Do not copy from old answer because i will dislike your work and do not use chat gpt I want you to show me your work with clear design from matlab simulink

Do not use chat GPT $?$ Do not use chat GPT $?$ I want to make a gate, install IR infrared sensor on it $,$ and connect it to an Arduino Mega. I want want some one help me to create a program in MATLAB Simulink that starts counting with seconds as soon as an object crosses it $,$and then stops the counter and immediately when the object crosses it $,$and starting a new counter countes with second and then stops the counter when object crosses it $.$ Can someone write the code with the design in matlab simulink and provide the solution for me without using chat GPT $?$