Archive for February 2012

MicroLS (Part 3)

Part 1, 2, 3 Here is a suggestion of use for the acquired and transformed signal. The frequency spectrum is cut in as many times as the number of leds. The average value of the intensities is computed from each frequency compartment. The level of this average value is compared to a trigger level which switches the leds […]

MicroLS (Part 2)

Part 1, 2, 3 All fun of the project lies in the code! Its construction comes almost trivial and will look like: Set acquisition parameter Endlessly: Acquired data Adjust data Execute FFT Compute frequency spectrum Extract information from spectrum and switch leds on and off accordingly Here is a look and feel about the header of the sketch […]

Quadcopters

Part 1, 2, 3, 4, 5, 6 A very nice blog which includes a lot of valuable information related to quadcopters Starlino deserves 4 stars !

MicroLS (part 1)

Part 1, 2, 3 MicroLS stands for micro Light Show! Let’s have some fun with Arduino for a time! Get the latest Flash Player to see this player. [Javascript required to view Flash movie, please turn it on and refresh this page] Behind the scene of MicroLS are quite powerful functions that most of Arduinoos […]

Joke of the Day

Let’s celebrate the second record breaking day of Arduinoos (Over 800 visitors a day) with a little joke. While searching an IKEA user manual for a battery charger, I found this paper related to the availability of car chargers at this shop. That I immediately converted into: Arduino can blink too! … and possibly charge […]

Fast Signal Sampling (Part 11)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 11, 12 Previous post on same subject PlainADC has been again revised, optimized and refined. The single shot function has been retired. The reasons are: firstly PlainADC is optimized for scan data not really for acquiring single data. The analogRead() function does […]

Clarification

All the published material from this blog is provided as is, without any waranty or support. For preventing misunderstanding and unpleasant comments, I removed all references to Arduinoos code downloads, since my policy is now based on code request: please check the “Code request” tab from the home page. The aim of this strategy is […]

Fast Signal Sampling (Part 10)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 11, 12 PlainADC looks like it is a live product with always room for improvements. Before releasing an other really amazing new version, we may review a few critical things that developers should feel confortable with prior to interfacing the library to […]