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accurate accelerometer calibrating

Question asked by khatarat on Oct 3, 2010
Latest reply on Oct 4, 2010 by khatarat

hi

i want to get angle of rotation from a tri axis acceleromter(adxl330) how can i exactily calibr sensor to get a good out put? i have manually calibr it but the rang of out put of roll and pitch is from -175 to about 175 degrees.between this the out put is incorrect. i want to get fully 360 degrees from sensor. thanks

//ax is accelerometer x output and ...

float bank = atan2(ay,az);
float elevation = -atan2(ax,az);

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