After this tedious step, he designed a PCB that hosts an Arduino Nano to accept input, two MCP23017 GPIO expanders to give it enough outputs, and CD4066BE CMOS switches to trigger the connections.

ESP8266-TinyConfig is a lightweight library that simplifies configuration management for your ESP8266 projects. 🌟 With its easy-to-use API and JSON storage, you can quickly manage your settings and ...

Place the SR74HC595 library folder into your \Documents\Arduino\libraries folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.