I am new at arduino. I want to control LED using HC-05 bluetooth and blynk android app, and arduino UNO. I check some various examples. but it didn't work. Please help me out with circuit diagram and code,
This forum is not a free design and programming service. It's here to provide assistance with YOUR design and YOUR code. Post those and ask specific questions to get help. Otherwise, check out Gigs and Collaborations. You might find someone there to do your work for you. But, you'll likely have to pay for it.