The GY-51 LSM303DLH chip has an accelerometer, magnetometer, A / D converters and signal conditioning circuit integrated. Still, the communication to the processor is done through the I2C bus. Thus only one chip is required to achieve a six-axis data detection and output. The LSM303DLH requires very little peripheral devices.

This AT407 basic tilt switch can easily be used to detect orientation. Inside the can is a ball that make contact with the pins when the case is upright. Tilt the case over and the balls don't touch, thus not making a connection. There are numerous uses for these basic sensors, but keep in mind you might need to use some debouncing code, as the sensor...