I made some esp32 intelligent household products, is a complete product, packaging, shell, WeChat small program, use the tutorial, seen this product also said is very good, I early on taobao opened a shop selling, also do the advertising, various electronic BBS are released, but there is still no improvement, also imitate B station made a video, but no one to watch, I want to say is others hesitate in I can product, or is not good sell? Welcome to some advice, if the useful advice, all previous product profit gift, thank you,