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OpenHAB. Entrevista con Mero Aymà, 'marketing manager' de @Cetemmsa. Lunes, 1 de diciembre del 2014 - 18.43 h Mero Aymà, responsable de márketing de Cetemmsa - ¿Que desarrolláis principalmente? - Somos un centro tecnológico que hace investigación en lo que llamaríamos 'Printed Intelligence'. Trabajamos transfiriendo el conocimiento generado en nuestros laboratorios a las empresas que buscan innovar con productos para conseguir más valor añadido.

. - Estáis especializados en electrónica impresa, flexible y plana, alternativa a la electrónica tradicional, que permite añadir nuevas funcionalidades a diferentes tipos de superficies ¿Ponme ejemplos de productos que ayudáis a fabricar? - Técnicamente, se trata de adaptar los actuales procesos de impresión como la serigrafía, la impresión inkjet o la flexografía, para que puedan imprimirse tintas conductoras e interactivas, además de las convencionales. . - Por ejemplo: emitir luz, captar energía y señales físicas o biológicas o interactuar con personas u objetos… ¿Cuáles serán los productos de nuestro futuro?

Diary of a Mad Crafter. I’m in the process of making a flower girl dress for the daughter of my cousin who’s getting married this April (can’t wait for the wedding!!!! ) and it involves […] Read Article → I did another t-shirt remodel guys! (These can be addicting!) Read Article → I don’t remember where the round cardboard came from, but as soon as I found it, I knew I’d make a clock with it. Read Article → This year, my husband and I have decided to start budgeting our money so we can actually start saving. Read Article → So this morning (into the afternoon), I made a bunch of breakfast foods to be frozen for on-the-go mornings. Read Article → Ok…so can you tell I’m a bit obsessed with my pup?? Read Article → I came up with this great idea the other day, when my husband and I laughed at our pup stealing our spots when we got up.

Read Article → OpenHAB - empowering the smart home. MicroFlight episode 5 - More Install Magnetic Actuators. Make Conductive Ink. Conductive Ink from Jordan Bunker There are so many cool projects out there that use conductive ink, but where to get the ink? Now you can DIY that part, too! Jordan Bunker of Pumping Station: One in Chicago embarked on this chemistry project and documented the UIUC process into easy-to-follow instructions.

Conductive inks have a myriad of different interesting applications. As a quick, additive construction method for electronic circuits, they are especially intriguing. As with most things worth doing, there are risks. NOTE: Please don’t do this at home unless you understand the risks and dangers and know how to avoid them. See the material list, full process, and trial and error on Jordan’s post. More:Drawing Circuits in Conductive Ink Willow Brugh Willow Brugh has been an active participant in the hacker and makerspace community since 2008, giving her purpose towards distributed systems, engaged citizenship, and mutual aid. Related. Search results for: 'iteaduino' Open Source Automation - Automation software for the home and more.

Product Problem Support, Troubleshooting Help & Repair Solutions – Fixya. TuElectronica.es | Inicio.

Electronics

Orlando's Community Lab / Hackerspace. Solar Charging Handbag. ArduPi Webcam Tankbot. This is my first robot project though I have been working with Microcontrollers and Embedded Linux for a little while. As of writing (3/1/13) this is still very much a work in progress, but most of the hardware construction has been completed. This robot will provide a remotely controlled, mobile platform for a pan/tilt webcam. It is based on the excellent Tamiya Tracked Chassis Kit with the Dual DC Motors connected to the Arduino Motor Shield R3 via the Screw Terminal. The Pan/Tilt function is provided by two Tinkerkit Servos which also allows them to be connected to the Motor Shield without taking up additional pins. The webcam is connected via USB to the Raspberry Pi and streamed to an online server using MJPG-Streamer and an Edimax wifi dongle.

Control for the Arduino can be provided via Bluetooth Bee, or XBee but the eventual goal is to connect and control the Arduino from the Raspberry Pi. Carriots | Home.

