Here is my fortune-telling crystal ball!
I designed the behaviour of the LEDs to imitate the magical process of the crystal ball: initially ‘reading’ it’s subject, then slowly detecting imagery, then suddenly exploding in fortunes so that it blows out! I aimed for the subject’s reactions to reflect these changes: starting off calmed, becoming increasingly curious and apprehensive, building to a climax of excitement, then suddenly stunned by it’s abrupt end…. what did it see?!
I found it challenging to create a sense of randomness rather than repetition with the loop function, so want to work on this further. However I’m pleased overall with the way the LEDs build in energy over time.