| The Mengenlehreuhr (“Set Theory Clock”) or Berlin-Uhr (“Berlin Clock”) consists of 24 lights. The top yellow light shows seconds, the two to...
| The Mengenlehreuhr (“Set Theory Clock”) or Berlin-Uhr (“Berlin Clock”) consists of 24 lights. The top yellow light shows seconds, the two to...
| Here is yet another fruit of lockdown labor. With some time and effort, you too can combine four 16x16 NeoPixel LED matrices into one large...
| NTP-based Internet time, WS2812-type RGB LEDs, and a Wi-Fi connection with an ESP8266 are three popular ingredients for building clocks. Thi...
| Controlling 1024 Neopixels and a GPS to create a big wall clock.
| NeoPixel clock using NTP and a minimum of hardware.
| This model airplane banner shows the time and some local online weather information. It is based on an ESP32 programmed in BASIC, which is,...
| Oh nostalgia. Since 2003, some of SparkFun’s hallmarks have been crazy products, edgy projects, and a quirky culture. Invited to guest-edit...
| Over the years all sorts of numerical displays have been conceived, from mechanical split-flap displays through nixie tubes to 7-segment and...
| This multi-function clock is based on an ATMmega2560 Pro Mini board and features six PWM-controlled 7-segment color displays. This clock syn...
| This RTC module with calendar function is built with the RV-3029-C2 integrated circuit from Micro Crystal. The IC communicates time and cale...