Triggler to create Trigger on a specific Attack value

[BenNelsonNeb]

I do apologize if this is the wrong spot to ask this question. I would like to make a trigger if the attack value = to the AC value or specific value. So, as an example when a creature attacks my PC and attacks with a 15 to hit, and my PC AC is 15, it can send a message. This seems possible with Triggler, but maybe not. Thank you for your time and effort.