Robot Magic

Robot Magic: Beginner Robotics for the Maker and Magician 157

no randomness involved at all! Press reset on the Arduino

and let’s do it again. The first press of the button makes

the LEDs flash in a seemingly random order. The truth

is, under case 1: you can see the LEDs blinking in a

very specific order. Press the button a second time and

one seemingly random LED stays on. In actuality, it’s

not random at all! It is all pre-programmed specifically

to seem random to an audience, while the performer

remains in total control of the outcome.

But before we get to the performance technique,

let’s finish our build:

• Let’s use masking tape to further ...