Content for RTC

World Alarm Clock

“This small battery powered clock can be configured to display as a analog clock, digital clock, world clock or as a digital alarm clock. This clock is similar to the Nokia Analog Digital Alarm Clock that I built a few …

Talking alarm clock with 8x8x4 matrix display

“Wake to any of 100’s of MP3 messages from SDRAM. Scrolling display w/remote shows clearly w/o glasses. Temp too! This is my second Arduino build. Lots of fab issues have been resolved and this is more of …

DIY Arduino IN-1 (ИН-1) Nixie Tube Clock

“This is another one of the many unusual clocks you can see in some of my previous projects. IN-1 nixie tubes are relatively cheap. Nixie tube is an electronic device used for displaying numerals or other information using glow …

Pico Railway Clock

“Reinvigorating a handsome old clock and making it super-accurate, without any internet. Uses a Raspberry Pi Pico, a radio antenna and a couple of components to emulate a signal from a Mother clock. The DCF77 signal is a radio signal …

AIM65 lookalike computer from scratch

“AIM65 is a legendary single board computer from the 70s. I build on from scratch using Arduino standard components. The idea The Rockwell AIM 65 was one of the early 6502 based computers of the 70s. It had a 20 …

Micro Word Clock

“A 3D printed Micro Word Clock based on a 8x8 LED matrix. Time is shown as words or and as scrolling text. Around 6 months ago I built a Tiny Word Clock using a 60mm x 60mm LED matrix. It …

Nearly-Autonomous Retirement Countdown Display

“A friend at work (Martha Edburg*) writes on her whiteboard the number of days until she can retire. A manager asked if I could make a sign or some kind of display that would automatically count down the time for …

How to Create a Clock Using Arduino, DS3231 RTC Module and OLED Display

“I have made a couple of clock project in the past. I have always used DS1306 module to do it. I received the backlash from my viewers. They questioned why I would use that particuler RTC module labeling it as …

DIY simplest IV9 Numitron clock with Arduino

“Nice looking and simple to build Retro style Numitron tubes clock. This time I will show you how to make a nice Retro style Numitron tubes clock. In addition to the correct time, the device briefly displays the Date, Year …

TRICORDUINO - 3.0 True Scientific Tricorder

“This project describes the development of a multi-mode scanner platform, which can be described as a Scientific Tricorder. A few years ago, after taking my first contacts with embedded electronics, I decided it would be time to try building a …