Usually building an electronic hardware product would experience three key parts: circuit board design, PCB manufacturing & assembly, product enclosure prototyping. Thinking when you were doing/are going to do electronic hardware projects, what's the most difficult part(s) for you? Do you find any good solution to make your hardware projects easier? I hope you can share your feedbacks or comments here and the more feedbacks we get, the better solution we can work out for you. Thanks!