[Question] Writing Zigbee attribute value in Octet format (0x41)?

[Chares]

Heya all,

According to the documentation, zigbee.writeAttribute() doesn’t support octet format (0x41),

How does the SmartThings “st wattr” command expect the octet? with commas? a list? separated by commas? just the octet with spaces?

Example:
“st wattr 0x${device.deviceNetworkId} 1 0 0xFFF0 0x41 {octect_payload}”

where octect_payload might be:

• 0xaa, 0x10, 0x05, 0x41, 0x47, 0x01, 0x01, 0x10, 0x01
• [0xaa, 0x10, 0x05, 0x41, 0x47, 0x01, 0x01, 0x10, 0x01]
• 0xaa 0x10 0x05 0x41 0x47 0x01 0x01 0x10 0x01
• [0xaa 0x10 0x05 0x41 0x47 0x01 0x01 0x10 0x01]

Thanks!

[orangebucket (Graham)]

There is a some older documentation at https://stdavedemo.readthedocs.io/en/latest/device-type-developers-guide/building-zigbee-device-handlers.html if that helps.

[Chares]

Hey Graham,

Thanks for that one, I do have it on my favorites as a good old source of info

I can’t seem to find just one zigbee attribute in my devices with an octet value to see how it comes in the catchall. And I don’t wanna spend more money in either a CC2231 with Zigbee2Mqtt or the ConBee with DeConz just to see what’s there and find a octet value field (Might be a good investment though if I’m gonna keep going the zigbee train )

Maybe @nayelyz would know how the format is expected ?

[nayelyz]

Hi, there! I’ve talked with our engineering team about your question, the suggestion is using zigbee.writeAttribute with DataType.pack. It would be something similar to:

zigbee.writeAttribute(cluster_id, attr_id, DataType.UINT16, DataType.pack(0xDEAD, DataType.UINT16))

0xDEAD would be the hole payload you receive in hex.

[Chares]

Thanks @nayelyz! will give it a try