The good news is that these are very common and cheap, but the bad news is that they are not very good for microcontroller hackers. These have little chips in them that are very specialized – they show up in your computer as a serial port but they do it through USB. ![]() ![]() So what if you still want that serial port? Well, you can use a usb-serial converter. USB is better for users because theres only one connector, and information can be sent really fast with no errors.īut the trade-off is that USB is more complex than serial or parallel since data is wrapped in complicated, super-fast packets. Nowadays, few computers have parallel or serial ports, they have been replaced with USB. These were great for engineers because they were easy to connect to – data sent from the computer showed up exactly the way it was sent. Connecting a microcontroller to a computer or laptop is a common problem: For decades, all computers had serial ports and parallel/printer ports.
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