Schlagwort: mega

  • Creating a classroom quiz machine with Arduino

    Creating a classroom quiz machine with Arduino

    Reading Time: 2 minutes

    Creating a classroom quiz machine with Arduino

    Arduino TeamNovember 14th, 2017

    Quiz games, where contestants try to “buzz” in and answer questions make for fun televised game shows, but they can also be great for making learning fun. In order to avoid paying several hundred dollars for an official quiz machine, Instructables user “arpruss” decided to build one for his school using an Arduino Mega.

    The device uses a series of CAT-6 cables to connect individual arcade-style buttons to a central control unit with RJ45 connectors, allowing each contestant to buzz in with an answer. While not approved for official competition, the system can pick out button presses down to a precision of 50 microseconds or less and displaying the order on an LCD screen, reliably determining the fastest individual nearly all of the time!

    The Certamen quiz team competition from the Junior Classical League involves quiz questions on Greek/Roman subjects. Individual contestants press buzzer buttons when they have an answer. The machine keeps track of the order in which buttons were pressed, subject to the team-lockout rule that once a player on a team presses a button, the other presses from that team don’t count. The machine we built was for three teams of four players each. Additionally, so that other school groups could use the machine as a standard quiz machine, there is an option to disregard teams and just keep track of button order.

    Want to create your own? Be sure to check out the project’s full tutorial here!



    Website: LINK

  • ASPIR is a full-size, Arduino-powered humanoid robot

    ASPIR is a full-size, Arduino-powered humanoid robot

    Reading Time: 2 minutes

    ASPIR is a full-size, Arduino-powered humanoid robot

    Arduino TeamNovember 3rd, 2017

    Building robots can be difficult, and if you want to construct something humanoid, designing the mechanics alone can be a significant task. ASPIR, which stands just over four feet tall, looks like a great place to start.

    John Choi’s 3D-printed robot can move its arms, legs, and head via 33 servo motors, all controlled by an Arduino Mega, along with a servo shield.

    The documentation found here is excellent; however, it comes with a warning that this is a very advanced project, taking several months to build along with $2,500 in parts. Even if you’re not willing to make that commitment, it’s worth checking out for inspiration, perhaps parts of the ASPIR could be adapted to your own design!



    Website: LINK

  • An Arduino-controlled geodesic greenhouse and chicken coop

    An Arduino-controlled geodesic greenhouse and chicken coop

    Reading Time: 2 minutes

    An Arduino-controlled geodesic greenhouse and chicken coop

    Arduino TeamNovember 1st, 2017

    Danish industrial design student Mikkel Mikkelsen decided to do something a little different this spring, and constructed a self-sufficient geodesic greenhouse dome. His dome, which was planned using this online calculator, now stands roughly 13 feet tall, providing space for crops, along with an annex for chickens.

    While this seems like a very “back to nature” project, he didn’t forget to include modern conveniences via an automation system that uses both an Arduino Nano and a Mega. The chickens can come and go through an automatic door, while ventilation windows on the top of the dome can be opened as needed. Even plant watering is controlled automatically.

    The dome is also equipped with a GSM module that allows Mikkelsen to check on things using his phone via SMS, as well as a potentiometer for manually varying the watering levels and a speaker that is triggered upon entering the greenhouse.

    Be sure to check out Mikkelsen’s elaborate Instructables write-up for more info on the build.



    Website: LINK

  • Ivy is a massive 240-step sequencer

    Ivy is a massive 240-step sequencer

    Reading Time: 2 minutes

    Ivy is a massive 240-step sequencer

    Arduino TeamOctober 24th, 2017

    Most musical sequencers use an array of buttons to control sounds played in 16 or perhaps 32 steps. As seen here, Moscow-based artist Dmitry Morozov (aka ::vtol::) created an installation called “Ivy” wth not 16, but 240!

    The sequencer is based on an Arduino Mega along with 74HC40967 multiplexers to handle input from the 240 sliders arranged as controls for each step.  There’s also a bunch of WS2811 LEDs, which are driven by a Teensy board.

    Ivy stretches five meters in length, and several “voices” represented by dots on the 1-dimensional light array travel both right and left at different speeds simultaneously. This allows it to be programmed in ways that wouldn’t be possible with traditionally-operated musical devices.

    The project is created specially for Open Codes exhibition in ZKM center, dedicated to codes and programming in art. On one side, Ivy is a representation of an archaic method of electronic music programming for analog synthesizers. On the other side – gigantic scale and obsessive multiplication of simple primitive elements turns this project into an art installation, that is referring to the topic of graphic and physical organization of parameters in electronic music.

    You can read more about ::vtol::’s latest sound installation here, and see it in action below!



    Website: LINK

  • The Weather Followers randomizes your digital experience

    The Weather Followers randomizes your digital experience

    Reading Time: 2 minutes

    The Weather Followers randomizes your digital experience

    Arduino TeamOctober 20th, 2017

    As our lives become more and more automated, we tend to rely on computers and unseen algorithms to “protect” us from unapproved experiences. In order to illustrate this concept, and hopefully introduce serendipitous events to our digital lives, David Colombini has come up with an installation that feeds information to users via a web app, available only when it’s on display.

    Instead of implementing a carefully designed algorithm, what users experience is based on constantly evolving local weather data sensed by a physical machine equipped with an Arduino Mega, a Raspberry Pi, various sensors, and some other components.

    “The Weather Followers” is comprised of four different instruments: a wind-driven messaging app, a pollution-distorted selfie tool, a music player based on the rhythm of rain, and even a device that erases your feed depending on the sun’s intensity!

    The installation is comprised of two elements, the four weather instruments and the webapp. Users are invited to connect to the weather machine through the webapp and choosing between one of the four weather instruments: Windy encounters (when your digital social life follows the wind), Polluted Selfie (when your digital individual life follows the pollution), Drizzly Rhythms (when your digital audio life follows the rain) and finally Sun(e)rase (when your digital overwhelming life follows the sun).

    More details on the project can be found here. If you want to see another weather/digital world combination by Colombini, be sure to check out this balloon messaging system!



    Website: LINK

  • Kim Dotcom’s MEGA Exits Out Of Beta With Improved UI, New Features

    Kim Dotcom’s MEGA Exits Out Of Beta With Improved UI, New Features

    Reading Time: < 1 minute

    Earlier this year, Kim Dotcom launched MEGA into beta as the file-hosting service offers some nice perks such as giving users 50GB of storage for free among other things. It’s been ten months since the debut of MEGA, and today, the service has been taken out of beta.

     

    With its exit from beta, MEGA is rolling out a number of tweaks and improvements over the previously beta version of the website. One of the first things MEGA improved was its web UI, which looks to offer a more streamlined look and feel over the previous version of the UI.

     

    Some tweaks have also been made that focus on making the MEGA experience faster and more efficient, one of which includes local caching which only syncs changes from the last time you connected to the website. Sharing content with friends is also an easier experience as you’ll be able to upload profile avatars to help distinguish yourself on the service as well as the ability to see how many files a person is sharing with you and when they last updated their files. Now that MEGA is out of beta, the service is looking towards mobile as an Android app is currently available, while an iOS app has been submitted for review.

     

    Windows, OS X and Linux apps are also expected to be relesaed in the next month

     

    Official Source: http://www.ubergizmo.com/2013/11/kim-dotcoms-mega-exits-out-of-beta-with-improved-ui-new-features/?utm_source=mainrss

    https://mega.co.nz/