Archive for the ‘Clocks’ Category

TicTocTrac: track your perception of time

Monday, May 14th, 2012

TicTocTrac Wristwatch

Brian Schiffer and Sima Mitra, from Cornell University, propose a very nice wristwatch that allows you to keep track of your time perception, using a method known as duration production: TicTocTrac.

Human perception of time is typically distorted, due to the different amount of information and experiences acquired everyday. TicTocTrac lets you to estimate your own perception, first by signaling the perceived duration of a given event and, then, by comparing it with the actual event duration. Finally, all the information can easily be saved to a micro SD card.

The hardware is based on a Atmega32u4, a DS3234S real-time clock and several leds to display time, while the software part is mostly based on Arduino’s DS3234S RTC library.

More information can be found here.

[Via: TicTocTrac]

Retro Pinball Clock Hack

Wednesday, October 5th, 2011

[Alan Amon] posted a cool vintage hack on Instructables, adding GPS-based clock funcionalities to a Bally Wizard pinball.

Pinball machine will automatically power up at the preset time each day and then resets to display the current time, the year, the time the alarm is set for and the date month/day. Then as long as the GPS has a signal the time will update once a minute for the rest of the day.  At the time you would like to go to bed the Arduino will cut power to the game and it will remain off until the alarm time. Should you have a power failure in the night the machine will not lose it’s settings. If power is restored prior to the alarm time the machine will wake up as normal, otherwise the machine will wake up once power is restored.

If the game is powered on because it is not yet bed time and it is after the alarm time then at 12am, 1am or 1pm the game will do a full reset. This makes sure the clock hasn’t gotten off due to a stuck score reel, keeps the time in a 12 hour format and keeps the date display up to date.

Have a look at the “cool features” and “coolest features” in the instructables article

via [PCWorld] source [Instructables]

Heart Spark Logging & Blinking Your Beat

Wednesday, February 2nd, 2011

Sensebridge is a little board that logs up to 61831 heart beats, about 14 hours of data. It is based on a atmega 168, a Real Time Clock, and 512 Kbit EEPROM. And it’s released open source.

The Heart Spark is a heart-shaped pendant which flashes little lights (light emitting diodes, LEDs) in time with your heart beat. A polar chest strap with transmitter (sold separately) is used to measure your heart beat, which is transmitted wirelessly to the pendant. An arduino-compatible circuit captures each beat as it happens and flashes LEDs (later versions will log data to an onboard EEPROM – see below). The pendant is carefully designed to maximize its visual appeal, including symmetry and optionally a high-gloss epoxy coating (as pictured to the right). A CR2032 coin-cell battery provides 8+ hours of battery life. Two small switches on the back allow selection of operating mode:

via [SenseBridge]


The Equinox Clock

Wednesday, September 22nd, 2010

The Equinox Clock is an Arduino-based creation that lets you tell the time with a rainbow-hued ring of LEDs illuminating your wall. Its hollow circular shape looks a lot like that bladeless fan, the Dyson Air Multiplier.

[BranKnaapen], who made it, explains how the clock has been done.

via [Gizmodo] and  [The Daily What] and [Gawker TV] source [Bram Knaapen]


Alarm clock that finds perfect time to wake up

Monday, July 19th, 2010

Wow. Original Arduino-based alarm clock “Alarm clock that finds perfect time to wake up”. I don’t think the project (code and schematics) is going to be posted. Still a nice project to be inspired of: the alarm listens to a numeber of sensors around the house and monitors the quality of your sleep.

Probably you know the feeling when you get out of bed on the wrong side. The only way to avoid this is to get up at the best time of sleep rhythm. How to do that? The only way is to keep track of various parameters of sleeping human and then decide when it’s time to get up. So the following project is what it tries to do. It is based on Arduino and measures various parameters like quality of air like temperature, humidity, dew point, light level and of course tracks time along with sleep pattern.

I totally need one ;)

via [Embedds]

Scrolling text on the Dual RG matrix shield

Friday, March 19th, 2010

Very nice implementation of the “Dual RG matrix shield” of WiseDuino‘s IllyClock.

Now you can edit a scrolling text to diaply longer statements. Code ready.


via [WiseDuino]

Simple Binary Clock for Arduino

Wednesday, March 3rd, 2010

Binary clock using Arduino.

If someone wants to make the circuit all it is is each LED is connected to a digital pin from 1-13, and 2 tact switches connected to analog 0 and 5. The LED numbers are the right most column bottom LED is LED 1 and counts up. The next column over would be LED 5 and counts up and so on.

here’s the code.
Via [HackThePlanetNow]
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Hard Drives Hacks: the HD Clock demistified

Wednesday, February 17th, 2010

In this *Epic* Instructable many question that came out from a previous post are answered. Check also Ian Smith’s version of the same.

Introducing IllyClock – alarm clock in a coffee can

Friday, February 5th, 2010
“The electronics is based on Wiseduino (Arduino clone with DS1307 real time clock on board), with a LED matrix shield sitting on top. The shield is built with 74HC595 shift registers that drive two bi-color (red, green, and orange by subtraction) 8×8 LED matrices.
The clock uses a rotary encoder with button as the only user input.
The functionality is simple and intuitive:
  • time is shown as hour and minutes;
  • clicking the button will show, using the symbol of a bell, the state of the alarm (enabled or disabled);
  • double clicking the button will show the alarm time and allow the user to set the alarm hour and alarm minutes (toggle between the two by clicking the button); increment the numbers by rotating the knob;
  • holding down the button will allow the user to set the time;
And here is an original feature: three hours before the alarm will sound, the time is shown in orange; one hour before the alarm will sound, the time is shown in red. So just by squinting at the clock, one can realize how much longer one can sleep.”
via TimeWithArduino

Arduino Hard Drive Clock by NatureTM

Friday, January 29th, 2010

Crazi spinning HardDrive Clock from Hacked Gadgets Forum contributor NatureTm.
No code provided (yet?)

“The first interrupt just records the time that the slot reaches the sensor and sets the position to zero. [It actually sets the position to the offset value since the sensor isn't at 12 o'clock and I like to think of 12 as pos 0.] Now I can tell how long a rotation takes and how long it has been since the last completed rotation.”
Via hackedgadgets (read the original forum post here).