Takes the outputs of 2 2 pole tilt switches and displays their current state(s) on 4 LEDs. Each tilt switch covers 2 cardinal directions, and is named as such in the code. In other words, one switch ...

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An Arduino Uno board is used to process the data received from the accelerometer and switch on the corresponding LED to indicate the direction of tilt. Fig. 1 shows the author’s prototype and Fig. 2 ...