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Tag Archives: led clock

Arduino binary clock with seven segment LED displays

Posted on January 12, 2015 by R-B One comment

Brett Oliver’s latest version of Arduino-controlled binary LED clock uses a 4×20 character LCD and three MAX7219-based serial 8-digit seven segment displays to show time and date, which is synchronized to the DCF77 time code transmitter in Germany. The display brightness is auto adjusted to room level using a photoresistor as ambient light sensor. Brett also implemented a PIR sensor for motion detection that will automatically shut down the main 7 segment display and LCD display when there is no body to watch the clock.

Arduino-based binary LED clock

Arduino LED clock

Posted on August 13, 2014 by R-B Leave a comment

This Instructable describes building of a fun and very simple LED clock using Arduino that displays the time to the nearest half hour using LEDs.

LED clock

MSP430 driven RGB LED ring clock

Posted on May 5, 2014 by R-B Leave a comment

This MSP430G2553-based attractive wall clock is comprised of 2 rings of 60 WS2812 RGB LEDs. The PCB ring was constructed by daisy-chaining small and identical arched PCB segment. Visit this instructable for details on construction of the clock and downloading the firmware, which is written in C.

RGB LED ring clock