Deep Sleepy End Device does not reliably update (TZ-1291)

[travisp]

Question

https://github.com/espressif/esp-zigbee-sdk/blob/main/examples/esp_zigbee_sleep/deep_sleep/main/esp_zb_sleepy_end_device.c

The deep sleep, sleepy end device example doesn't reliably update because it gives 5 seconds until shutdown, but sometimes it takes more than 5 seconds.

I created my own code based on this example that is intended to report a temperature every 10 minutes, and deep sleep in between. The code uses esp_zb_zcl_set_attribute_val to set the attributes. However, it only actually updates the zigbee network if I increase from 5 seconds (e.g. to 10 seconds). Is there a way instead to detect that the update payload has gone out and that it's safe to enter deep sleep?

Additional context.

No response

[xieqinan]

Hi,

The deep sleep, sleepy end device example doesn't reliably update because it gives 5 seconds until shutdown, but sometimes it takes more than 5 seconds.

The device wake-up time is measured by the ESP timer, which I believe is reliable. I ran the official example without any modifications, and the wake-up time was accurate. If you encounter unreliable timing on your side, please provide some logs or the code used to reproduce the issue for us to investigate.

Is there a way instead to detect that the update payload has gone out and that it's safe to enter deep sleep?

Have you tested whether the report a temperature feature works correctly on a non-sleep device? Also, please check the interval time for the report. The Zigbee stack operates during the device’s wake-up time. You can perform a simple test to verify this, as shown in the code below.

static void ieee_cb(esp_zb_zdp_status_t zdo_status, esp_zb_zdo_ieee_addr_rsp_t *resp, void *user_ctx)
{
    if (zdo_status == ESP_ZB_ZDP_STATUS_SUCCESS) {
        ESP_LOGI(TAG, "Response IEEE address: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", resp->ieee_addr[7],
                 resp->ieee_addr[6], resp->ieee_addr[5], resp->ieee_addr[4], resp->ieee_addr[3], resp->ieee_addr[2],
                 resp->ieee_addr[1], resp->ieee_addr[0]);
    }
}

static void zb_deep_sleep_start(void)
{
    /* Start the one-shot timer */
    const int before_deep_sleep_time_sec = 5;
    ESP_LOGI(TAG, "Start one-shot timer for %ds to enter the deep sleep", before_deep_sleep_time_sec);
    esp_zb_zdo_ieee_addr_req_param_t ieee_req;
    ieee_req.addr_of_interest = 0x0;
    ieee_req.dst_nwk_addr = 0x0;
    ieee_req.request_type = 0;
    ieee_req.start_index = 0;
    esp_zb_lock_acquire(portMAX_DELAY);
    esp_zb_zdo_ieee_addr_req(&ieee_req, ieee_cb, NULL);
    esp_zb_lock_release();
    ESP_ERROR_CHECK(esp_timer_start_once(s_oneshot_timer, before_deep_sleep_time_sec * 1000000));
}