Browsing All Posts published on »March, 2011«

Programming Arduino Uno in pure C

March 29, 2011

101

We look under the hood of Arduino IDE, and use the avr-gcc compiler directly to build a program in C. We then use avrdude to upload it on Arduino Uno board.

Capturing an analog signal with Arduino and python

March 26, 2011

2

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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