Raspberry Pi Pico Mini Rack GPS Clock (opens in new tab)

I wanted to have the most accurate timepiece possible mounted in my mini rack. Therefore I built this: This is a GPS-based clock running on a Raspberry Pi Pico in a custom 1U 10" rack faceplate. The clock displays time based on a GPS input, and will not display time until a GPS timing lock has been acquired. When you turn on the Pico, the display reads ---- Upon 3D fix, you get a time on the clock, and the colon starts blinking If the 3D fix is lost, the colon goes solid When the 3D fix is re...