RE: Zigbee - Power On Behaviour

Amanda Hsieh — Tue, 21 Mar 2023 20:23:08 GMT

Hi,

The attributes are supported in the SDK. You can find them here:

zb_zcl_on_off_attr_e (ZB_ZCL_ATTR_ON_OFF_START_UP_ON_OFF)
zb_zcl_color_control_attr_e (ZB_ZCL_ATTR_COLOR_CONTROL_START_UP_COLOR_TEMPERATURE_MIREDS_ID)
zb_zcl_level_control_attr_e (ZB_ZCL_ATTR_LEVEL_CONTROL_START_UP_CURRENT_LEVEL_ID)

We do not have implementations on the local actions the device will take when receiving a write attributes command for these attributes, but this is something the customer can implement themselves. The light bulb sample is a good example to look at for how to do this.

In zcl_device_cb(), device_cb_id (used in the switch expression) is ZB_ZCL_SET_ATTR_VALUE_CB_ID when a device receives a write attributes command. So they can use this, check the cluster ID and attr ID, and then add what they want the device to do when the attributes have changed.

...
case ZB_ZCL_SET_ATTR_VALUE_CB_ID:
    cluster_id = device_cb_param->cb_param.
                set_attr_value_param.cluster_id;
    attr_id = device_cb_param->cb_param.
            set_attr_value_param.attr_id;
    if (cluster_id == ZB_ZCL_CLUSTER_ID_ON_OFF) {
        if (attr_id == ZB_ZCL_ATTR_ON_OFF_START_UP_ON_OFF) {
            // Do something        }
    }
...

Regards,
Amanda H.