Networked Objects Project 1

Physical Computing Improv Project: My action that I've decided on is tapping: And my object is pudding: The end goal here, is to have a kinetic motion (pudding jiggling) to happen when a sensor picks up tapping. As a sensor I picked an accelerometer, and as an actuator, I picked vibration motors. The circuit I ended up with looks like this: The pictures of the final product are here: And with pudding intact: One vibration motor didn't give enough jiggle, so I used two in parallel: The sensor was noisy, and my algorithm was (where X = X, Y, and Z axes): Take Xavg = average sensor reading (20 samples) Xdiff = abs(Xavg - Xreading) If Xdiff > Threshold, buzz, else re-run. The problem with the algorithm, was that as the sensor drifted (as it liked to do), the pudding would start jiggling without reason. I think if I were to do this project again, a better algorithm would be to use the math.h library (it has square root), take a running average of the inputs, and buzz only for any input that's over one standard deviation above the mean.