Zed request ZC to read a Cluster

RE: Zed request ZC to read a Cluster

JONATHAN LL — Tue, 19 Sep 2023 20:22:06 GMT

Hi,

Configure attribute reporting for the ZED to report the attributes.
So since you are using nRF5 SDK, I recommend to look at the Zigbee Multi Sensor Example just to get an understanding of binding and attribute reporting/subscribing.

Note that Zigbee CLI does not support reporting on value change by default, but you can see in the replies here a solution: https://devzone.nordicsemi.com/f/nordic-q-a/65547/zigbee-attribute-reporting-only-on-value-change/270995.

Check out the 'Configure Reporting Command' section in the Zigbee Cluster Library specification.

Once reporting is configured correctly, the ZED should automatically send a report when the value changes (according to the threshold), which the ZC will then receive.

Regards,
Jonathan

RE: Zed request ZC to read a Cluster

AndrewDF — Thu, 14 Sep 2023 17:29:01 GMT

This is how the attribute is set on ZED:

#define ZB_SET_ATTR_DESCR_WITH_ZB_ZCL_ATTR_ERROR1_ID(data_ptr) \
{ \
ZB_ZCL_ATTR_ERROR1_VALUE_ID, \
ZB_ZCL_ATTR_TYPE_U8, \
ZB_ZCL_ATTR_ACCESS_READ_ONLY | ZB_ZCL_ATTR_ACCESS_REPORTING, \
(void*) data_ptr \
}

how does the ZC get the updated value?

RE: Zed request ZC to read a Cluster

JONATHAN LL — Thu, 14 Sep 2023 10:46:17 GMT

Update:
If the attribute supports attribute reporting then they can configure reporting on attribute value change. They just need to use the reportable change field in the 'configure reporting' command.

From ZCL spec:

Regards,
Jonathan

RE: Zed request ZC to read a Cluster

JONATHAN LL — Wed, 13 Sep 2023 14:39:27 GMT

Will be taking our as Sigurd is Out of Office ATM. Working on getting the developers to provide some feedback. Will update when i have more info to share or questions to ask.

Regards,
Jonathan

RE: Zed request ZC to read a Cluster

AndrewDF — Fri, 08 Sep 2023 15:35:58 GMT

I am using NRF5_SDK 17.1. The hardware is nrf52840. The zigbee version is 4.2.

I don't know if I need to be looking for Zed to send alerts, alarms, or something else to accomplish this.

RE: Zed request ZC to read a Cluster

Sigurd — Thu, 07 Sep 2023 16:44:27 GMT

Hi!

I will check with our Zigbee developers. What SDK , and SDK version are you using?