dombeef:
I am using an accelerometer from FIRST(Here is the datasheet http://www.usfirst.org/sites/default/files/uploadedFiles/Robotics_Programs/FRC/Game_and_Season__Info/2012_Assets/Accelerometer-Gyro.pdf) and when I try to connect it, no matter what I try to do, it will always give me either -1,-1,-1 or 0,0,0 for the readings. I am using an Arduino Uno and I tried these tutorials:
http://bildr.org/2011/03/adxl345-arduino/# and ADXL345 Hookup Guide - SparkFun Learn and the given libraries for each one.Any help is gladly appreciated.
Please post your code and schematic.