Trigger communication event by voice only? WiFi or Bluetooth

I’m looking to send a signal from Phone to ESP8266-12 or ESP32f (s) by WiFi / HTTP or Bluetooth. Before I really get started with this project i need to know if it is possible or if you people think it is possible for AI2 to send a signal to a micro-controller after a particular word is spoken without any further user intervention? ie A word is spoken and recognized by voice recognition on the phone and a signal is sent to the micro without any pressing of send button or any such thing.
TIA

Don’t see why not. You would need to set up a list of pairs, the voice command and the micro controller command. In the afterSpeaking event get the voice command recognised (is in list), get the micro controller command from the voice command using the list of pairs block, then do whatever has to be done to send the command.

Assumes app is running and all connections are in place (wifi/bluetooth etc.)

This is posible, you need the web component and only make the HTTP request to send any kind of data.