 For the Circuit Python Parsec today, I want to show how you can use a random integer and a random float with our random library to play some simple tones that equate a sort of bleepy-bloopy-the-computer-is-thinking type of sound. So look how simple this code is. First of all, let's do an audio demo. I've got it hooked up and running. I'm just going to enable the speaker. So the way we're getting those cool little bleepy sounds is importing the board library and simple IO. Simple IO is going to be used with this simple IO tone, which just requires a frequency and a duration. So you'll notice I don't even need to import time. Then I'm importing two things from the random library, rand range, which we use to set a random range of integers, and uniform, which is used to give us a uniform distribution from zero to one of a float or a decimal number. While I do in my main loop, I set the frequency to be a random range. In this case, I'm using anywhere from 40 hertz to about 1200 hertz. And then the duration is anywhere from 0.2 seconds to 0.125 seconds. Then every time the simple IO tone is called, it plays over the pin A0, analog pin, whatever that frequency and duration are, and then it repeats that over and over again. So play that again. You can see here, if I raise the pitch, let's say, we'll get some higher, now it's going a little bit higher, I can also set some longer durations, let's say half second ones. So now it's hanging out for half a second on some of those tones. And that is how you can use random range and uniform to play some really simple tones using the simple IO tone library and make your computer think. That is your Circuit Python Parsec.