Review on 🔌 Sintron 40-Pin GPIO Extension Board + LCD 1602 + Micro Servo Motor Starter Kit - Compatible with Raspberry Pi 1 Models A+ and B+, Pi 2 Model B, Pi 3 Model B, and Pi Zero by Richard Kuntz

Don't expect a PDF from these guys. They send you a link to Dropbox, where you have to go to the trouble of getting a .rar file extractor, and then the sheer volume of PDF files makes you wonder what to do next. The instructions contained therein do not apply to this product. Lots of compilations with their other Sintron products (probably to get you to buy more stuff) and with the Windows C++ code you should be using. I have seen NOTHING in the python code and how to use it. I know this is a kit, but the complete lack of a demonstration of using a breadboard with ONLY male jumpers is NOT a way to sell this product. Nothing good was done. Don't expect any help from these guys as they are overseas. Go elsewhere for grocery kits.