Skyscraper Tetris Lets the City Know how Good or Bad You Are

If you’ve clocked one-too-many hours at Tetris, it might be time to show the world your skills on this skyscraper-sized display on the Shell Centre in London. [Benjamin], [Tom], and their “army of volunteers” took to the Shell building and assembled their super-screen from a collection of 182 networked wireless lightbulbs, some tracing paper, and mylar to create a playable interface from the Jubilee Gardens below.

[Benjamin] doesn’t deliver many of the technical details on his post, but he does give us an overview. He achieves full wireless coverage of all floors by spacing out 14 TP-Link WR702n routers, each running the same version of OpenWRT. This interface wasn’t [Benjamin’s] first choice, as he would’ve preferred to tap into the building’s existing wireless network; unfortunately, he was left without support from the building’s network team. Equipped with a large donation of wireless bulbs controlled by a central bridge, [Benjamin’s] Python-adaptation of Tetris can refresh the building about about 1-to-2 frames per second. Given his description of the bulb interface, we suspect he’s using the all-too-familiar Philips Hue smart lightbulbs to illuminate the building.

In case you haven’t heard of Faraday’s Christmas Lectures, they’re the UK’s nationally broadcasted “science special” featured at the end of the year and founded in 1825 by [Michael Faraday] himself. The goal of these Lectures is to introduce young people to some aspect from the sciences. We’ve seen giant Tetrises before, but not in a way that inspires such a young audience. We’re thrilled to see that hacking both in software (Python, LAN networks) and hardware (ZigBee, OpenWRT) made the cut for this year’s special. After all, why should MIT keep all the fun to themselves?

If the building-scale is just too big for your taste, why not have a go on your oscilloscope?

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Using Tetris Like MS Paint

Check out Samus looking boss in this pixelated image. Who would have thought of using Tetris as a canvas for these types of graphics? Coming up with the original idea of strategically clearing and leaving Tetris pieces to end up with what is shown above is hard enough. But how in the heck do you implement the algorithm that generated this programmatically?

First off, two thing should not be surprising about this. It wasn’t manually generated during normal gameplay. That would be beyond savant level. The other thing to note is that the order in which pieces occurred was not random, but strategically calculated by the algorithm. The challenge is not only to occupy and clear the correct pixels, but to make sure the correctly colored pieces remain.

You need to see the fast-motion video embedded after the break to fully appreciate the coding masterpiece at work. We’re not going to try to paraphrase how the algorithms functions, but get comfy with the link above which walks through all of the theory (in addition to supplying the code so you can try it yourself).

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Ardubracelet Lets you Play Tetris on your Wrist!

Making your own Tetris game is almost a rite of passage for hackers — [Kevin] has stepped up the game a little by making this awesome-flexible-triple-displayed-Tetris-watch dubbed the Ardubracelet.

At the recent Maker Faire SF our head editor [Mike] got a chance to meet with [Kevin] from Arduboy who told us about some of his upcoming projects — this wearable was one of them!

It features three super bright OLED screens on a flexible circuit board with conductive touch buttons to continue with the minimalist design. Instead of a wrist strap he’s actually made the ends magnetic to hold it in place — did we mention the battery also lasts for over 10 hours?

At the heart of the flexible circuit board is an Atmega328p, which is the same chip used in the Arduboy (a credit card sized GameBoy). This is just the first prototype but he’s planning on making it even better in the future complete with Bluetooth and some 3D printed parts to make it look a bit nicer.

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Tetris Duel with the Raspberry Pi

Tetris Duel

Building a multiplayer network game with multiple Raspberry Pis can be very difficult. Doing it in assembly is outright insane! This is exactly what a group of first year students at Imperial College London did; they created a network based multiplayer Tetris game for the Raspberry Pi.

[Han], [Piotr], [Michal], and [Utsav] have created this entire game from bare metal assembly, and it only consists of 4000 lines of code! The code is well documented, so be sure to look through their Github repository. This project is a great reference for those looking to learn bare metal assembly and networking. They even chose to use the old NES controllers, a very nice touch. While we have featured what seems like a million different Tetris games in the past, this is the first multiplayer version. See Tetris Duel in action in the video after the break!

This is a shout-out to all of you students out there. Take the time to create quality documentation for your class project, and upload it to the internet. Not only is it a great resume boost, but it could very well end up on Hackaday!

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Playing Tetris on an Oscilloscope

Tetris on an oscilloscope

Have engineers stopped putting Easter eggs into technology lately? It’s always been a fun way to connect with your more advanced customer base (i.e. hackers) — anyway, here’s a great Easter egg you can find on the Hewlett Packard 54600B Oscilloscop — Tetris!

[RaffttaM] discovered this trick when a coworker let him know that one of the oscilloscopes in the lab had the hidden feature. A little fiddling later and a game of Tetris was revealed. If you press the Print/Utility button on the 54600B oscilloscope, followed by pressing the second and third button below the screen at the same time, you can launch the game!

Another cool embedded Easter egg is in the Game Boy Printer — If you hold the feed button during power up it spits out a Mario themed image! One of our readers even managed to hack the printer to show the Hack a Day Logo instead!

Do you know of any more modern tech with cool (and sneaky!) Easter eggs? Let us know by sending in a tip!

[Thanks Gregory!]

Handheld Tetris is Retro and We Love It

handheld tetris

[Eduardo Zola] has been playing around with Arduinos, and ever since he started, he wanted to try making a game. Having fond memories of playing Tetris back on Windows 3.1, he decided to try giving a handheld version of it a shot.

He started with two 8×8 Neopixel Matrices due to their simplicity — not to mention the massive library of code available! To make it truly portable, he’s also included a 3.7v 4400mAh lithium ion battery which will keep him gaming for hours. He found a 5-way navigation switch on eBay which makes up the joystick. A small LED bar display tells you what level you’re on, and he’s even included a smaller speaker for music, and a vibrating motor for successfully completed lines in the game!

He borrowed the Tetris algorithm (and added some improvements) from the source code by [Valentin Ivanov], who completed a similar project last fall. Stick around to see a demonstration video of it in action.

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Giant Tetris Adds some Retro to your Room

giant tetris

[Sam] just finished off this awesome 6 foot tall Tetris game using National Instruments myRIO with FPGA.

The build makes use of a 10 x 20 grid of RGB LEDs controlled by the myRIO. It’s played by using a web interface on any device, as long as you have WebSockets support. [Sam] had originally built it using an Arduino at the heart, but wanted a stand-alone device to do everything — no extra computer or Raspberry Pi for the web interface. That’s when he discovered the myRIO — it’s a pretty cool piece of hardware that we haven’t seen too much of yet, other than the recent Picasso with a Paintball gun project…

Don’t forget to watch the following video to see the game in action!

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