Is ESP home only for Homeassistant?

Hi all.

In an effort to learn a bit more I was doing a google on the ESP stuff. Is the use of ESPhome ONLY relavent to Homeassistant? I am looking for coding examples to work out what I can do

No, it can integrate with any MQTT based control system.

It is certainly oriented to HA, but not exclusive to it.

on top of that, you have api, each esphome node creates a server which is using google protocol buffers to communicate so it is easy to create a “server” app which will talk to ESPHome nodes using all languages supported by protocol buffers.

Thanks all. I am trying to work out a way of only sending data (ADC value) when told to and so far I can see it looks like MQTT is the way.