 For the CircuitPython Parsec today, I want to talk to you about a new to me, at least, serial program that allows you to communicate with your devices and read out debugging and send information to your microcontrollers, which is super, super useful. So I'm on a Mac, and usually I use screen. Works really well, except for one major problem, which is anytime I disconnect, which is every time you reset or unplug and re-plug the board, you've got to re-run the screen command. So what I'm using now is called TO. It's at github.com slash TO slash TO, T-I-O. And here's how it works. I have a NeoTrails M4 plugged in here, and I'm plugged in over USB. You can see I'm actually sending it some info that's causing these lights to blink. And let's say I'm debugging and I want to spy on that info. So if I have print statements in my program, which I do here, you can see there's various print statements. Where those print out is serial port of some kind. So what I'm going to do is run this command, which is TO, and then the port it's on, in this case dev, tty, usb modem. When I hit enter here, you can see TO connected, it gave me some little messages to say connected. And now it's printing out info. Now here's the really cool part. Unlike screen, if I go ahead and reset this board or unplug it and re-plug it, I'm just going to hit the reset button on there. It is going to disconnect the board, but now it tries to and succeeds at reconnecting. Same thing happens if I pull power. So let's say we pull power for some reason. We go and noodle around with a circuit, connect it to a board, let's say, plug it back in. When that reconnects, we're up in business again. So really cool, very helpful for any of your debugging on your microcontrollers. That's my Circuit Python Parsec for the week. It is TO.