“miceuz” have set up this little experiment to gain a better understanding how does a SAR analog to digital converter work. Go to http://wemakethings.net/2013/02/25/how-does-adc-work/… for more info and Arduino code.
How does an ADC work? - [Link]
Last month we launched the first of a series of tutorials hosted on our Youtube Channel and created by Max of MaxTechTV in german language.
Today we are publishing the second video called “Pimp-up your camera with an Arduino timelapse“. The video explains how to connect an Arduino UNO with you camera and shoot pictures, for example, every 1, 5, 10 seconds to create wonderful videos of slow processes that would normally appear subtle to the human eye.
Enjoy the tutorial below and share with us the results of your experimentations!
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Letzten Monat haben wir das erste einer Reihe von Video-Tutorials auf unserem YouTube Kanal veröffentlicht. Erstellt werden die Tutorials von Max von MaxTechTV für all diejenigen von euch, die Deutsch sprechen.
Heute veröffentlichen wir das zweite Video mit dem Titel “Erstelle tolle Zeitrafferaufnahmen mit deiner Kamera & Arduino”. Das Video erklärt wie man einen Arduino UNO mit einer Kamera verbindet um mit dieser in bestimmten Abständen, wie z.B. 1, 5 oder 10 Sekunden, ein Bild aufzunehmen. So kann man beeindruckende Videos von langsamen Prozessen erstellen, die dem menschlichen Augen sonst verborgen bleiben würden.Viel Spaß mit dem Tutorial und teilt mit uns die Ergebnisse eurer Experimente!
MAKE contributor Andy has created a great tutorial to introduce you to the utility of "Charlieplexing," a method for controlling multiple LEDs without the use of multiple microcontroller pins. With charlieplexing you can turn on or off one LED at a time. To light more than one LED at a time, you can scan the LEDs by turning a sequence of them on and off really fast.
The principle behind this scanner is the typical of a line scanner. A laser beam intercepts the object to be measured and a camera, positioned at a known angle and distance shoots a series of images. With some trigonometry considerations and optic laws it is relatively easy to reconstruct the Zeta dimension, the measurement of the distance between the object and the camera.
Italian maker and sound producer Giuseppe Acito returns with his robot percussion band by combining LEGO Bionicle bots, Arduino Uno, and an iPad MIDI sequencer app.
Once every 17 years, a population of cicadas ranging from Connecticut to the Appalachian highlands of North Carolina emerges to annoy everyone within earshot. The last time east coasters saw this brood was in 1996, making 2013 yet another year of annoying insect pests. The only question is, when will we start to see this year’s cicada brood?
Radiolab, the awesome podcast and public radio show, has put together an awesome project that asks listeners to track when the cicadas in their area will emerge. Cicadas generally enter their loud and obnoxious adult stage when the ground temperature 8 inches below the surface reaches 64º F. Armed with an Arduino, thermistor, and a few wires and resistors, any Radiolab listener can upload soil temperature data to Radiolab servers where all the data will be correlated with documented cicada sightings.
After following the page’s instructions for wiring up a bunch of LEDs and a thermistor to an Arduino, just upload the most well-commented code we’ve ever seen and go outside to take soil temperature measurements. The temperature is displayed in a pseudo-binary format on nine LEDs. To decode the temperature without counting by powers of two, Radiolab has an online decoder that also allows you to upload your data and location.
This week, I interviewed the designer and maker Brendan Dawes for my podcast, Looking Sideways. Brendan's known for early interactive web projects like Psycho Studio, that allows users to remix Hitchcock's famous shower scene themselves. He's also known for his physical projects, such as the Moviepeg and Popa iPhone accessories, and devices that cross the digital/physical divide, such as the Happiness Machine, an internet-connected printer that prints random happy thoughts from people across the web. We talked about designing physical objects that embody hidden digital information.
The Diyode Codeshield is a fascinating project out of the Diyode hackerspace in Guelph, ON. It’s an Arduino shield loaded with sensors, a buzzer, a motor, LEDs, a rotary encoder, and so on, with the idea that it would help people learn Arduino programming without having to learn about electronics […]
We’ve seen a fair share of carputer builds involving a Raspberry Pi in the last few months, but even the power of a Raspi can’t compete with the awesomeness of this Arduino-powered scooterputer.
Like all awesome projects, this build is the product of a massive case of feature creep. Initially, [Kurt] only wanted a voltage monitor for his battery. With an Arduino Duemilanove, a voltage divider, and an evening of coding, [Kurt] whipped up a simple device with three LEDs to indicate the status of the batter: either low, good, or charging.
The project was complete until he ran across an awesome OLED screen. Using a touch screen display for just battery monitoring is a bit overkill, so [Kurt] made a trip over to Sparkfun and got his hands on a temperature sensor, real-time clock, accelerometer, GPS sensor, and even a cellular shield.
The resulting scooterputer is a masterpiece of in-vehicle displays: there’s a digital speedometer and GPS unit, and the cellular shield works as a tracking device and a way to download real-time maps of the scooter’s current location with itouchmap.
While the majority of the electronics are hidden under the hood of the scooter, the display of course needed to be out in the weather. To do this, [Kurt] found a nice enclosure with a rubber boot that perfectly fit the OLED display. The display is connected to the Arduino with a cat5 cable, and everything should hold up pretty well as long as [Kurt] doesn’t drive through a hurricane.
You can check out a video of the scooterputuer below.
Planet Arduino is, or at the moment is wishing to become, an aggregation of public weblogs from around the world written by people who develop, play, think on Arduino platform and his son. The opinions expressed in those weblogs and hence this aggregation are those of the original authors. Entries on this page are owned by their authors. We do not edit, endorse or vouch for the contents of individual posts. For more information about Arduino please visit www.arduino.cc
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