Federal University of Santa Catarina, "Using a potentiometer to turn LEDs on and off,”Federal University of Santa Catarina. [Online]. Available at: https://lisha.ufsc.br/teaching/esl/exercises/potentiometer-leds.html [Accessed: 3-Jun-2020].

Arduino, “Map,” Arduino. [Online]. Available at: https://www.arduino.cc/reference/en/language/functions/math/map/ [Accessed: 3-Jun-2020].

Arduino, “State Change Detection,” Arduino. [Online]. Available at: https://www.arduino.cc/en/Tutorial/StateChangeDetection [Accessed: 10-Jun-2020].

Dan Nguyen, “Text as String Objects,” Computational Methods in the Civic Sphere . [Online]. Available at: http://www.compciv.org/guides/python/fundamentals/text-as-strings/ [Accessed: 10-Jun-2020].

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