Such as the Arduino Nixie tube clock shield that is compatible with Arduino Uno, Micro, Nano microcontrollers but apparently works best with the new Arduino Nano 33 IoT development board.

I wanted to use a compact device to measure and display the speed of some orbiting wheels. I quickly created a simple but compact digital tachometer using an Arduino Uno microcontroller and a pretty ...

The Chrono-tomic Arduino shield uses a C-MAX radio to demodulate the WWVB signal, ... sending the time to an MCP79410N real-time clock module.

1Sheeld, A Super Clever All-Purpose Arduino Shield, Goes Up On Kickstarter And Immediately Breaks Its Goal. ... slider, keypad, or LCD display without you actually having to wire anything up.