Tag Archive: android

Animated Halloween Mask

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The Mask

I’ve built an animated mask. It can move its eyes back and forth, and open and close its mouth. Everything is stuck together using duct tape and steel wire. It is controlled by an app on an Android phone, through a cheap Bluetooth module.

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Android Accelerometer App

This entry describes a quick and dirty way of displaying accelerometer data on an android device. The application outputs the applied force as a circle, where the radius of the circle represents the magnitude of the force vector, with the gravity subtracted. It also demonstrates the difference between a shifting buffer and a ring buffer.

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