Schedule feature in HA_thermostat end device (TZ-1529)

[GangadharShinde-Copeland]

Question

How is time parameter considered in the set schedule command? I understand that it is in minutes from midnight (e.g 06:00 AM: 480min).
How does sdk know what time is it to change the attributes?
Does sdk automatically synchronize its time with UTC?
Do we need to declare/initialize anything for sdk to trigger attribute change events as per schedule?

Additional context.

No response

[lhespress]

@GangadharShinde-Copeland

• ESP_ZB_ZCL_CLUSTER_ID_TIME is used for sync its time with coordinator.
• esp_zb_get_utc_time_callback_register is used for sync UTC time.
• No, you don't do anything.

[GangadharShinde-Copeland]

@lhespress
For set schedule command to work properly, do I need to declare/initialize the time cluster in my application program?

Does sdk itself manage the time and time-zone for the schedule and update the attribute as per schedule?

[lhespress]

@GangadharShinde-Copeland

• Yes, you need declare/initialize the time cluster in your application program.
• No, SDK doesn't care the time zone which get real time by esp_zb_get_utc_time_callback_register function.

[GangadharShinde-Copeland]

@lhespress
Thank you, I appreciate your response.
I have one follow up question. You said SDK gets the real time by using esp_zb_get_utc_time_callback_register function.

where does the SDK get the real time from? (Zigbee HUB?)

[lhespress]

@GangadharShinde-Copeland The example as follows:

static uint32_t zb_utc_time_handler(void)
{
    return real time;
}

static void esp_zb_task(void *pvParameters)
{
    ......

    esp_zb_get_utc_time_callback_register(zb_utc_time_handler);
    
    ......
}