Hello (Arduino's) World!
First of all, let me briefly introduce myself - I am a veterinarian and researcher, passionate about photography, music and electronics.
Now, to my project: I need to build a system that measures the inclination of an object and sends the data wirelessly to the arduino. This, in turn, should actuate a servo whenever the inclination angle exceeds a given value.
Being a complete newbie to this world I am moving on step by step. What I am up to right now (and stuck there
) is trying to make Arduino read values from the ADXL345 accelerometer. I know there's plenty of examples and pre-build sketches around, but I've tried many and none of them seems to work. So I guess I am missing some important point and this is why I am here to ask for advice.
What I did so far is:
1) Setting up the arduino, following the official quickstart guide (including uploading the example sketch in the Arduino software) - everything seems to work as expected
2) Connecting the ADXL345 as explained here: http://www.sparkfun.com/tutorials/240
3) Uploading the sketch reported in the same site.
According to the explanation I should get measures of the sensor inclination in the three axis, but what I get on the Serial Monitor is just a bunch of zeroes, and, of course, nothing changes when I tilt the sensor.
Is there anything else I was supposed to do before being able to read values from the accelerometer (e.g. should I have uploaded a library onto the arduino)?
Any hint would be appreciated!