Content for RTC

RTC

A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time. RTCs often have an alternate source of power, so they can continue to keep time while the primary source of power is off or unavailable. This alternate source of power is normally a lithium battery in older systems, but some newer systems use a supercapacitor, because they are rechargeable and can be soldered. The alternate power source can also supply power to battery backed RAM.

FM Radio with Clock Function

“Clock radio using the RDA5807M and RTC DS1302 I liked the original radio design and use of the miniature RDA5807M Stereo radio module and decided to modify the code and add a clock to the design. After trying to use …

SG-2.0 Wireless Weather Station

“In this paper we have presented how to implement a Weather Station[1] to monitor various parameters: - Temperature (indoor + outdoor); - Humidity (indoor + outdoor); - Pressure; - Altitude; The practical project is based on the Arduino Nano Interface[2] and involves the use …

Project  O-Clock

O-Clock

“This clock uses side glow fiber optics to tell the time in a colorful way. Red/Green/Blue = Hour/Minute/Second. The light comes frn an LED strip that makes the fiber glow. But it also emits light at the …

Powering a ProMini logger for One Year on a Coin Cell

“The EDU build we released in 2020 provides remarkable flexibility for courses in environmental monitoring. However an instructor still needs to invest about five days ordering parts, testing components, and preparing kits for a 15-20 seat course being run remotely …

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 …