Hardware Help for Connecting a phone to a Circuit

Hi everyone,

I am trying to make a simple mini at home project and need some advice.

I have built a circuit that has a simple output when a phone is connected via a USB chip. However, I want to take this to the next level and program it so that the circuit only outputs once a notification has been accepted by the user on the devices screen.

Would you be able to please recommend the best chip to use to achieve my goal? One that I can also integrate APIs into would be an added extra if its possible.

Thanks in advance!

This sort of question might be somewhat out of scope for these forums, but you might get lucky and find someone who knows their stuff.

Could you be more specific about your setup and what you’re trying to accomplish?