Back in another lifetime, X10 designed a RF interface to their powerline controllers ... the Firecracker had 2 versions one uses a comport the other a usb ... I have a Serial Port version that still works ... wrote a C code version to work with HA (home assistant) ... but thinking this could be more ...

Wondering whether assigning a fixed LAN IP and nonstandard port to an ESP32 along with GATEWAY, DNS1, & DNS2 also set to this same fixed LAN IP would provide an adequate level of INBOUND/OUTBOUND INTERNET SECURITY?

The premise being any Internet inbound traffic attempting to hack common ports won ...

Pieced a bunch of simple snippets together to build a Web-based button that basically turns on a relay for N seconds ... played with this on and off for over a month in my spare time and didn't take notes ... now just wanted to document this by installing a fresh copy of the Arduino IDE and the ...