Pi

Aplique hiedra espiral. Raspberry Pi + Arduino - niltoid.niltoid. The Raspberry Pi kind of looks like an Arduino replacement as far as it’s physical appearance. At first glance, it’s specs are much more impressive for the same price point as an Arduino. However, it is by no means an “Arduino killer”. You could certainly swap out one for the other in some simple use cases. However the two devices have very different capabilities, and I find that they actually complement each other quite well when combined. Pictured here left to right: Raspberry Pi, Arduino Mega, Arduino NG, Arduino Pro Mini When you have a problem that requires exact control in real time, such as a controller for a 3D printer.

Here are some other ways the Arduino has a leg up: - Supports analog pins required for many types of sensors and actuators - Supports a larger number of digital pins - Includes PWM pins (pulse width modulation) used for some types of sensors and actuators - Some Arduino clones are cheap as fudge - Lots of parts made to integrate directly with Arduino, such as sheilds. WiringPi. Raspberry Pi Face Recognition Using OpenCV. About a year ago, I created a Wall-E robot that does object and face recognition. It uses Arduino as the controller and need to communicate with a computer that runs the face detection program to track the target. Raspberry Pi face recognition has become very popular recently. With the powerful processor on Raspberry Pi, I can connect it with the Arduino using i2c on the robot and run the object recognition program on-board.

It could become a truly independent, intelligent Wall-E robot! However, building such a robot will be a project for near future. Note: Please be careful about the indentation in the Python codes, sometimes my blog decides to mess this up randomly. I wrote an article on how to use SSH and VNC to control and monitor the Raspberry Pi, and that’s what I will be using in this project. To install OpenCV for Python, all you have to do is use apt-get like below: sudo apt-get install python-opencv You will need to download this trained face file: The idea is simple.

The Raspberry Pi - Arduino Connection. Arduino and the Raspberry Pi. I got a PI! So I got a raspberry pi. It took almost 10 weeks to arrive, but it was definitely worth the wait. For those who don’t know, the Raspberry Pi is a cheap $35 computer that includes processor, memory, and a sd card slot for the hard drive. It also has a few hardware pins that can be used to drive external devices.

Now to interface with a micro-controller… The most obvious external “thing” I wanted to hook up was the arduino. You plug the arduino into your usb port, upload some code, and suddenly you’re controlling a motor. Finally, you’ll want to interface the arduino with a computer, because it’s no fun having a microcontroller that can’t interface with the internet.

Commmand-line arduino? The raspberry pi only has 256mb of memory so you’ll probably want to upload your sketches via command-line instead of using their fancy UI. We’re going to use the serial header exposed by the GPIO pins to communicate with our arduino, so we’ll have to remove it’s use on the raspberry pi. Embedded Pi. Why do we launch Embedded Pi? It was a year ago when Raspberry Pi was launched in UK, received huge coverage worldwide. However, it has its own limitation to interact with outside environment. On the other hand Arduino™ is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software with tons of available shields to interface with outside world, but again having its own limitation of 8-Bit controller. Both, the Raspberry Pi & Arduino™ platforms, offer some very good functionality and serve different community but with their own limitations.

Raspberry Pi to Arduino shields connection bridge. Article Index Go to Index1. The Shield. 8 Digital pins.Socket for wireless modules.RX/TX pins.i2C pins (SDA, SCL).SPI pins (SCK, MISO, MOSI, CS). Can be used also as GPIO.8 channel analog to digital converter.Switch to enable external power supply.

Get the schematics here Get the Raspberry Pi to Arduino shields connection bridge here. Go to Index2. Go to Index3. There are currently two main Raspberry Pi board revisions.Raspberry Pi Revision 1.0Raspberry Pi Revision 2.0 There are slight differences between this two revisions, so a different version of the arduPi library should be used depending of which board revision are you using. In the revision 2.0 the main changes are: 2 mounting holes added2 pin “reset” header added. 3.1 Identifying your board revision Cooking hacks starter kits include the Revision 2.0 of the board. Revision 2.0 The easiest way to identify your board revision is to check if it has the 2 mounting holes . Revision 1.0 Go to Index4. 4.1 Using arduPi library: Show Code 0. 1. 2.

