Back in July, I ordered one of the early versions of the Olinuxino A13 board since it seemed very cool: powerful, open hardware, easily to solder and develop derivative products from it… Unfortunately, there was a minor hardware issue on the VGA output which Olimex guys promptly fixed and share the fixing procedure with us. These are some pictures I took …
Fixing Olinuxino A13 Dev board hardware VGA problems Read More »
I’m happy to finally disclose our work on PALLA, a spherical wireless device designed for usage in videogames and computer based leisure activities. I just opened its project page where you find all the details about it, including some publications on it. The device has been presented officially at the Fun and Games 2012 conference at the …
I’m working on a little project using the CC430 microcontroller (specifically a CC430F6137) from Texas Instruments.. well, I was a bit skeptical about this project because the micro is pretty hard to solder, (it’s a QFN with 64 pins).. however, some time ago I soldered it fine and only today I finally had time to run some code on …
Custom made PCB with CC430 works! Blinking wonderfully 🙂 Read More »
I’m working on a user friendly calibration program, since I’m completely aware that what I released some time ago using a python script and Octave is very complex to use for FreeIMU library users. So, I’m creating a new calibration software which will use Python, Numpy and its linalg component to provide an easy to …
Ellipsoid into Sphere Optimization using Numpy and linalg Read More »
I’m happy to finally publish a first working version of the FreeIMU Magnetometer and Accelerometer Calibration GUI. Currently, it should allow you to visually calibrate your accelerometer and magnetometer after you connected your IMU to a microcontroller running the FreeIMU_serial example in the FreeIMU library. NOTE: You have to use the FreeIMU_library available on the repository, not the …
FreeIMU Magnetometer and Accelerometer Calibration GUI: alpha version out Read More »
Testing the FreeIMU framework orientation sensing after using the new FreeIMU calibration GUI to calibrate Accelerometer and Magnetometer. As you should see, this is pretty accurate and drift free estimation.
I’m happy to inform you that I’ve finally created a community website for the FreeIMU project. You can see it at freeimu.varesano.net. Right now, it’s a simple forum website built on top of Drupal with still a pretty crude graphic.. I decided to use Drupal instead of other forum specific platforms (SMF, phpBB, vBulletin, etc..) because …
Here it is, the new MS5611-01BA03, finally on my table for testing. 🙂
Just a dumb video testing digital input/output on buttons in my CC430 based project.. nothing fancy but needed testing. See the SPI LCD connector and the MPU6050 over I2C.. these will be fun! Here is the code: #include <cc430x613x.h> #include <inttypes.h> int main(void) { unsigned int count; uint8_t but0, but1; WDTCTL = WDTPW + WDTHOLD; …
This is a presentation video I recorded some time ago which presents the FreeIMU project as of Autumn 2012. Hope you like it!