hi i am on a project which record sound and play it via old phone. i designed a pcb but couldn't decide how should be my out connection. i think that tunik type connection would be suitable(never used bfore) but maybe clemens or rj45 will be more suitable. this is my first design and i am widely open to your corrections.
1-cable plug and remove when caryying sytem or any malfunction. lets say once a week.
2- cable will carry microphone signal, speaker signal, 5 volt ,3.3 volt, motor driver pins,ground and one interrupt pin.
3- max current is 1A and it is not continuous. voltages is 3.3 v,5v and 12 v