 6, 2022 • edited

TanTrungNguyen commented Apr 10, 2023

felipediel commented Mar 19, 2022 •

edited

felipediel commented Mar 19, 2022 •

edited

stevendodd commented Mar 23, 2022 •

edited

stevendodd commented Apr 6, 2022 •

edited