UDOO: Android Linux Arduino in a tiny single-board computer by UDOO. UDOO is a mini PC that could run either Android or Linux, with an Arduino-compatible board embedded. UDOO is a powerful prototyping board for software development and design, it’s easy to use and with a few steps you can start using it and creating your projects with minimum knowledge. UDOO merges different computing worlds in one; each world has its strengths and weaknesses, and all of them are useful today in education as well as Do-It-Yourself (DIY) and rapid prototyping endeavours. UDOO is an open hardware, low-cost computer equipped with an ARM i.MX6 Freescale processor for Android and Linux, alongside Arduino DUE’s ARM SAM3X, both CPU integrated on the same board!

UDOO’s size is 4.33 inch x 3.35 inch (11 cm x 8.5 cm) and it has low power consumption. More iMX6's pins and UDOO Board redesign! USB bluetooth dongle! UDOO is a very powerful board based on dual or quad core ARM cortex-A9 CPU with great performance both on Android and Linux OS, and a dedicated ARM processor for the GPIO. Learn. » Tutorial para conectar un Arduino con Raspberry PI por puerto serie. Un artículo imprescindible para conectar los dos más importantes dispositivos del mundo Open Source como son RaspberryPi y Arduino. Vamos a llevar a cabo una comunicación serie entre ambos dispositivos, veremos que archivos debemos modificar en RaspberryPi para que esto sea posible, como solventar un punto de conflicto como son los niveles de tensión y todo esto lo hacemos como siempre, seguido de varios ejemplos y un pequeño documento que podéis descargar . Niveles de tensión? El primer punto conflictivo. Para poder trabajar con ambos dispositivos debemos tener en cuenta la gran diferencia que existe entre ellos, y es que las tensiones de trabajo de raspberry y Arduino no son las mismas.

La primera trabaja a 3.3V y la segunda a 5V, es por ello que debemos tener especial cuidado, sobretodo si queremos conectar un pin de Arduino con otro de Raspberry, ya que podríamos a llegar quemar pines del GPIO de este último. Tutorial vía RaspberryPi Tutorials. Webcam Raspberry Pi | Raspberry para torpes. A la hora de usar una webcam por streaming en Raspberry Pi, tenemos varias alternativas.

Una de ellas consiste en usar la herramienta web mpeg-streamer, como pudimos ver en el post Como conectar a Raspberry Pi. Otra alternativa para conectar nuestra Raspberry con una cámara web es usando la herramienta Motion. Motion es una herramienta que nos permite tener como salida archivos jpeg, ppm, e incluso secuencias de vídeo mpeg. Además, Motion nos permite visualizar múltiples webcams a la vez así como live streaming.

El sistema operativo que tengo instalado es Raspbian usando PuTTY El primer paso será conectar nuestra webcam a un puerto USB de la Raspberry, comprobando que la reconoce con el siguiente comando: y en mi caso obtengo: Vemos que la cámara web es una Logitech C250 con ID 046:0804. Y ya está lista para instalar Motion con el siguiente comando: que nos llevará un par de minutos. Ahora, usando los cursores, modifico lo siguiente Ejecutamos Motion con: en mi caso sería. Adafruit Learning System. DIY Drones. Airfoil. Examples of airfoils in nature and within various vehicles.

Though not strictly an airfoil, the dolphin fin obeys the same principles in a different fluid medium. Introduction[edit] Streamlines around a NACA 0012 airfoil at moderate angle of attack Lift and Drag curves for a typical airfoil Supersonic airfoils are much more angular in shape and can have a very sharp leading edge, which is very sensitive to angle of attack. A supercritical airfoil has its maximum thickness close to the leading edge to have a lot of length to slowly shock the supersonic flow back to subsonic speeds.

