Our code spit out on the serial console.

我们的代码在串行控制台上吐出。

Maybe it's LEDs, maybe it's something on the serial console.

可能是LED，也可能是串口控制台上的什么东西。

There is a GPU here, a bunch of peripherals here, like a UART, a serial console, or serial port.

这里有一个 GPU，这里有一堆外围设备，例如 UART、串行控制台或串行端口。

And as you can see using a serial console on these devices you can track what's going on.

正如您所看到的，在这些设备上使用串行控制台可以跟踪正在发生的事情。