So, you can easily make this home automation project at home just by using an ESP32 and relay module. Or you can also use a custom-designed PCB for this project. This is the complete circuit diagram ...

This code is a sample project for 32 channel relay control in WAN by web http string. It's very easy to use. The software according to KinCony's KC868-H32/W smart controller's protocol. the relay will ...