Obviously, this would get annoying after a while, so [Thomas] decided to build an Ethernet enabled relay board so he can open his door with his iPhone. The build is based around an ATMega328 and ...

Board-only Ethernet-based digital I/O board with 24 bit-configurable DIO lines, one counter input, and header connectors. KEY HIGHLIGHTS. The E-DIO24 Series Ethernet ...

However, that’s obviously not all – you also need to know how to add Ethernet to your board and to your microcontroller. Such low-level details are harder to learn casually than the things we ...