This DIY clock takes after grandma’s in a number of ways. For example, assuming you follow the instructions to the T, the case should be printed using wood and copper PLA. Apart from that, all of the inner workings are just like those found in grandma’s clock.
The software is special: the clock corrects itself via software and an Internet connection to a NTP clock server!
At regular intervals, the software will poll the NTP clock server, and the time received – from the NTP server – is recorded in the ESP32 clock. Whenever it’s 12:00 (either noon or midnight) and the clock happens to be off for any reason, the software will fast-forward the hands to the 12 o’clock position, from which point the clock will resume its operation.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.