Support Qingping/Cleargrass broadcast (not encrypted)

Mostly base from the work in https://github.com/1technophile/OpenMQTTGateway

As far as I know, the CGD1 braodcast all the data in unencrypted form. also this shoud also work for https://fr.aliexpress.com/item/33043333798.html

How to parse the value:

1. Start with 0xCD 0xFD (instead of 0x95 0xFE for xiaomi)
2. After 2 Bytes : 0x08 x0C for the CGD1, for the one with air pressure 0x08 0x09
3. 6 Bytes : Reversed MAC

And after it’s list object until the end, Object is : 1Byte type, 1Byte length, length bytes

I have found three object: 0x01, temperature and humidity, with length 0x04, it’s the same as xiaomi 0x100d 0x02, battery, with length 0x01, it’s the same as xiomi 0x1004 0x07 air pressure. with length 0x02, it’s double (uint16 value / 100)

one exemple: CD FD 08 0C BF 65 52 34 2D 58 01 04 F1 00 AD 01 02 01 25 There is 2 object:

• one of type 0x01, with temperature 0x00F1/10°C and humidty 0x01AD/10%
• one of type 0x02, with battery 0x25%

[Ernst79]

1.0.2 final has been released with support for CGG1, CGD1 and CGP1W.

CGDN1 is not added yet, this one needs further investigation. This sensor is moved to issue #269

[andrewjswan]

Now I don’t know, i now on release branch…

пт, 5 февр. 2021 г., 20:31 Ernst Klamer [e-mail]:

I had it working before …

Do you mean it worked, and now it doesn’t anymore?

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