## Solar-Oriented, Arduino-Powered Clock

This is a clock designed to keep accurate time (independent of atomic or GPS), display local sunrise, sunset and solar noon, and also adjust itself for daylight savings time. I wanted the clock to be easy to use and be flexible. The setting functions are menu-driven, you set each parameter one digit at a time (with live data validation) and you can abandon changes if you want. You can have 12 or 24-hour tim ...

## Binary metric clock using Arduino

This is a very odd kind of clock, which can easily be made with simple supplies. To begin the explanation, I would like to say that I have always wanted time to be metric. 5 o'clock would be mid-day, 7:5 would be three quarters (6:00 pm), and so on. This prototype tells deci-days, centi-days, and milli-days, in that order. For those that are unfamiliar, ten deci-days are in a day, ten centi-days are in a de ...

## Binary Clock

Introduction In this project, 16 LEDs are used to represent the time in binary. The time is read from a Real Time Clock breakout board - the same one used in the Digital Clock page. The binary clock uses 4 place values for the hour (12hr format), 6 place values for the minutes, and 6 for the seconds. So the following pattern...   ... makes the time, 8+2 = 10 hours, 16 + 4 + 1 = 21 minutes, 4+2+1 = 7 se ...

## Building IllyClock – Arduino-based alarm clock in a coffee can using arduino

Updated Aug 4, 2011 A streamlined version is now described here. Beside the enclosure, the original feature of IllyClock is showing the time in colors: 3 hours before wake-up time, color changes from green to orange; 1 hour before wake-up, the time is shown in red. One can estimate how much sleep is left just by squinting at the clock. Parts you will need: - Illy coffee can (250g); chosen because it is easy ...

## Sleek word clock using arduino

nspired by drj113's great instructable on making a word clock, I wanted to make my own.  After seeing the (extremely overpriced) commercial "qlocktwo" word clock, I decided to borrow its smooth glossy black design while basing the innards of my clock on drj113's design. In the end, I managed to stuff the arduino and LED's inside an IKEA shadow box, and used printed transparencies to create the black letter ...

## Lunchtime Clock using arduino

Have you ever wished lunchtime were longer, but didn't know where to find those few extra minutes? Well, wish no longer! Thanks to great in advances in clock technology, I present to you a clock that speeds up 20% every day at 11:00 and slows down 20% every day at 11:48, giving you an extra twelve minutes of lunch to enjoy. Twelve minutes may not seem like a lot but, to put it into perspective, this is a fu ...

## Arduino GPS Clock usign arduino

I had a Holux M-1000B Bluetooth GPS module that was just gathering dust in my room. I had bought it from DealExtreme back in the days when I had GPS-less (but external GPS capable) Nokia E51. Upgrading to a Nokia E52 has since made this receiver redundant. However, since getting an Arduino, and being put off by the price of GPS shields for them, I decided to use the GPS receiver I already have. Once the rec ...

## DS1307 I²C Clock using arduino

I wanted to learn how to interface with I²C devices using my Arduino, so I bought a DS1307 clock and crystal kit from Earthshine Electronics. I've no association to them, but I'd recommend having a look at their shop. Their prices are very reasonable, unlike most Arduino component retailers. I²C is an addressable serial interface. That means that you can communicate with many I²C devices using the same 4 pi ...

## Single Digit Decimal counter using Arduino

“Hello world”,I am not going to start this blog with typical “Hello world” program,since lot of resources already covered Arduino way of telling “hello world”,that is Blinking a LED. This project is absolutely for beginners who prefers to run than taking a walk,I am going to control 7 segment display to automatically count numbers from 1-9 using Arduino,well I hope you know the basics of 7 segment display.I ...

## Control an Arduino With a Wristwatch

The watch The Texas Instruments eZ430 Chronos is a cool gadget. It has bidirectional radio communication, and a whole bunch of sensors: temperature, pressure, acceleration. In fact, it is a development kit for the MSP 430 (a low-power microcontroller), that TI packaged as a watch (pure genius!), and delivered with plenty of tools. Its firmware can be modified to implement new features into the watch. Even w ...

## Tag Archives: arduino speaking clock

How to: Speaking Clock Hello :) Setup and Procedure The wave shield is interfaced with the Arduino Mega 2560 as normal. A couple of pins were remapped because the wave shield was initially made for a different device. The DAC pins were remapped to pins 22,23,24 and 25 on the Arduino board. The WaveHC library also has to be modified to accommodate these changes. It is self-explanatory. The SD card communicat ...