Browsing All Posts published on »March, 2011«

Programming Arduino Uno in pure C

March 29, 2011

69

Playing with Arduino board and its graphical development environment I felt the urge to work closer to the hardware, stepping away from the default library and the Java IDE and using the compiler directly from the command line. Fortunately all the tools are there, because the Arduino IDE uses them under the hood. So I […]

Capturing an analog signal with Arduino and python

March 26, 2011

1

Last week I salvaged a magnetic sensor from a stationary bike and connected it to my Arduino Uno in order to analyze the sensor’s behavior with the ADC converters.   I wanted to capture a good enough signal, so I searched about the Arduino capabilities: From analogRead() reference description: It takes about 100 microseconds (0.0001 […]

Videos of last Embedded Linux Conference are out

March 21, 2011

0

Last October the Embedded Linux Conference Europe (ELCE) 2010 was held in Cambridge¬† (UK). Today the videos of that conference are available on Free Electrons site. My Top-5 of the most interesting videos is as follows: Panda board demonstration, Rekha Kumar and Nipuna Gunasekera (Texas Instruments): Video Software Considerations When Using High-Performance Memory Systems, Leif […]

Salvaging an old stationary bike RPM sensor

March 20, 2011

7

I had to dispose of an old stationary bike that little by little fell apart. Before throwing it away I wanted to see if I could salvage something from its simple electronics. The bike has a sensor that somehow detects the rotation of the crankset and then is used to display the RPM on a […]

ZPUino open source processor

March 6, 2011

0

ZPUino is a project that offers a microprocessor that can be put on FPGA, and that can be programmed with a simple IDE. Everything is open source: the toolchain, the IDE and the VHDL code; and it can be downloaded freely. The hardware architecture is based on the ZPU (Zylin CPU), which is a processor […]

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