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1950-2010 IR Remote Control - IR Hardware

With the advent of technologies based on radio frequency, infrared control was a bit out of fashion. Projects often carry embedded radio frequency transmitters and receivers custom or bluetooth modules , often expensive and sometimes these modules are difficult to achieve. Clearly the main limitation of a system based on infrared remote control is that the participants of the media should contact "visual". Many times when a prototype that is not a limitation.

The advantages, several, simple to implement, the transmitter may be a remote control standard components are very cheap.

For example, the infrared receiver line Vishay (one of the most used brands) provide recipients with low-pass filters that minimize the influence of external interference. In most IR remote control standards (Phillips , Sony, etc) use a modulation type ASK, where the active state is actually a series of pulses that the receiver presented as a single pulse value active logic (see this link for more details here .

My suggestion is not to dismiss the idea of \u200b\u200bthe idea to control infrared may seem outmoded .

Some interesting links

To arduino, this sketch graph allows the train of pulses coming from a remote control, ie it is rather a signal analyzer and from then on continue working.

Another project complete enough that serves as a receptor for commands from a remote control standard RC Phillips 5. The project this here and you can download the sketch. Finally

draft several infrared LED driver here.

Occurs to me it might be interesting to extend the idea of \u200b\u200bintelligent LEDs, for example with infrared receivers.

Components Of A Simple Electric Motor

Open - Open Hardware

cnologia manufacturing model is one of the most interesting things in the realization of prototypes. However, adding to these objects the ability to network and interact open a new world of possibilities.
The editor of MAKE: Magazine defined some of the most important aspects of "Hardware Hacking" or programmatically modify hardware and hardware using opensource (open and free to use).

Open Source Hardware (adolescence)

View SlideShare presentation or Upload your own. (Tags: open source )

VIA: REPLICATOR

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SMD Soldering

SMD components for its acronym in English from components of surface mount are ideal for low profile, ie are small. Until not long ago most of the prototypes were made with PCB PCB holes. In recent years this change and the trend is to use SMD for prototypes (this was almost exclusively reserved for the industry.)

hole component

One of the advantages of using SMD components is not necessary to manufacture a printed circuit board with holes. But when soldering components technique is a little more complicated than in the components of holes. People
CoriousInventors conducted a video tutorial on how to solder SMD components.

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DALI and DMX-512 Interactive Bureau

In its initials in English Digital Addressable Lighting Interface (DALI) is a protocol for DALI Lighting Control By ballasts can be controlled and dimmers and other devices. DALI was proposed as a successor to the lighting control system known as 1-10v (that is still in use) and his time as a competitor of a system called DSI.
One of the advantages of DALI is that it is an open standard and has no owner, ie anyone can develop their own teams DALI. Is it a replacement DALI DMX-512? No, there are some important differences that suggest that it is not a replacement.
If you want a quick response in an installation of lights (eg the case of the jacket with Capri ) DALI can not get the dynamics of DMX-512. In the case of a facility with 500 DMX-512 devices each device would receive updating their status every 23ms. In the case of DALI with a communication that operates at 1200 bps to update an installation of 63 devices arrive every 1s (16ms x device.) However, one of the advantages to be found in DALI is that their slow speed of communication is easily implemented with any small microprocessor.
If we refer to finished products, OSRAM development a number of very interesting products DALI, contralateral one allows up to 64 different RGB channels in a wide power range. All this via PC, remote controls, buttons, and dimmers.
In conclusion, if we talk about interactive installations, for DMX-512 now remains the most convenient. OSRAM DALI

Color System




DALI Standard: NEMA 243-2004

Part 1 (Draft) 243-2004 NEMA
Part 2 (Draft)

Air Force Condor Air Rifle

Design studio-build development Becausewecan an interactive table. This table consists of 640 LEDs underneath the glass. The interactivity is based on 32 infrared proximity sensors that track (with LEDs) the movement of an object moving on the surface.





Link: becausewecan

Black Vest With Black Shirt?

Radiohead "Nude" remix


Big Ideas (do not get any) from James Houston on Vimeo .

As part of a remix contest for the song "Nude" from Radiohead's latest album, James Huston, made this remix using old-school hardware.

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Juliana Rosales - Nature_data


Uruguayan artist Juliana Rosales has a Oboro space to develop their project nature_data, botanical facility where they examined the behavior of native plants in an urban environment. Through a system of sensors (Arduino + Max / MSP + PureData), the system generates data that provide the tiniest modulation of growth or regression of the plants. This information is retrieved by the artist, which results in chart form, images, sounds, videos, allowing lead to see and hear the movements of nature from a different angle. Juliana
to discover a land where nature exploration with artificial skirt, allowing the same way to stress the fragility of nature and experience its ability to withstand shock.
Here, Rosales draws our attention to the subtleties of behavior other plants typical of the region, such as: the wintergreen ( thé des bois), three sheets Creek ( ariséme ) of Mitella, Dogwood ( cornouiller ) and colonies fern, also experimenting with designs and rhythms that are hidden there.
[translation from French. Marcela Zena]

link: http://www.oboro.net/pdf/press/0708/exhibi_event/comm_rosales_fr.pdf

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Arduino PWM Technology

In some previous articles I wrote about PWM modulation. This is used between other things to control the speed of DC motors (DC) and adjust the brightness on the LEDs.
Arduino (Decimilia and derivatives) uses Atmel ATMEGA168 microcontroller, this Microcontroller has 6 PWM outputs (pins 3,5,6,9,10 and 11). AnalogWrite function (pin, value) to control each of the PWM outputs. The frequency of the PWM is fixed 490Hz control and what that function is the activity cycle of the PWM .
A value value = 0v produce a printout 0v, while a value value = 255 produce a constant 5v output. Values \u200b\u200bproduce intermediate values \u200b\u200b media output voltage proportional Vmediosalida = (value/255) * 5V.
For example, to control an LED, a frequency of 100Hz reaches for the human vision system does not perceive the flicker of the same, so the 490Hz using Arduino are more than sufficient.

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Sketches Magnetic Field

In the process of developing new interaction technologies, I came across an interesting concept when it comes to test an idea. The question is simple and agile prototype that show how the product should work without putting much focus on how the product will actually work. Thinking about the user experience, interaction, technological leaving details for later. To explore ideas without considering the technological limitations, then you must create technologies to solve these limitations.
How this is understood when developing? What is meant by prototypes in this context?
One example that occurred to me is using Arduino or CUI, to name a few. Suppose we want to try some type of interaction using an accelerometer (think of an object that somehow reacts to changes in acceleration). Using Arduino can test these ideas by focusing on the algorithms that control the interaction, as communication and sensor reading, are resolved.
If we think of a classic prototype from scratch, we should be concerned with choosing a microcontroller, build a board, I2C routines write (or use some), and finally implement the reading of the accelerometer .
This is a trivial example, told simply and very schematic, but I think it serves to illustrate the idea.
is clear that when converting this idea into a product, you can not think of using Arduino as a platform, given the technological and economic limitations. It is at this point where we must look at developing the necessary technology. However, the interaction, the main motivation of our project, and was tested using the prototype (Sketch).
should not take this as a general definition, ie it may happen that a platform as technologically Arduino insufficient for the type of interaction we want to develop (such as for audio processing). This is where the concept should be extended to generate a new prototype scale, using large building blocks.
Links:
ThingM

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Here is the video of a project that involved with Capri. Lasser Jacket is a jacket DMX512, fully controllable from MIDI sequencer.

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Gainer Projectors

Think of a LED with some level of interaction was restricted to the LEDs flickering (blinking LEDs) that turn on and off at regular intervals. With the advent of the microcontroller 6 and 8 feet at low prices, wide range of supply voltage and internal oscillator, the ability to integrate a microcontroller and an LED has become a real possibility. The goal is an object / device independent and interactive, consisting of an LED and the microcontroller.
One of the first prototype was Programmable LED developed by Alex Weber and allows, through a photocell (light sensor visible) program a sequence of on / off LED. This sequence will be recorded and reproduced by the microcontroller. Another
latest prototype is the intelligent LED developed by Tod E. Kurt , unlike those developed by Alex Weber, these Smart LEDs use a RGB LED (3 colors). Using techniques of light control Tod think an LED, as an autonomous unit, capable of detecting environmental stimuli and react by changing color. For this project used an Atmel microcontroller (the same family of microcontrollers using Arduino ). The ATtiny13 is a small 8-pin microcontroller with 4.8-MHz internal oscillator, cheap and easy to program. If you are a programmer Arduino, you can schedule it.



RGB LEDs normally have a very narrow emission angle, making them ideal for lighting in a timely manner, but of little use to illuminate the environment. To achieve a more uniform light is convenient to use a diffuser of light, something so simple with a small cylinder of translucent plastic.



Lindos objects, easy to make and cheap. The links below leave the constructive procedure.

Links:
LED Programmable LED Smart

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Designing Interacions

Displaying some book reviews, this appears to rave reviews. Here is the link to the author's website where you can download the sixth chapter in PDF and see some interviews included in the book.

Chapter six interviews

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todbot utulizado material published in a series of lectures given in November 2007 by Machine Project and designed by Tod E. Kurt. An introduction to the use of microcontrollers using the platform Arduino. The course focuses on showing how real-world sensing variables and get moving.
was introduced to students in the basics of wiring a microcontroller with analog sensors, switches, LEDs and motors.
Course participants should have no prior knowledge of microcontrollers. Classes were
face. The course material is freely available. Class

• at Machine Project description

Class Notes

• bionic_arduino_class1.pdf (7.7MB PDF)
• bionic_arduino_class2.pdf (9.2MB PDF)
• bionic_arduino_class3.pdf (4.9MB PDF)
• bionic_arduino_class4.pdf (6.6MB PDF)

Arduino examples used in class

• Blink - Blink of an LED
• Fading - Control of brightness of a LED
• FadeOrBlink - A button to change from a flashing intensity

• CandleLight - random, simulating a candle
  
• PotDimmer - Using a potentiometer for brightness control
  
• RGBMoodLight - Algorithmic Control RGB LED
  
• RGBPotMixer - Control of an RGB LED with potentiometer
  
• SerialHelloWorld - Hello world, use the serial port
  
• SerialReadBasic - How to read the serial port values \u200b\u200b
  
• SerialReadBlink - Change the frequency of flashing via serial port
  
• SerialRGBLED - Control the color of an LED for serial
  
• SoundSerial - Use the serial port to control a piezoelectric
• PlayMelody - Playing a melody predefined
  Theremin
• - Use a photocell and a piezoelectric a theremin
  

• SerialMotorSpeed \u200b\u200b - Speed \u200b\u200bcontrol of a serial motor
  
• PiezoKnock - with a piezoelectric sensor
  
• PiezoMotorPulse - contact sensor with a piezoelectric to control a motor
  
• PotSend - Send binary data from a potentiometer (for Processing)

• ServoSimple - Move a servo back and forth
  
• ServoSerialSimple - a servo control via serial port
  
• ServoSerialBetter - A better way to biological control of a servo
  
• NunchuckPrint - Print the data from the sensors of the Wii Nunchuck
• NunchuckServo - Use Nunchuck to control a servo
  

• bionicarduino-sketches.zip - All examples in a zip
  

Processing Examples used in class

• ArduinoReadCircle - Control the size of the circles with a potentiometer
  
• ArduinoBounce - Control the size of areas with a potentiometer
  
• ArduinoSounds - Shot of sounds from the touch sensor
  
• bionic-processing-sketches.zip - All the examples in a zip
  

Links:
todbot - Bionic Arduino

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This is a simple project. You do not need prior knowledge of electrónica.La idea is to start with prototypes made easily, so you can familiarize yourself with the techniques, and then, stir in more sophisticated items such projects become more interactive. This article is based on the instructions of Leah Buechley, a researcher at the University of Colorado (USA).



Following the instructions described here: learn to make your own "electronic garment, using LEDs and other electronic components that will be sewn into the fabric with thread. In this example, we use a shirt like the one pictured.

• A fabric or garment
• thread (This is hard to find, but below you will find links to places where they sell this thread)
  
• Needle Lights: 2 LEDs 2 AA
• 
  
• A battery case for two AA batteries
• clamp pliers tips
• network fabric (optional button)
• A plush corduroy cut fine (optional cloth button)
• sewing machine (optional)
• Multimeter or tester (optional)
• electronics soldering and tin (optional)
  

Electronics Shops: In Buenos Aires - Argentina, there are several places where you can get the items to make your "electronic piece." For example, on Calle Paraná between 100 and 300, there are several houses electronics. Among the businesses that have a variety of stock, Paraná are 180 or Paraná 220. All the elements used are basic and can be obtained in any of these houses electronics. The only element difficult to acquire is the thread that even where it has to be ordered abroad. At the end of this article, leave scored some links where you can order the wire.


Left: Leds
Right: Porta batteries

E LEMENTS

several circuits with LEDs
If this is the first time you facing an electronic circuit, seríaprovechoso understand some basic operation of this before starting the project. As an introduction to electricity, you can use a basic book electronics or electricity.
I leave you some links to see the basic concepts of electricity: Direct Current

English. Circuits in general:
Electronics Club - Electricity and the Electron Doctronics - Circuits
Doctronics - Circuits

LEDs (light emitting diodes) are a special type of lamparita.Un LED lights up when electricity flows through it in the right direction. Typically, LEDs have two metal legs: on the one hand, the positive leg (+), called "anode" and the other, the leg negative (-), called "cathode." In the above figure, you can see the LEDs in one leg is longer than the other. The longest leg corresponds to the anode. I give you some links to understand how the LEDs: LED Diode

Explain: English
LEDs. LEDs:
Electronics Club - Light Emitting Diodes (LEDs)

Design
1. Choose a garment or fabric.
2. Circuit designed to display from the garment. Choose the number of LEDs you want to use, and each position or their location on the garment. Choose a location for the power supply.
In this example we will use 4 LEDs. The batteries will be placed near the edge of the garment, in such a way that they can carry the batteries in your pocket. Remember that each LED must reach two seams of wire.

In the next article in this series see how to make buttons on and off the LEDs. For this reason, please leave the site design for position buttons.


Left: Design
garment Right : Wiring diagram

Note: You must plan the circuit so that the legs are connected to the LEDs directly to the batteries. Because using the AA batteries as a power source, you can choose a configuration of LEDs in series (not reached the required voltage), and one should choose a setting of 4 LEDs in parallel (as shown above).

3. Transfer the design onto the fabric using a pencil to areas where they will tela.Delimita LEDs, batteries and buttons (optional to complete in the next article.)

Armed
1. Sew the circuit according to the design drawing. Can be sewn by hand or sewing machine. If you're using a sewing machine, place the coil of wire as you would any sewing thread. Follow the lines drawn, leaving enough room to place the LEDs and other components.

2. LED is now preparing to sew. Using needle nose pliers to create two loops sewn LED, rolling a metal part of the leg on itself (is best understood by seeing the photo.) Leave a mark visible to know which leg (+) of LED. Try not to exert force on the link between the metal leg and the body of the LED to avoid damaging the internal connection.

screwing the leg of the LED for the slot

3. It is time to mount the LEDs. Place the LED so as to leave in the back of the fabric legs. You can pierce the fabric slightly by placing the LED from behind to pass off as the body of the LED on the other side. Another way to mount it can be without having previously twisted legs. Place the LED on the front of the fabric, passing only the legs for the reverse side of fabric and then make the eye with the paw.
must be taken into account properly align the legs in relation to the stitching thread, respecting the (+) and (-).


Left: Turning the LED through the fabric
Right: Method of section 3 to pass the legs and then the eye

With a needle and thread are going to attach the grommet done with the leg of the LED and the previous seam. The purpose of this is to achieve a good electrical contact between the seam and the leg of LED to be sewn carefully that achieving a good surface contact between the elements connected.

LED Sewing

seams (knots) of the legs of the LED

Note: The electricity must flow through the LED. If it had been a piece of thread between the leg (+) and (-) of the LED is not lit.

