i am the student of electronics engineering and recently i had helped out my friend in the same project you are doing, the project name was Smart ECG machine. If you want prove than i can send.
as a student of electronics it is my field also, so i can serve you better than others.
so get rid from overthinking and place order.
i will work for you with my all efforts and will try my best to prove my self best for you.
I am new on freelancer but the job you offered is my profession.
thank you.