 This is the binary bracelets lesson. We are going to code our initials on a bracelet that we can wear. And show all our friends. You look good. Okay, and see. So, Kay has eight digits. Binary is a way of representing information using only two options. Sometimes people think of this as only ones and zeros. But you can represent binary with combinations of on or off. Up and down. In and out are really any set of options. Hi, I'm Orion and I program robots here at Play Eye. All computers and robot brains at their most fundamental level are little electronic gates. And when the gate is open, electricity can flow through. And when it's closed, electricity can't. So an example of binary on the robot is the robot's eyes. The robot's eyes are LEDs and those are lights that are either on or they're off. It's a binary system, one or the other. We can use the lights to represent binary numbers. So if we have a set of robots, we can say that, you know, the first robot is the one's place. The second robot is the two's place. The third robot is the four's place and so on. And that's how you represent a binary number. And the robots will do it with their binary eyes and count it out for you.