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Spikes on Accelerometer Data

Question asked by Moises Ferber on Oct 12, 2014
Latest reply on Oct 27, 2014 by Moises Ferber

Hello! I 'm developing a motion detection application using MMA8453Q and I2C for communication between the microcontroller and the accelerometer. Occasionally, like once every five or ten seconds, there 's a spike in the data. For example, the z-axis acceleration is at around 1.0g and suddenly it drops to almost 0.0g and goes back to 1.0g. All of that happens in 3 samples, at 800Hz.

Is this a "normal" situation or there's something I'm missing? One of my colleagues thinks it's a problem with the I2C, but I doubt it.