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This weekend (18-19 June 2011) I’ll participate in the Arduino Camp Milano.. I’ll bring there some of my projects: PALLA, FreeIMU and Femtoduino. If you happen to be there, let me know. Looking forward knowing you in person.

I’ve been asked how to connect a Sparkfun breakout board for the ITG3200 to an Arduino UNO. Here’s a schematics of the connection. If you are using an Arduino Mega you’ll have to use pins 20 (SDA) and 21 (SCL) instead of A4 and A5. IMPORTANT: Remember that in order to use this setup you have

Wire, the library available in the Arduino apis to communicate with devices on the I2C bus, as of the 022 version of the Arduino IDE, by default enable the internal pullups of the ATMEGA microcontroller. As all 16MHz ATMEGA runs at 5V this means that with pullups enabled signals will have a 5 volt as

In this video I documented how I’m using Press and Peel blue sheets for toner transfer PCB etching for an Arduino Shield PCB. The video covers all the steps in the procedure somehow explained in my awful English.

An accelerometer is subject to dynamic (or external) and static (gravity) accelerations (see my thesis, chapter 5.1). This means that whenever you are interested in measuring dynamic accelerations rather than gravity you have to compensate for gravity. I implemented a very simple approach for doing so, assuming that you have a 9 degrees of measurement inertial

This is one of the very first FreeIMU v0.3.5_MS I assembled during the past weekend. This is probably one of my best soldering work and PCB design.

Bad news for those who were waiting for the MPU6000 and MPU6050 from Invensense. Macnica.eu, the Invensense’s EU distributor of has just notified their customers on list for the MPU60X0 sensors, thus also myself, that:Dear customers, Macnica received the updated situation of MPU-6000 and MPU-6050 deliveries from InvenSense. We have been informed that MPU-6000 and

This is a picture of the flight controller Tilman from microcopters.de has been able to assemble using an Arduino Pro Mini and FreeIMU v0.3.5 (version without barometer). The full article is available in German here.

Just put out from their package. 100 MS5611-01B01 high resolution pressure sensor. Sexy!

I designed FreeIMU for human-computer interaction.. but hey.. a good tool may be used in many different applications. So, it turned out that FreeIMU is actually a pretty good sensor board for using in flying machines, especially on multicopters applications. Just one year ago, I wasn’t experienced at all in all the quadcopter/multicopter stuff but as soon