Hi. I'm trying to use an MMA7361 accelerometer, purchased from Oddwires.com (link to product data, libraries, and example code: http://www.oddwires.com/mma7361-accelerometer-sensor-module/), with an Arduino Uno board.
The example sketch in question, G_Force.ino, can be found in the "Product Documents" tab at the link above. The chip is receiving power (red LED on), and the calibration step seems to run fine. From there, however, I'm getting the default post-calibration readings for all three directional sensors (x=0, y=0, z=100), no matter how much I shake the chip.
The only thing I've modified from the default wiring is to change pin 13 to pin 18, and pin 10 to pin 17 (I have other components utilizing those default pins). I did try it with the default pins to be sure, but still no success. Power is 3.3V to 3.3V.
Is there a way to tell if this is a defective module? It has a self-test feature, but I can't figure out how to use it or what exactly it would tell me. This chip sat in my mailbox for two days at temperatures around 0F... unsure if that could've damaged it.
I've attached the documentation that accompanies the library. Thanks in advance for your help.
refman.pdf (82.8 KB)