Generally such transonic airfoils and also the supersonic airfoils have a low camber to reduce drag divergence. A laminar flow wing has a maximum thickness in the middle camber line. Schemes have been devised to define airfoils — an example is the NACA system. Airfoil terminology[edit] Airfoil nomenclature The various terms related to airfoils are defined below:[6] A key characteristic of an airfoil is its chord. . Engranaje. La principal ventaja que tienen las transmisiones por engranaje respecto de la transmisión por poleas es que no patinan como las poleas, con lo que se obtiene exactitud en la relación de transmisión. Historia[editar] Molde chino para fabricar engranajes de bronce (siglos II a. C. a III d. C.).

Mecanismo de Anticitera. El mecanismo de engranajes más antiguo de cuyos restos disponemos es el mecanismo de Anticitera.[2] Se trata de una calculadora astronómica datada entre el 150 y el 100 a. En China también se han conservado ejemplos muy antiguos de máquinas con engranajes. No está claro cómo se transmitió la tecnología de los engranajes en los siglos siguientes. Engranaje helicoidal de Leonardo. Leonardo da Vinci, muerto en Francia en 1519, dejó numerosos dibujos y esquemas de algunos de los mecanismos utilizados hoy diariamente, incluido varios tipos de engranajes de tipo helicoidal. Transmisión antigua. Antigua grúa accionada con engranajes ubicada en el puerto de Sevilla En 1905, M. Módulo: How to Build a Robot Tutorial - Society of Robots. Learning Resources. How to Build a Robot Tutorial - Society of Robots. Introduction to Gears No good robot can ever be built without gears. As such, a good understanding of how gears affect parameters such as torque and velocity are very important.

In this tutorial I will first talk about the basics of gears, how to use them properly along with simple equations, and then I will go into specific types of gears. Mechanical Advantage, Torque vs. Rotational Velocity Gears work on the principle of mechanical advantage. This means that by using different gear diameters, you can exchange between rotational (or translation) velocity and torque. As with all motors, by looking at the motor datasheet you can determine the output velocity and torque of your motor.

With gears, you will exchange the high velocity with a better torque. Torque_Old * Velocity_Old = Torque_New * Velocity_New Torque_Old and Velocity_Old can be found simply by looking up the datasheet of your motor. 3 lb-in * 2000rps = Torque_New * 300rps 3 lb-in * 2000rps = 5 lb-in * Velocity_New.

Mechanics

Automaton. Maxwell's wheel pendulum. Freetz. FRITZ!Box | AVM - Home Network with FRITZ! - DSL, LTE, Cable, WLAN, DECT and Powerline. RHex robot uses leaping ability to do 'Parkour' (video) Raspberry Pi - Order Pad. Linux Embedded Devices Comparison: Yun, BeagleBoard, Rascal, Raspi, Cubieboard & pcDuino. Index_es. How-To Geek - For Geeks, By Geeks. How to do anything. No Puedo Creer » Gadgets, noticias, inventos y regalos para frikis y geeks. ¿Y si nos fabricásemos el jabón en casa? Demystifying PID Control with a look at the new Arduino PID library. OpenWrt.

XBee Buying Guide. Wireless Sensor Networks Research Group. Pickles - Pickles. Free Educational Software. Product - Hackberry A10 Developer Board. Nace Gooseberry, el primer competidor directo de Raspberry Pi | www.geektopia.es. About.

DesignSpark - Home. Steve On Java - JavaFX » JavaFX on Raspberry Pi – 3 Easy Steps. JDK 8 (with JavaFX) Developer Preview for ARM — Java.net. Notifications in the cloud. Con la Raspberry Pi el límite lo pones tú: aprende qué puedes hacer (II) Register interest for your @Raspberry_Pi. Prototipo Domo .::. Ingeniería del Software - Puigros. APC. ODROID | Hardkernel. Radios caseras de Dave. How to Make a Crystal Radio in 10 Minutes. Radios de Galena. Main Page/es - Qi-Hardware. OpenPICUS. FreeNAS 8 | Storage For Open Source. Qué es Obsoletos. Brief. Raspberry Pi | An ARM GNU/Linux box for $25. Take a byte! Podcast - JavaHispano Podcast - 132 - Introducción a Arduino (Entrevista a BricoGeek) Willow Garage.

Decoration.

Kinetics

Tricks. Make A 3D Paper City! Arduino.