i'm new to arduino and would like to know how you can determine that a sensor is compatible with an arduino board.
I would like to purchase http://export.farnell.com/invensense/itg-3200/ic-gyro-tri-axis-2000-deg-s/dp/1858279RL but i'm not sure whether it works.
my search has brought me some understanding but has raised several questions more:
In another topic (http://arduino.cc/forum/index.php/topic,104951.0.html) about which sensors can be directly connected to the arduino UNO, krodal states:
It's not hard. The only problem is that most sensors use 3.3V. But the Arduino has 3.3V onboard for those sensors.
The accelerometer i want to use in my project runs on 3V (http://www.bosch-sensortec.com/content/language1/downloads/BMA150_Flyer_Rev1.3_14JAN2008.pdf)
I was in the understanding that i could not use this sensor directly on the arduino UNO since the arduino runs on 5V (and it would fry the sensor). But if you look at the arduino picture:
You see that at the bottom there is indeed a pin which states 3.3V. Does this mean that the board can run on 3.3v as well, or what is the pin for?
in the tutorial on arduino.cc (http://www.arduino.cc/en/Tutorial/ADXL3xx) it says that the example uses the breakoutboard from sparkfun. http://www.sparkfun.com/products/9814 But it seems that even that board requieres 3.3V. How can they manage?
(i've also put this question in the topic list)
Please advice and explain!