![]() ![]() An easy way to communicate with the UART from another computer is via a TTL to USB Serial Cable. The answer is simple, you need to stop the Serial Console on the UART. The Serial Console is in the way, and can lead to some strange data. ![]() ![]() For example, if you are interfacing with a micro-controller such as an Arduino or another device, you may want to just pass data back and forth. You will see the familiar login prompt from the Jetson. Then open up a serial communications program and power on the Jetson. You can observe the console by simply wiring the Nano to another computer, either through another UART or a TTL to USB cable. When the Jetson starts up it opens a Serial Console on the J41 UART as a service. However, there is an assumption about its use which may confuse folks who aren’t in the know. This is what you consider a general purpose UART, with no special assigned function. The second UART, which we are writing about here, is on the J41 header. The Serial Debug Console is useful for many tasks, including helping with start-up issues. We have an article about the Serial Debug Console which is on the J44 header. ![]()
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