Bullsh*t meter

I made a bullsh*t meter for my father’s christmas present, using a basic arduino code that generates a random percentage (based on the ambient current entering one of the arduino’s analog pins) when the button is pressed, and sets the servo to the corresponding location on the face of the meter. It then flashes the appropriate LED to indicate if the amount of bullsh*t is low medium or high, while playing a beep using the piezo buzzer. the meter also includes a standard equation between the amount of ambient bullsh*t (BS) and the amount of sh*ts to give (SIG):

bullshit meter


circuit diagram
view of the interior