IoT and Sampling Rate

I can access an IoT unit by a local IP address through http, but I must refresh the browser to see any changes. The same thing with curl (duh, http://IP is not a loop). What does it mean to fetch data whenever there is a change on the IoT unit? Do I have to set a sampling rate by sending out HTTP requests? I think there is an internal sampling rate on the IoT unit between the sensor and the Ardunio-compatible ESP32 based device that acts as a webserver.

silly rant. need more coffee.


Try :::


https://shawnhymel.com/1675/arduino-websocket-server-using-an-esp32/