Support for Xiaomi Air Quality Monitor 2gen #419

herolee · 2018-11-22T04:39:02Z

$ mirobo discover
INFO:miio.discovery:Discovering devices with mDNS, press any key to quit...
WARNING:miio.discovery:Found unsupported device cgllc-airmonitor-b1_miio57435516._miio._udp.local. at 192.168.0.79, please report to developers

$ mirobo --ip 192.168.0.79 --token xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx info
cgllc.airmonitor.b1 v3.4.4_0077 (34:CE:00:8A:71:CC) @ 192.168.0.79 - token: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

syssi · 2018-11-22T05:31:00Z

Could you provide the output of:

miiocli airqualitymonitor --ip IP --token TOKEN status

…oses: rytilahti#419)

herolee · 2018-11-22T07:00:44Z

The connection is unstable：

ERROR:miio.device:Got error when receiving: timed out
Error: No response from the device

I'll try again later.

syssi · 2018-11-22T08:07:54Z

May be your device isn't compatible to the 1gen device. I will provide another command ASAP to retrieve selected properties only.

herolee · 2018-11-22T08:14:20Z

OK

The product link:
https://item.mi.com/1184500007.html

syssi · 2018-11-22T08:21:51Z

# try to retrieve multiple properties with one request
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['power', 'aqi', 'battery']"

# request one property per request
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['power']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['aqi']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['battery']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['usb_state']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['time_state']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['night_state']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['night_beg_time']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['night_end_time']"
miiocli airqualitymonitor --ip IP --token TOKEN raw_command get_prop "['sensor_state']"

herolee · 2018-11-22T08:35:17Z

Tried many times,get these results:

Running command raw_command
ERROR:miio.device:Got error when receiving: timed out
Error: No response from the device
OR:
ERROR:miio.device:Unable to discover a device at address 192.168.0.79
Error: Unable to discover the device 192.168.0.79

Maybe because of the monitor using UDP protocol?

syssi · 2018-11-22T08:59:52Z

This happens usually if the TOKEN isn't correct.

syssi · 2018-11-22T09:00:15Z

Does the info call this work?

herolee · 2018-11-22T09:09:14Z

$ mirobo --ip 192.168.0.79 --token xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx info
cgllc.airmonitor.b1 v3.4.4_0077 (34:CE:00:8A:71:CC) @ 192.168.0.79 - token: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

$ miiocli airqualitymonitor --ip 192.168.0.79 --token xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx info
Model: cgllc.airmonitor.b1
Hardware version: Linux
Firmware version: 3.4.4_0077
Network: {'mask': '255.255.255.0', 'localIp': '192.168.0.79', 'gw': '192.168.0.1'}
AP: {'ssid': 'xxx', 'bssid': 'xx:xx:xx:xx:xx:xx'}

but most times get 'time out' result.

syssi · 2018-11-22T09:21:02Z

Could you place the device next to your access point just for testing? May be your Wi-Fi connection is unstable/lossy.

herolee · 2018-11-22T09:31:04Z

OK,i'll try again later.

herolee · 2018-11-22T11:47:43Z

I have putted the device next to the AP but get the same result,always time out.

syssi · 2018-11-27T07:21:33Z

Hmm... it's hard to help here because it looks like a firmware issue or protocol incompatibility.

herolee · 2018-11-27T07:32:58Z

OK.Hope the next firmware will fix this issue.
Anyway,thank you for your reply :)

m1yuan · 2019-02-18T13:33:45Z

I think Xiaomi use a new protocol for device with ESP32 chip. I tried to capture both local network and remote access from io.mi.com communication between Mijia.app and this device.

The communication between app and io.mi.com is like:

{"id":188,"method":"get_air_data","accessKey":"******","params":{"systemInfo":{"mobileModel":"iPhone10,2","sysName":"iOS","sysVersion":"12.1.4"},"ownerId":"***","userId":"***","platform":"iOS"}}

{"code":0,"id":198,"result":{"co2e":721,"humidity":46.799999,"pm25":4.800000,"temperature":18.400000,"temperature_unit":"c","tvoc":0.713078,"tvoc_unit":"mg_m3"}}

And the local communication is disappeared. 1st Gen Air Quality Monitor was using udp 54321.

myvolkov · 2019-03-07T12:32:37Z

I have the same problem for new firmware:

miiocli airqualitymonitor --ip 192.168.1.37 --token XXXXXXXXXXXXX info
Model: cgllc.airmonitor.b1
Hardware version: Linux
Firmware version: 3.4.4_0087
Network: {'mask': '255.255.255.0', 'gw': '192.168.1.1', 'localIp': '192.168.1.37'}
AP: {'bssid': 'xx:xx:xx:xx:xx:xx', 'ssid': 'WIFINET'}

than

miiocli airqualitymonitor --ip 192.168.1.37 --token XXXXXXXXXXXXX status
ERROR:miio.device:Got error when receiving: timed out
Error: No response from the device

and if try again ask info after status

miiocli airqualitymonitor --ip 192.168.1.37 --token XXXXXXXXXXXXX info
ERROR:miio.device:Got error when receiving: timed out
Error: No response from the device

looks like it hangs during several minutes after wrong request

@mwenyuan, how did you dump and decrypt communication between app and io.mi.com?

fwestenberg · 2019-03-20T19:11:17Z

Hi guys,

Any progress on this one? I'm also having this product and issue. I really want to use it in Home Assistant. Let me know if I can help!

syssi · 2019-03-20T19:19:05Z

@fwestenberg Your device doesn't respond, too?

fwestenberg · 2019-03-20T21:06:05Z

No, just the info endpoint as mentioned above..

m1yuan · 2019-03-27T02:32:46Z

@myvolkov mijia.app connects to io.mi.com by https, so I use surge.app to MitM and capture the traffic.

euroiasi · 2019-03-29T15:02:23Z

Hello ! I have a problem with Xiaomi Mijia Smart Air Detector 3.97 Inch HD touch screen Intelligent Linkage 3 High-precision Sensors.

Someone can find a solution ?
Thank you very much !

Saniksanik · 2019-08-26T19:34:22Z

You must call method "get_air_data"

syssi · 2019-08-26T20:06:25Z

Could somebody provide some example payload of the get_air_data response?

skysilver-lab · 2019-08-26T20:08:31Z

Could somebody provide some example payload of the get_air_data response?

https://mjdm.ru/forum/viewtopic.php?f=5&t=4863&start=770#p106185

{"result":{"co2e":1264,"humidity":45.400001525878906,"pm25":31.5,"temperature":29,"temperature_unit":"c","tvoc":0.3199849128723145,"tvoc_unit":"mg_m3"},"id":11}

syssi · 2019-08-26T20:18:14Z

This is enough to provide basic support of the device.

DiegoAstuy · 2019-09-11T00:30:02Z

sorry one basic question it is possible to get the url command in order to integrate it in HA with the information from skysilver?

fwestenberg · 2019-10-13T22:44:06Z

Added pull request #562
Working fine with Home Assistant locally, hope it will be released soon!

rytilahti · 2019-10-20T14:19:44Z

The next version will contain support for thanks to @fwestenberg - closing this issue now.

sayzard · 2020-01-06T05:38:40Z

I found the solution. there are two things must be modified.

id must be unique
accessKey: token on the payload

Send b'{"id": 5, "method": "get_air_data", "accessKey": "5a6a6734316c6c5a434d584a32483756", "params": []}\x00'

Response {'co2e': 1120, 'humidity': 30, 'pm25': 41.5, 'temperature': 23, 'temperature_unit': 'c', 'tvoc': 1.0229264497756958, 'tvoc_unit': 'mg_m3'}

fwestenberg · 2020-01-06T05:42:33Z

I found the solution. there are two things must be modified.

id must be unique
accessKey: token on the payload

Send b'{"id": 5, "method": "get_air_data", "accessKey": "5a6a6734316c6c5a434d584a32483756", "params": []}\x00'

Response {'co2e': 1120, 'humidity': 30, 'pm25': 41.5, 'temperature': 23, 'temperature_unit': 'c', 'tvoc': 1.0229264497756958, 'tvoc_unit': 'mg_m3'}

Solution to what problem? The integration is running fine here.

sayzard · 2020-01-06T05:45:53Z

I found the solution. there are two things must be modified.

id must be unique

accessKey: token on the payload
Send b'{"id": 5, "method": "get_air_data", "accessKey": "5a6a6734316c6c5a434d584a32483756", "params": []}\x00'

Response {'co2e': 1120, 'humidity': 30, 'pm25': 41.5, 'temperature': 23, 'temperature_unit': 'c', 'tvoc': 1.0229264497756958, 'tvoc_unit': 'mg_m3'}
Solution to what problem? The integration is running fine here.

For an example)

airqualitymonitor.py

def __init__
  start_id: int = 0 -> unique number (not the same as previous)

device.py

        if command=='get_air_data':
          cmd = {"id": self._id, "method": command, "accessKey":codecs.encode(self.token, "hex").decode()}
        else:
          cmd = {"id": self._id, "method": command}

miiocli airqualitymonitor --ip IP --token  TOKEN raw_command get_air_data "[]"

DiegoAstuy · 2020-01-07T01:06:59Z

Integration is working fine in my side too, but not all the parameters from the unit are shown in HA; I just got CO2e, TVOC and PM2.5 but no Temperature, Humidity and battery. I don´t know if I´m missing something

rytilahti · 2020-01-10T19:59:13Z

Please open a separate issue for that, the basic support is already in place.

syssi added a commit to syssi/python-miio that referenced this issue Nov 22, 2018

Add Xiaomi Air Quality Monitor 2gen (cgllc.airmonitor.b1) support (Cl…

d52917f

…oses: rytilahti#419)

syssi changed the title ~~Support for Xiaomi Air Quality Monitor~~ Support for Xiaomi Air Quality Monitor 2gen Nov 22, 2018

syssi added a commit to syssi/python-miio that referenced this issue Jan 17, 2019

Add Xiaomi Air Quality Monitor 2gen support (Closes: rytilahti#419)

0069369

rytilahti closed this as completed Oct 20, 2019

Repository owner locked as resolved and limited conversation to collaborators Jan 10, 2020

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Support for Xiaomi Air Quality Monitor 2gen #419

Support for Xiaomi Air Quality Monitor 2gen #419

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Support for Xiaomi Air Quality Monitor 2gen #419

Support for Xiaomi Air Quality Monitor 2gen #419

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