Skip to main content

This Fibonacci clock forces you to do math to tell the time

the fibonacci clock requires math to tell time
Image used with permission by copyright holder
Some people like a little challenge in the morning, and that’s what Philippe Chretien hopes to offer with his new device. He is the man behind the Fibonacci Clock, which is exactly what it sounds like: a clock that uses the Fibonacci sequence to display the time.

To back up a little bit, it’s essential to understand the Fibonacci sequence. Developed by mathematician Fibonacci in the 13th century, this sequence of numbers starts with one and one. Each subsequent number is the total of the previous two numbers (so one and one makes two, two and one makes three, and so on). To create this clock, Chretien used five terms: one, one, two, three, and five.

The screen of the clock has a series of glowing, colorful squares, and each one corresponds to a number in the sequence. Hours are depicted in red, while minutes are shown in green. If a square is used to show both hours and minutes, it turns blue. All of the white squares are for decorative purposes; you consider them null while adding up the time.

Of course, you’ll need to do a bit of math in order to get the time of day from this alarm clock. To read the hour, you add up the values of the red and blue squares. For the minutes, you do the same with the blue and green squares. Minutes are displayed in five-minute increments, meaning you have to multiply your sum by five to get the accurate total.

Once you get used to the math, the clock serves as more than just your wakeup reminder; it can be programmed to act as a lava lamp with changing colors.

Additionally, Chertien made the clock to be hackable. The device itself is powered with an Atmega328 microcontroller that runs Arduino, and users can change the clock’s code using Arduino IDE. He designed the alarm clock to be an open-source hardware project, and he welcomes you to customize it to your liking.

For about $95, you can make a pledge on the Fibonacci Clock’s Kickstarter campaign page and receive one in the mail by October 2015. However, you can pledge $62 to receive a DIY kit including everything you need to create your own Fibonacci Clock if you’re feeling adventurous.

Krystle Vermes
Former Digital Trends Contributor
Krystle Vermes is a professional writer, blogger and podcaster with a background in both online and print journalism. Her…
Eve MotionBlinds Upgrade Kit and Blinds Collection join the Matter lineup
The Eve MotionBlinds Upgrade Kit being installed.

Eve is a prominent name in the smart home world, with the company responsible for a variety of devices covering everything from smart plugs and security cameras to smart light switches and motion sensors. Its catalog is growing even more enticing today, with the Eve Blinds Collection and MotionBlinds Upgrade Kit gaining Matter support.

The MotionBlinds Upgrade Kit will likely appeal to more customers, as it costs just $200 and works with most existing setups. Installation is as simple as removing your shades, placing the MotionBlinds Upgrade Kit through the roller rod, then reinstalling the unit on your windows. Blinds with a roller between 1.5 inches and 2.0 inches are compatible with the upgrade kit.

Read more
Philips Hue lights have a rare discount, but there’s a catch
A TV with ambient backlighting from Philips Hue.

One of the cool things about Philips Hue lighting is how much freedom it gives you over creating the perfect ambiance in your home. One of the cool things about buying Philips Hue products over at Best Buy right now is how much freedom Best Buy is giving you over what you buy to save money. Right now, when you buy two or more select Philips Hue smart lighting product in Best Buy's offer builder, you can save 15%. Tap the button below to start building your own bundle and see all of the products available. While they don't include the best smart light bulbs that Philips produces, you'll be amazed by the versatility of the lightstrips. Or keep reading for an overview of some of the top picks from the bundle.

What you should purchase from the Philips Hue offer builder
The place to start with this deal is the and the if you don't already have them. These are the devices that take your movies, music, and games and syncs them to your lights.

Read more
Samsung’s futuristic Jet Bot AI+ robot vacuum is $400 off
The Samsung Jet Bot AI+ Robot Vacuum cleaning the floor.

For families who need a lot of help in keeping their floors spotless, the Samsung Jet Bot AI+ is an investment that you'll want to make. It's pretty expensive at its original price of $1,300, but a $400 discount from Samsung pulls it down to $900. It's still not cheap, but this futuristic robot vacuum could be the only device that you need to keep dirt, debris, and pet hair away from your sight. You're going to have to complete your purchase for it as soon as possible though, as there's no telling when the offer expires.

Why you should buy the Samsung Jet Bot AI+ robot vacuum
The Samsung Jet Bot AI+ checks all the boxes in the features that are recommended by our guide on how to choose a robot vacuum. It's equipped with powerful sensors and object recognition technology that allows it to avoid furniture when it's cleaning your floors, while LiDAR technology allows it to create accurate maps of the rooms in your home so that it can properly navigate and clean more efficiently. The robot vacuum also features a five-layer filtration system that allows it to release clean air, and when it's done, it goes back to its Clean Station where it empties its contents.

Read more