Products Description Specifications So powerful, so easy to develop! It's so cheap. This product requires the user to burn and download the program himself, and this shop only provides data and technical support.Problems such as burning damage will not be sold after sale. Beginners should pay attention. The delivery is equipped with ESP-01module Add an ESP-01S module. this intelligent relay module is designed based on ESP-01S WIFI module, which can be used for DIY own intelligent switch, can be remotely controlled by mobile phone APP, and provide APP and LUA source program. Easy to use, simple and convenient. Features: * working voltage of module: DC 5V * relay load capacity: 10a 250vac 10a 125vac 10a 30…