I'm working on a mostly super-secret project that requires accelerometer data. Phase one is characterizing the response caused by static acceleration due to gravity. The rotation stage is hooked up to a stepper motor. I have it turn one degree and pause for one second, through two full revolutions. The data is logged to SD card. This yields a series of sine waves for the three axes, although only two of them do much of anything interesting at a time. There's a lot of oscillation after each rotation step, which will need to be filtered out to get just the static response. A big thank-you goes to Lisa, who built the jig to attach the boards to the rotation table.

One of the input channels on the ADC was getting bad data. Turns out I lifted a pad while reworking the connector on the IMU board. Whoops. It's been since fixed.