As usual I’ll be using a NodeMCU board (I really did order a lot of them) which uses an ESP8266, but there’s no reason this would be difficult to achieve on an Arduino-based device.

Posted in clock hacks, LED Hacks Tagged DS3231, ESP8266, glass jar, MAX7219, ntp, ticker ← Bus Raider Allows Classic Micro Emulation On An RC2014 Banksy’s Barely Believable Batteries → ...