ThingSpeak watchdog - set send interval limit

[anjoze (JAnjos)]

I’m trying to set up Thingspeak on my Home Assistant to send just a “signal” so I can get a notification if the server die or lose the Internet connection.
In my case I want to send the value “1” every 45 seconds.
The example I’ve found are always based on sensor values change. I don’t want that.
I need some guidance because I don’t know the best way to do it.
Can I create a timer to call a “sensor” like this ones?

ThingSpeak

RESTful sensor to read data from Thingspeak

Solved!! - platform: rest name: Sensore Thingspeak json_attributes: - field1 - field2 - field3 - field4 resource: https://api.thingspeak.com/channels/xxxxxx/feeds/last.json?api_key=myapikey value_template: '{{ value_json.created_at }}' - platform: template sensors: temperatura: friendly_name: 'Temperatura balcone cucina' value_template: '{{ state_attr("sensor.sensore_thingspeak", "field1") | round(1)}}' device_class: …

Thanks for any help

[anjoze (JAnjos)]

Ok…
After some tests i tried this:

sensor:
  - platform: rest
    name: thingspeak_heartbeat
    resource: https://api.thingspeak.com/update?api_key=XXXXXXXXXXXXXXXXXXXX&field1=1
    method: GET

After restarting HA it started to automatically to send value “1” from 30 to 30 seconds!!!
This is what I wanted YEY!!! But I don’t understand why…

Shouldn’t I have to create some kind of a Trigger or Scene to call it?
This is the Tingspeak sensor with a 30s countdown: