Doh uses RFID and Arduino to help you remember your wallet, continues search for the 'Any Key' originally appeared on Engadget on Mon, 21 Nov 2011 04:11:00 EST. Please see our terms for use of feeds.
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Continue reading 3D-printed tail hooks up with Arduino, wags the dog (video)
3D-printed tail hooks up with Arduino, wags the dog (video) originally appeared on Engadget on Sat, 19 Nov 2011 20:29:00 EST. Please see our terms for use of feeds.
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iZac doesn't want to hear your sob stories. No, this Arduino-crafted bartender just wants to make cocktails, ordered through a tablet-based drinks menu. The bar patron can then place a glass on the digital scales, and iZac will measure out in the prescribed quantities necessary for the meatsack's choice of poison. The liquids are handled by aquarium pumps and laser-cut pinch valves, with accuracy to within one gram (0.035 ounces). Sadly, the bar bot's repertoire is limited by six bottles, arranged on two turntables. Risky drinkers can plump for the 'I'm Feeling Lucky' option, which creates a randomized drink of three (possibly identical) liquids. See how it all comes together in a loud, appropriately shady-looking bar after the break.
Continue reading Android-powered bar bot makes a mean Rob(ot) Roy (video)
Android-powered bar bot makes a mean Rob(ot) Roy (video) originally appeared on Engadget on Fri, 18 Nov 2011 18:18:00 EST. Please see our terms for use of feeds.
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Continue reading My Keepon: Kinect-ing hackers and goths through the art of dance (video)
My Keepon: Kinect-ing hackers and goths through the art of dance (video) originally appeared on Engadget on Fri, 18 Nov 2011 13:12:00 EST. Please see our terms for use of feeds.
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With this POV light painter, you can paint the town red or any other color that suits your fancy. The LightScythe is a 2-meter long POV tube made up of multi-color LED strips. POV stands for Persistence of Vision which describes how our eyes see motion blur when an object is moving quickly. In this case, it enables us to see a message written with light.
An image is loaded onto a laptop which converts it to serial data, then sends it to an Arduino which controls the lightbar. A camera is set for 10 to 15 seconds of exposure, during which time the user walks across the frame, painting the image to be caught by the camera. Check out the full build instructions.
Continue reading Add lasers to a tennis ball, drive your dog crazy (video)
Add lasers to a tennis ball, drive your dog crazy (video) originally appeared on Engadget on Mon, 14 Nov 2011 14:34:00 EST. Please see our terms for use of feeds.
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As though an electric mountain board isn’t cool enough for zipping around, this industrious inventor just added wireless control. We previously featured Andres Guzman’s mountain board which, at the time, was controlled via a PlayStation Controller. This time, he uses a glove laced with sensors & switches to control the device
A power supply and an Arduino are mounted to the glove, as well as a transceiver serving as the communication link between the board and the glove. Speed control is provided by a flex sensor and a dead-man switch stops the board if Guzman takes a fall. An awesome build to add to our collection of robotics & Arduino projects!
Wondering what you get when you mix an Arduino kit with some food coloring and plenty of water? Well, the Digidrench team came up with the concept of developing a media controller that mimics the flow of water in and out of three separate containers. The pay-off? Seeing three of the team get coated in a brightly colored mess. An Arduino kit is connected to a sensor that gauges the amount of water in the tanks and transmits the watery action to a corresponding video slice. Take the water out, and the deluge reverses. Pour faster, and the test subjects get poured on faster. Pour slowly and, well, you get it. You can laugh at their cheerfully colored misery right after the break.
Continue reading Digidrench whets our appetite for water-based Arduino adventures (video)
Digidrench whets our appetite for water-based Arduino adventures (video) originally appeared on Engadget on Thu, 10 Nov 2011 15:18:00 EST. Please see our terms for use of feeds.
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I love IKEA and her low cost products.
Last week I found this STRÅLA lamp.
The cost is $4.99, so I bought it.
Lighting the lamp I saw that it ‘s very pretty but also … too soft…
So I thought to modify the LED and add a RGB led.
With simple modify you can obtain a dinamic lamp.
I used an Arduino to do a fast work, but of course it isn’t necessary.
You can use a small microcontroller like a PIC12F675, or a ATTiny.
And this it the result:
How to
Before all, you have to buy a STRÅLA
Open the package
And disassemble the original LED
As you can see the LED shape isn’t normal, but there is a cone in the center to better spread the light.
So I modify the RGB led to obtain the same effects and I also smoothed the surface.
Connect the wire to the led and reassemble all.
To connect the RGB led I used a strip wire and some pin.
And now you can connect this pin to PWM ports of Arduino.
The black, blue and white wire are the RGB pin of the LED.
The red one is the Anode.
The sketch
/* IKEA Strala mods
created 2011
by Boris Landoni
This example code is in the public domain.
http://www.open-electronics.org
http://www.futurashop.it
http://blog.elettronicain.it/
*/
#include <EEPROM.h>
int red = 9; // RED LED connected to PWM pin 3
int green = 10; // GREEN LED connected to PWM pin 5
int blue = 11; // BLUE LED connected to PWM pin 6
int r=50; int g=100; int b=150;
int rup; int gup; int bup;
int fader=1;
int inc=10;
void setup()
{
// start the Ethernet connection and the server:
Serial.begin(9600);
Serial.println("Serial READY");
r = EEPROM.read(1);
g = EEPROM.read(2);
b = EEPROM.read(3);
inc = EEPROM.read(4);
fader = EEPROM.read(5);
rgb(r, g, b);
}
void loop() {
if (fader==1){
funcfader();
}
}
void funcfader(){
Serial.println("fader");
if (rup==1){r+=1;}
else{r-=1;}
if (r>=255){rup=0;}
if (r<=0){rup=1;}
if (gup==1){g+=1;}
else{g-=1;}
if (g>=255){gup=0;}
if (g<=0){gup=1;}
if (bup==1){b+=1;}
else{b-=1;}
if (b>=255){bup=0;}
if (b<=0){bup=1;}
delay(inc*2);
rgb(r, g, b);
}
void rgb(int r, int g, int b)
{
Serial.print("RGB: ");
Serial.print(r);
Serial.print(" ");
Serial.print(g);
Serial.print(" ");
Serial.print(b);
if (r>255) r=255;
if (g>255) g=255;
if (b>255) b=255;
if (r<0) r=0;
if (g<0) g=0;
if (b<0) b=0;
analogWrite(red, r);
analogWrite(green, g);
analogWrite(blue, b);
}
Good modding
An excellent article in IEEE Spectrum magazine gives a rundown of the origin of the Arduino board, outlining the motivations behind the open source design and the increasing impact it has on creative communities all over the world. It's a good read for answering the question, "What is Arduino?"