Archive for November 2012

Sold out!

As I was OOO for one day, I received a notification on my mobile that Arduino Due was available for purchase. Great news indeed which almost made my day. Back to the office, I connected myself to and….     Too bad, so sad. Lesson learned: Jump on arduino site as soon as I […]

Fast Fourier Transform (FFT) (Part 10)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 Now that we know how to get nice, clean frequency spectra comes the time for extracting valuable information. For this pupose, I added a couple of DSP functions to the (now very popular) PlainFFT library. As we will deal with peaks, I created a dedicated variable which will be update by these functions: typedef […]

Connecting AVRISP to Arduino (Part 3)

Part 1, 2, 3, 4 After following the described procedure you get this boring stupid message: “avrdude: usbdev_open(): did not find any USB device “usb””   What the hell is this? Wrong driver! For some obscure reasons, the default driver installed by Windows (in my case XP Pro version) will not work! The good news, is that there is […]

Connecting AVRISP to Arduino (Part 2)

Part 1, 2, 3, 4 Uploading a fresh version of the bootloader to Arduino (UNO/Duemilanove) Connect AVRISP and Arduino   Power the Arduino board using an external DC power supply (7 to 12 V). If necessary set the power supply jumper of the Arduino Board to external. Connect the ICSP programmer to the ICSP port on the Arduino […]

Connecting AVRISP to Arduino (Part 1)

Part 1, 2, 3, 4 This post introduces a new series dedicated to Avr programmers We will start today with the AvrISP mkII, a small, quite cheap and handy programmer. Not like usual, I will not put a good word on Arduino. Arduino boards are missing the little red dot next to pin 2 from the ICSP connector in […]

Blog of the day

    Coolarduino, a blog with a high level content, dedicated to “DSP or related to signal processing projects build with Arduino Uno board”