WhiskeyTangoHotel] wrote in with his newest clock build — and he did warn us that it was minimalist and maybe less than useful. Indeed, it is nothing more than a super-cheap ESP32-C3 ...

You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

The problematic WWVB radio receiver inside an atomic clock is removed and replaced with an ESP8266 Module and an Arduino sketch which synchronize the clock using the Network Time Protocol. Although ...