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.

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AVR SD Hex Loader ISP

“This project is all about getting your compiled sketch onto your target board without the need to have a connection to a computer running the Arduino IDE. The video demonstrates the operation of the loader. The first board being loaded …

How to Make Arduino Smartwatch With Custom PCB

“Hi all, in this instructable you will see how a smartwatch can be made using an Arduino board and a few other components. We are going to design and get a custom PCB fabricated which will be the motherboard of …

7-Segment NeoPixel Clock With Countdown Timer

“In this Instructable, my twin brother, Sunyecz06, and I will show you how to make a 7-segment NeoPixel Clock with Countdown Timer. The inspiration for this project began with our parents and their fitness room. While they have an older …

ESP8266 NodeMCU Based IoT Alarm Clock With Blynk

“Hello and welcome to our instructable about using ESP8266 NodeMCU Based IoT Alarm Clock With Blynk. This project is made by two students named Valentino Kevin and Ryan Jonathan from BINUS taking a degree in Computer Engineering, and in this …

HexMatrixClock

“Hexagons are cool — they have six sides, they tile a plane, they have a structure like the carbon atoms in graphite, each cell has six neighbors, and there are six cardinal directions. But mostly, they are not square when so …

Digital Clock LED Dot Matrix - ESP Matrix Android App

“The ESP Matrix Board that I developed for use in this project uses PCBWAY PCB services. By following this instructable you can make a Digital Clock LED Dot Matrix at a relatively cheap cost and don’t require coding skills …

DIY Air Quality Monitor – PM2.5, CO2, VOC, Ozone, Temp & Hum Arduino Meter

“Have you ever wondered about the quality of the air you are breathing, or maybe, why you sometimes feel sleepy in the office or tired in the morning even after sleeping all night? Poor air quality can lead to many …

DIY Arduino Christmas Clock

“Merry Christmas! I was recently approached by Elegoo to create a Christmas themed project with their Arduino R3 Most Complete Starter Kit. With the included components in their kit I was able to create this Christmas themed clock that displays …

Microtronic - The Next Generation

“A Practical 4-Bit Educational Computer A re-implementation & extension of a classic 4-bit education system from 1981 - the Busch 2090 Microtronic Computer System. This Next Generation Microtronic offers SDcard-based file storage, extended programming and debugging facilities utilizing its large LCD, a …

Wakeup Light

“As I write this instructable it is mid winter on the Northern hemisphere and that means short days and long nights. I am used to getting up at 06:00 and in the Summer the sun will be shining by …