How to make electrocardiogram animation with canvas?

Question

JavaScript

Hello, I have experience with Canvas, but still not enough experience to implement electrocardiogram animation. I asked a question on this topic a couple of days ago and they gave me a good code, I sorted it out.
Help me out, please, I can do everything except this animation, I don’t want to refuse the project and let the customer down too, a good person.

Animation is needed by type: https://www.youtube.com/watch?v=tpi5RoNmvTU&app=desktop
The code I have on hand: How to make a cardiogram on canvas?