After reaching the seam, secure and cover the thread (of the previous connection) using fabric glue. This is an important step to prevent future descosa.

Pasting the seam (node) between the LED and
thread

4. We will now prepare the battery case. Remove the plastic wire insulation of battery case, two to three centimeters. Once the copper is visible, creating a tightening eyelet cable repeatedly. These loops are the ones who sew the fabric and must bear the weight of the batteries. It should be as firmly as possible.


Left: Stripping the wires
Right: The battery case connector with twisted wires

5. It's time the cable tie holder leaving piles ready grommets. Remember that the red wire connector battery case should go to the seams (+) and negative at the seams (-). Remember to make a good seam to ensure good electrical contact.

6. Add the finishing details. Probably need a patch in the place where the legs of the LEDs so they do not bother to wear the garment.

Shopping

protection for the garment does not hurt

7. It's time to try!. Put the batteries in the battery case. The LEDs should light.
If the LEDs do not light, review this list of possible problems.

• LEDs are sewn so that the (+) and (-) were reversed. Try turning the LEDs.
• Check that there is no short circuit. Check seams with thread to make sure that there is between the (+) and (-) without passing through an LED.
• Check any thread sewing the cut
• Try new batteries

The garment can be washed with mild detergent and air dried.
In the next post I'll put the instructions to build a web button.

Links:
Source: do it yourself - make you own electronic sewing kit
thread: Lame Lifesaver
Lead Wire, tape: Fine Silver Products
driver Velcro, fabric and paint : Less EMF

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Arduino welcomes a new family of devices: Arduino LilyPad. Garments and textile products running Arduino.

The design was done by Leah Buechley and SparkFun Electronics for use in projects of clothing and textiles (e-textile). LilyPad family has a number of accessories: power supply, sensors and LEDs, among others.

The main feature is LilyPad modules can be connected by wire conductor (yes, that thread can be used for sewing) possible to create a lightweight garment and feasible to be used. Platelets are violets, and distribution of components deforms very convenient to carry the light.

The LyliPad family idea is to use the Arduino platform adapting their characteristics (especially physical) to the needs of the performance of garments with technology.

Links:

LilyPad Arduino and Arduino 0010

Getting started with the LilyPad Arduino

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the other day I found this reference guide sensors Princeton University. This is an introduction to systems acquisition. These allow you to connect the physical world to the digital world. Things may be a bit tricky unless you know some electronics, I think anyway can be useful.
Input / Data Acquisition System Design for Human Computer Interfacing

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Responsive Environments: architecture, art and design (V & A Contemporaries)

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Wii Remote, is the super driver of the Nintendo Wii console. iPhone is the super Apple phone. Both devices have an acceleration sensor or three-axis three-axis accelerometer. This sensor is within the category of MEMS sensors (short for Micro-Electro-Mechanical System), which are those electronic sensors that are internally a mechanical device to function, in this case a mass (if, f = ma).
I was watching The accelerometer is the LIS302 of STMElectronics (other com the ADXL330). Some of the most interesting characteristics of this accelerometer are: low power, I2C/SPI interface, measuring range ± 2g / ± 8g and detection of click and double click.
communication with the accelerometer is I2C/SPI as preferred, this is true for the configuration as to read the acceleration values.
One of the things that caught my attention is the detection function click and double click. As I read when the sensor is subjected to a stimulus (mating, in one direction) will generate a signal indicating a click (stop). A more advanced variant of the same function can generate an interrupt when it detects a sequence of two consecutive stimuli (double click). The intensity of the stimulus and the time between the first and second stimulus is programmable. The advantage of this feature is that it simplifies programming the microcontroller / processor. The standard interface for communicating with the sensor is I2C/SPI, but using this feature, read the click or double click an entry simply involves connecting the micro to the sensor output INT.
How to use this sensor?, You can make an ad-hoc panel with a standard micro or use some of the platforms for prototyping, or CUI Arduino USB. Wiring (Arduino programming language) includes routines to handle I2C devices which greatly simplifies the issue.

Links:
STMElectronics
Wiring: routines to handle I2C devices