DIY vending machine with Arduino

Arduino Team November 17, 2017

Have you ever wanted a vending machine for snacks but didn’t know where to start? With an Arduino Mega, some motors, and an infrared sensor to detect coins, Dejan Nedelkovski decided to build his own using only hand tools.

The DIY vending machine’s structure is made out of MDF, and uses wires bent into helical shapes to twist items out of four storage spaces with continuous rotation servos. While they could just drop to the bottom, Nedelkovski added a little extra flair and constructed an elevator system powered by stepper motors to gently lower the chosen treat to the exit opening. Read the rest of this entry »

An excellent two-sided UV exposure box

Arduino Team November 16, 2017

If you want to make your own custom PCBs at home, one method is to paint a circuit board blank with photosensitive material, then expose the portion you don’t want to UV light using a printed transparency. After a process of etching and stripping, the correct traces are generated.

As seen here, in order to help with the UV process, GiorgiQ decided to create his own two-sided exposure box. It uses arrays of LEDs to produce the correct light, and an Arduino Nano for control. Read the rest of this entry »

Creating a classroom quiz machine with Arduino

Arduino Team November 14, 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! Read the rest of this entry »

Star Wars fan builds an Arduino-powered R4-P17 replica

Arduino Team November 13, 2017

Alejandro Clavijo, together with his father Jerónimo, spent two years building the first official fan-made model of the R4-P17 Star Wars droid. For those not familiar with this family of droids, R4-P17 was the robot companion to the young Obi-Wan Kenobi.

The replica is made of aluminum and wood, and runs on four Arduino boards. Impressively, the project has also been approved by Lucasfilm, the studio behind the saga, allowing Clavijo to bring it to official Star Wars events all over the world. Read the rest of this entry »

Desafío STEM + Arduino Podcast [Español]

Arduino Team November 13, 2017

Con el fin de apoyar a los nuevos participantes del Desafío STEM 2017, Arduino y Telefónica se han unido para crear una serie de tres podcast, abiertos al público en general, conducidos por David Cuartielles.

Desafío STEM es un concurso interescolar que fomenta el desarrollo de competencias tecnológicas, creado por Telefónica Educación Digital para impulsar la implantación de nuevas formas de aprender a través de dinámicas motivadoras y fomentar las vocaciones STEM.

Durante los podcast se abordarán los siguientes temas:

  • Primer podcast: 15 de Noviembre
    Cómo crear proyectos creativos usando tecnología digital.
  • Segundo podcast: 22 de Noviembre
    Identificación de problemas técnicos en la creación de proyectos.
  • Tercer podcast: 5 de Diciembre
    Nuevos usos de tecnología en el aula.

La duración de los podcast será de una hora comenzando a las 19: 00 GMT+1. Podrán seguir la transmisión del podcast en: http://verkstad.cc/urler/desafiostem

David responderá durante el podcast preguntas de la audiencia que se envíen antes de los podcast. Para enviar las preguntas, seguir el link que se presenta a continuación y llenar el formulario: http://verkstad.cc/urler/desafio-preguntas. También se podrá participar en twitter con el hashtag #desafiostempreguntas. Read the rest of this entry »

Mini Strandbeest goes electric with Arduino

Arduino Team November 9, 2017

Strandbeests, as originally conceived, are gigantic PVC creatures that walk across the sand under wind power. While building one is certainly an enormous undertaking, smaller models are available that let you experience this strange kinetic motion in a more approachable size. These are also normally propelled by moving air, but maker “ArduinoDeXXX” decided to take things further with a pair of DC motors and an Arduino Nano.

The project came together over five distinct iterations, starting off with the normal wind-driven version, then adding uncontrolled motors. After that, the Arduino was included for automation, and this was upgraded with an IR remote. Finally, ArduinoDeXXX integrated simple gesture sensing using an array of IR LEDs. Read the rest of this entry »

Maker Faire Rome 2017: Call for Volunteers

Arduino Team November 7, 2017

UPDATE: Thank you for all those who applied. Our call for volunteers is now closed. See you in Rome!

Planning on attending Maker Faire Rome next month? We’re currently seeking volunteers to join our team during the event—staffing tables and displays, leading one-on-one workshops and demos, and providing technical assistance when necessary.

If you volunteer with us for one shift, you won’t leave empty-handed! You’ll receive a day pass; spend two days with us, and you’ll have a ticket for the entire weekend to explore the show. Water and snacks will be provided, of course, along with some Arduino goodies.

Interested in helping out at our booth? Please fill out this questionnaire, and we’ll get back to you soon!

If you are underage, we will need your parents’ permission.

Read the rest of this entry »

Simple Computer Gesture Control with Arduino and Python

Arduino Team November 6, 2017

As outlined in this Circuit Digest write-up, with the right hardware, you can now control your computer using hand gestures. While interesting, this kind of technology can be a little expensive. But if you’d like to augment your notebook or laptop via simple gesture capabilities without breaking the bank, B. Aswinth Raj has your answer in the form of an Arduino Uno and two ultrasonic sensors.

His system places the two sensors at the top of a screen, which are read by the Uno. This data is then passed on to a Python program running on the host computer that allows for actions such as play/pause, fast-forward, and volume control while watching videos. Read the rest of this entry »

Use all your old-school game controllers with the turn of a dial

Arduino Team November 6, 2017

IT professional (and Arduino cap fan) John Milner had a minor problem. While his retro gaming setup could emulate a wide variety of systems and games, it was still missing the tactile feedback of the original controllers. Rather than “submit” to playing with only an Xbox 360 controller, he developed the Multijoy Retro Gaming System that can change gamepads with the turn of a knob using an Arduino Micro.

The resulting system lets him not only choose the original controller for each game, but if you want to mix things up and see how Super Mario Bros. would feel on a PlayStation 1, or even a Genesis controller, you can do that too! It also features shortcut buttons on the new console. Read the rest of this entry »

Linux support comes to Arduino Create

Arduino Team November 3, 2017

We’re excited to announce a new update to the Arduino Create web platform, which will enable fast and easy development and deployment of IoT applications with integrated cloud services on Linux-based devices.

What this means is that users are now able to program their Linux devices as if they were regular Arduinos. Multiple Arduino programs can run simultaneously on a Linux devices and programs can communicate with each other leveraging the capabilities of the new open source Arduino Connector Read the rest of this entry »