The build relies on that old stalwart, the Arduino Uno, to run the show. It’s hooked up to a DS3231 real-time clock module so it can keep accurate time for long periods, as is befitting a clock.

The monitor itself is a fairly straightforward Arduino build using a couple of DS18B20 1-wire temperature sensors and a real-time-clock module and displaying their readings on a small OLED screen.

Although there is already an Arduino Wi-Fi shield the WifiDuino device has been designed with a smaller form factor in mind, is more reasonably priced and has been created to be a lot easier to use.

The Black & White Clock is like that, only it’s digital. The clock consists of numbers only: no case, no background, no nothing. Four OLED shapes mimic […] ...