Archive for October 2011

Arduino Enclosure (Part 6)

Part 1, 2, 3, 4, 5, 6, 7 One step ahead, Limor advertised and makes an awsome product available in her already famous shop. Now introducing the SUGURU! Sugru is like modeling clay when you take it from its pack. Once it’s exposed to air, it cures to a tough flexible silicone overnight using the moisture in the air. Working time = […]

Incremental rotary encoders (Part 7)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 I received many requests and questions regarding the encoder posts. Here is some sort of a FAQ section related to the PlainENC library. Q: Is PlainENC really working? A: Yes it is! I tested it and I am actually using it routinely in various applications without the least problem Q: Some […]

I/O LED (Part 2)

Part 1, 2, 3, 4, 5, 6 In the previous example, we observed the discharge time of the parasitc LED capacitance. In this way, LEDs can be used as light sensors. Let’s now see what we could do else when combining the emitting properties of the LED along with its sensing properties. In the next application, an LED will light up […]


Quadcopters are seriously getting serious. I still remember the vist we paid at the Modelexpo show in Paris, dedicated to all sorts of models. The army had a booth outside the main hall showing for the first time a drone prototype. This was… 10 years from now. Much more flexible than airplane style drones, quadcopters […]

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I/O LED (Part 1)

Part 1, 2, 3, 4, 5, 6 I was strugling after parasitic capacitance of photodiodes, when I came accross the awsome paper: “Very Low-Cost Sensing and Communication Using Bidirectional LEDs” witten by Paul Dietz, William Yerazunis, Darren Leigh from the MITSUBISHI ELECTRIC RESEARCH LABORATORIES This paper puts the emphasis on the use of LED for emitting coded pulses as well […]

Arduino 1.0

I gave Arduino 1.0 a try and these are my quick and dirty comments about it. At first glance, nothing is really revolutionary: the look makes beginners feel comfortable with the interface, and that’s great. It has nothing to do with the sophisticated IDEs like Eclipse or .NET IDE which are at the opposite of […]

Site Statistics

12000 unique Arduino addicts visited Arduinoos in September Among the most visited pages, Fast Fourrier Transform (FFT) is (the very) top of the the list, followed by Sound Capture and Fast Signal Sampling before Direct Digital Synthesizer (DDS). These stats are correlated to the request for libraries and they give me precious indications about the […]