An Arduino is a microcontroller — a single board designed to control something and perform a specific task ... By placing a unit equipped with an ADXL345, an accelerometer for detecting motion, or a ...

You can also see the USB mini-b connector which gives you access to the Arduino compatible ATmega328 microcontroller on the back. There is also a piezo buzzer for your alarm needs. The prototype ...

The Arduino transfers tactile generation data ... drivers that support up to eight output channels, it drives the piezoelectric control of the device, generating tactile sensations.